Flights from Denver to San Francisco (DEN to SFO)

Discover more affordable routes and cheaper dates for flights from Denver to San Francisco (DEN to SFO) within a date range.

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US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 34 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 33 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 24 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 28 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 27 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 26 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 27 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 30 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 23 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 32 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 26 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 25 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

8:51am - 12:29pm
Mon Sep 1st 2025

2h 38m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 19 nights

Mon Sep 1st 2025 Frontier Airlines · F9 1094 Depart at 8:51am from San Francisco (SFO) Fly for 2h 38m Arrive at 12:29pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 20 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 19 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 16 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 20th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 7 nights

Wed Aug 20th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 20th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 6 nights

Wed Aug 20th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 4 nights

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 5 nights

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:26am - 10:06am
Thu Aug 21st 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 7 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1230 Depart at 6:26am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:06am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:34am - 10:14am
Sat Aug 23rd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 9 nights

Sat Aug 23rd 2025 Frontier Airlines · F9 1230 Depart at 6:34am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:14am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:26am - 10:06am
Thu Aug 21st 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 8 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1230 Depart at 6:26am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:06am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:34am - 10:14am
Sat Aug 23rd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 10 nights

Sat Aug 23rd 2025 Frontier Airlines · F9 1230 Depart at 6:34am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:14am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 1 night

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:34am - 10:14am
Sat Aug 23rd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 6 nights

Sat Aug 23rd 2025 Frontier Airlines · F9 1230 Depart at 6:34am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:14am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:26am - 10:06am
Thu Aug 21st 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 4 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1230 Depart at 6:26am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:06am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 20th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 3 nights

Wed Aug 20th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 27th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 14 nights

Wed Aug 27th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 27th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 13 nights

Wed Aug 27th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 27th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 10 nights

Wed Aug 27th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Aug 26th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 9 nights

Tue Aug 26th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Aug 26th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 12 nights

Tue Aug 26th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Aug 26th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 13 nights

Tue Aug 26th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 18 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 20th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 5 nights

Wed Aug 20th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 3 nights

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Mon Sep 8th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 22 nights

Mon Sep 8th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Mon Sep 8th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 25 nights

Mon Sep 8th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Mon Sep 8th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 26 nights

Mon Sep 8th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Thu Sep 4th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 21 nights

Thu Sep 4th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Thu Sep 4th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 18 nights

Thu Sep 4th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Thu Sep 4th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 22 nights

Thu Sep 4th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:34am - 10:14am
Sat Aug 23rd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 8 nights

Sat Aug 23rd 2025 Frontier Airlines · F9 1230 Depart at 6:34am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:14am in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:26am - 10:06am
Thu Aug 21st 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 6 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1230 Depart at 6:26am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:06am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 13th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 27 nights

Sat Sep 13th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 27th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 12 nights

Wed Aug 27th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 13th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 31 nights

Sat Sep 13th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 13th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 30 nights

Sat Sep 13th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Aug 26th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 11 nights

Tue Aug 26th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 6th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 20 nights

Sat Sep 6th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 6th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 24 nights

Sat Sep 6th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 6th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 23 nights

Sat Sep 6th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Mon Sep 8th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 24 nights

Mon Sep 8th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Thu Sep 4th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 20 nights

Thu Sep 4th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 13th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 29 nights

Sat Sep 13th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 6th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 22 nights

Sat Sep 6th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 21st 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 8 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 21st 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 7 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 21st 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 4 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Wed Aug 13th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 28th 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 14 nights

Thu Aug 28th 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Sat Aug 16th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 28th 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 11 nights

Thu Aug 28th 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

9:36pm - 11:25pm
Tue Aug 12th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 28th 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 12th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 15 nights

Thu Aug 28th 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 21st 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 6 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$119

10:29pm - 12:19am
Thu Aug 14th 2025

2h 50m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 28th 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 Frontier Airlines · F9 3439 Depart at 10:29pm from Denver (DEN) Fly for 2h 50m Arrive at 12:19am in San Francisco (SFO)

