Flights from Chicago to Denver (ORD to DEN)

Discover more affordable routes and cheaper dates from Chicago to Denver (ORD to DEN) within a date range.

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US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 13 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 6 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 5 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 12 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Thu Apr 3rd 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 1 night

Thu Apr 3rd 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Thu Apr 3rd 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 0 nights

Thu Apr 3rd 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 8th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 8th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 7 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 8th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 8th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 0 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 12th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 12th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 3 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 5th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 5th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 10 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 9th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 9th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 6 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 15th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 15th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 0 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 5th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 5th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 3 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 7 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 17 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 10 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 14 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 13 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 9 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 16 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 6 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:35am
Thu Apr 3rd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 5th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Thu Apr 3rd 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 50m Arrive at 8:35am in Denver (DEN)

Stay in Denver for 2 nights

Sat Apr 5th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 5th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 3 nights

Sat Apr 5th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 20 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 13 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 21 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 14 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 17 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 10 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 8 nights

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 15 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$84

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:42am
Wed Apr 2nd 2025

2h 34m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 0 nights

Wed Apr 2nd 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 34m Arrive at 12:42am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 8th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 8th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 11 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 8th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 8th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 8 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 12th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 12th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 4 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 5th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 5th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 11 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 5th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 5th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 7 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 9th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 9th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 0 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 8th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 8th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 1 night

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 15th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 15th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 4 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 9th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 9th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 10 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 16th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 16th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 3 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 16th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 16th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 0 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 15th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 15th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 1 night

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 9th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 9th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 7 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:42am
Tue Apr 8th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Apr 8th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 4 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:40am - 8:37am
Wed Apr 9th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 9th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 57m Arrive at 8:37am in Denver (DEN)

Stay in Denver for 3 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 12th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 12th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 7 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 5th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 5th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 14 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:42am
Sat Apr 5th 2025

2h 57m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Apr 5th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 2h 57m Arrive at 8:42am in Denver (DEN)

Stay in Denver for 4 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Tue Apr 1st 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 6 nights

Tue Apr 1st 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Thu Apr 3rd 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 8 nights

Thu Apr 3rd 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Tue Apr 1st 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 7 nights

Tue Apr 1st 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Thu Apr 3rd 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 9 nights

Thu Apr 3rd 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Tue Apr 1st 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 3 nights

Tue Apr 1st 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Thu Apr 3rd 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 5 nights

Thu Apr 3rd 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Tue Apr 1st 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 1 night

Tue Apr 1st 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:15am
Thu Apr 3rd 2025

2h 25m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 3 nights

Thu Apr 3rd 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 25m Arrive at 12:15am in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 14 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 24 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 21 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 17 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 25 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 22 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 18 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 15 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 5th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 11 nights

Sat Apr 5th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 5th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 10 nights

Sat Apr 5th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 21 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 5th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 7 nights

Sat Apr 5th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 11 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 18 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 14 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 19 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 9 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 16 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 5th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 5 nights

Sat Apr 5th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 12 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$84

6:45am - 8:48am
Wed Mar 26th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:42am
Wed Apr 2nd 2025

2h 34m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 7 nights

Wed Apr 2nd 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 34m Arrive at 12:42am in Chicago (ORD)
US$84

6:45am - 8:48am
Tue Mar 25th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:42am
Wed Apr 2nd 2025

2h 34m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 Frontier Airlines · F9 3173 Depart at 6:45am from Chicago (ORD) Fly for 3h 3m Arrive at 8:48am in Denver (DEN)

Stay in Denver for 8 nights

Wed Apr 2nd 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 34m Arrive at 12:42am in Chicago (ORD)
US$84

6:50am - 8:53am
Sat Mar 29th 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:42am
Wed Apr 2nd 2025

2h 34m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 Frontier Airlines · F9 3173 Depart at 6:50am from Chicago (ORD) Fly for 3h 3m Arrive at 8:53am in Denver (DEN)

Stay in Denver for 4 nights

Wed Apr 2nd 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 34m Arrive at 12:42am in Chicago (ORD)
US$84

6:30am - 8:33am
Mon Mar 31st 2025

3h 3m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:42am
Wed Apr 2nd 2025

2h 34m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 31st 2025 Frontier Airlines · F9 3173 Depart at 6:30am from Chicago (ORD) Fly for 3h 3m Arrive at 8:33am in Denver (DEN)

Stay in Denver for 2 nights

Wed Apr 2nd 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 34m Arrive at 12:42am in Chicago (ORD)
US$86

6:40am - 8:34am
Mon Apr 7th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 7th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 8 nights

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$86

6:40am - 8:34am
Mon Apr 7th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 8th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 7th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 1 night

Tue Apr 8th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$86

6:40am - 8:34am
Mon Apr 7th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 19th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 7th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 12 nights

Sat Apr 19th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$86

6:40am - 8:34am
Mon Apr 7th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 9th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 7th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 2 nights

Wed Apr 9th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$86

6:40am - 8:34am
Mon Apr 7th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Wed Apr 16th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 7th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 9 nights

Wed Apr 16th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$86

6:40am - 8:34am
Mon Apr 7th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

9:48am - 1:17pm
Sat Apr 12th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 7th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 5 nights

Sat Apr 12th 2025 Frontier Airlines · F9 3174 Depart at 9:48am from Denver (DEN) Fly for 2h 29m Arrive at 1:17pm in Chicago (ORD)
US$90

6:40am - 8:34am
Mon Apr 14th 2025

2h 54m
Chicago (ORD) → Denver (DEN)

Direct

8:50pm - 12:10am
Tue Apr 15th 2025

2h 20m
Denver (DEN) → Chicago (ORD)

Direct

Mon Apr 14th 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 54m Arrive at 8:34am in Denver (DEN)

Stay in Denver for 1 night

Tue Apr 15th 2025 Frontier Airlines · F9 3172 Depart at 8:50pm from Denver (DEN) Fly for 2h 20m Arrive at 12:10am in Chicago (ORD)
US$90

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Mon Apr 14th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 12 nights

Mon Apr 14th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$90

6:40am - 8:30am
Wed Apr 2nd 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

9:08pm - 12:37am
Mon Apr 7th 2025

2h 29m
Denver (DEN) → Chicago (ORD)

Direct

Wed Apr 2nd 2025 Frontier Airlines