Stay in San Francisco for 13 nights

Thu Aug 28th 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 31 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 30 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 37 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 23 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 8 nights

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 27th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 17 nights

Wed Aug 27th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:34am - 10:14am
Sat Aug 23rd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 13 nights

Sat Aug 23rd 2025 Frontier Airlines · F9 1230 Depart at 6:34am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:14am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:26am - 10:06am
Thu Aug 21st 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 11 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1230 Depart at 6:26am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:06am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 20th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 10 nights

Wed Aug 20th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Aug 26th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 16 nights

Tue Aug 26th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:45am - 2:26pm
Thu Sep 4th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 25 nights

Thu Sep 4th 2025 Frontier Airlines · F9 1094 Depart at 10:45am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:26pm in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

10:49am - 2:30pm
Sat Sep 6th 2025

2h 41m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 27 nights

Sat Sep 6th 2025 Frontier Airlines · F9 1094 Depart at 10:49am from San Francisco (SFO) Fly for 2h 41m Arrive at 2:30pm in Denver (DEN)
US$123

9:36pm - 11:25pm
Sat Aug 9th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

12:48pm - 4:31pm
Thu Aug 21st 2025

2h 43m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 9th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 11 nights

Thu Aug 21st 2025 Frontier Airlines · F9 1094 Depart at 12:48pm from San Francisco (SFO) Fly for 2h 43m Arrive at 4:31pm in Denver (DEN)
US$134

9:36pm - 11:25pm
Tue Aug 5th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 5th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 41 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$134

9:36pm - 11:25pm
Tue Aug 5th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 5th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 35 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$134

9:36pm - 11:25pm
Wed Aug 6th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Wed Sep 10th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 6th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 34 nights

Wed Sep 10th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$134

9:36pm - 11:25pm
Wed Aug 6th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 16th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 6th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 40 nights

Tue Sep 16th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$134

9:36pm - 11:25pm
Wed Aug 6th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 6th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 33 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$134

9:36pm - 11:25pm
Tue Aug 5th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

7:10am - 10:47am
Tue Sep 9th 2025

2h 37m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 5th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 34 nights

Tue Sep 9th 2025 Frontier Airlines · F9 1230 Depart at 7:10am from San Francisco (SFO) Fly for 2h 37m Arrive at 10:47am in Denver (DEN)
US$134

9:36pm - 11:25pm
Wed Aug 6th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 6th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 26 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$134

9:36pm - 11:25pm
Tue Aug 5th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Tue Sep 2nd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 5th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 27 nights

Tue Sep 2nd 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$134

9:36pm - 11:25pm
Tue Aug 5th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:50am - 10:30am
Wed Aug 20th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 5th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 14 nights

Wed Aug 20th 2025 Frontier Airlines · F9 1230 Depart at 6:50am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:30am in Denver (DEN)
US$134

9:36pm - 11:25pm
Tue Aug 5th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Tue Aug 5th 2025 Frontier Airlines · F9 1093 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 12 nights

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$134

9:36pm - 11:25pm
Wed Aug 6th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:37am - 10:17am
Mon Aug 18th 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 6th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 11 nights

Mon Aug 18th 2025 Frontier Airlines · F9 1230 Depart at 6:37am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:17am in Denver (DEN)
US$134

9:36pm - 11:25pm
Wed Aug 6th 2025

2h 49m
Denver (DEN) → San Francisco (SFO)

Direct

6:34am - 10:14am
Sat Aug 23rd 2025

2h 40m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 6th 2025 Frontier Airlines · F9 3439 Depart at 9:36pm from Denver (DEN) Fly for 2h 49m Arrive at 11:25pm in San Francisco (SFO)

Stay in San Francisco for 16 nights

Sat Aug 23rd 2025 Frontier Airlines · F9 1230 Depart at 6:34am from San Francisco (SFO) Fly for 2h 40m Arrive at 10:14am in Denver (DEN)
US$354

4:00pm - 5:43pm
Wed Aug 13th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Wed Aug 27th 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 13 nights

Wed Aug 27th 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$354

4:00pm - 5:43pm
Wed Aug 13th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Wed Aug 20th 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 6 nights

Wed Aug 20th 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$354

4:00pm - 5:43pm
Wed Aug 13th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Thu Aug 21st 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 7 nights

Thu Aug 21st 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$354

4:00pm - 5:43pm
Wed Aug 13th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

8:52pm - 12:28am
Wed Aug 27th 2025

2h 36m
San Francisco (SFO) → Denver (DEN)

Direct

Wed Aug 13th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 14 nights

Wed Aug 27th 2025 United Airlines · UA 1871 Depart at 8:52pm from San Francisco (SFO) Fly for 2h 36m Arrive at 12:28am in Denver (DEN)
US$381

3:55pm - 5:46pm
Sat Aug 16th 2025

2h 51m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:34am
Tue Aug 19th 2025

2h 34m
San Francisco (SFO) → Denver (DEN)

Direct

Sat Aug 16th 2025 United Airlines · UA 2633 Depart at 3:55pm from Denver (DEN) Fly for 2h 51m Arrive at 5:46pm in San Francisco (SFO)

Stay in San Francisco for 2 nights

Tue Aug 19th 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 34m Arrive at 8:34am in Denver (DEN)
US$577

4:00pm - 5:43pm
Mon Jul 21st 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Wed Sep 10th 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Mon Jul 21st 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 50 nights

Wed Sep 10th 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$578

4:00pm - 5:43pm
Sun Jul 20th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Thu Aug 21st 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Sun Jul 20th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 31 nights

Thu Aug 21st 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$748

4:00pm - 5:43pm
Sun Aug 17th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Mon Aug 25th 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Sun Aug 17th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 7 nights

Mon Aug 25th 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$807

4:00pm - 5:43pm
Thu Aug 14th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Thu Aug 21st 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Thu Aug 14th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 6 nights

Thu Aug 21st 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)
US$871

4:00pm - 5:43pm
Sun Aug 17th 2025

2h 43m
Denver (DEN) → San Francisco (SFO)

Direct

5:00am - 8:35am
Wed Aug 20th 2025

2h 35m
San Francisco (SFO) → Denver (DEN)

Direct

Sun Aug 17th 2025 United Airlines · UA 2633 Depart at 4:00pm from Denver (DEN) Fly for 2h 43m Arrive at 5:43pm in San Francisco (SFO)

Stay in San Francisco for 2 nights

Wed Aug 20th 2025 United Airlines · UA 2420 Depart at 5:00am from San Francisco (SFO) Fly for 2h 35m Arrive at 8:35am in Denver (DEN)

Sarah Belizaire

@sarahbb1

Have flexible travel plans or looking for alternative routes given the chaos? Check out all the connection possibilities via a super helpful site created by @ismaelyws flightlist.io thanks to @andy_travels for the recommendation #travel #flights

John Ford

@eyupitsjohn

There seem to be lots of sites launching at the moment that promise to find you cheap flights but not many have the professional finish of Flightlist by @ismaelyws #travel #flights

Roaming Sonaa

@roamingsonaa

For people wanting to maximize their trips, Flightlist is my newest travel hack for uncovering the coolest routes at irresistible prices. No stress, no annoying ads — just seamless flight booking with amazing functionality.

Andy Travels

@andy_travels

@ismaelyws Just tried out Flightlist for the first time. Really nice idea, well made, and just what I need at the moment 👍

Travel With Bender

@travelwitbender

Did you spot my recent article about how to score cheap one way flights? ✈️ FlightList is my new secret tool for discovering cheap routes, within a departure date range. Plus you can also search by country/region for departures & destinations. Powerful! 💪

Wesley Mergard

@travel.with.wes

One useful tool I've found for evaluating different departure and return dates is called FlightList.io. You can quickly scan different travel date ranges, carriers and one way flight options to easily determine the cheapest flight combinations for your trip.

Flights from Denver to San Francisco (DEN to SFO)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

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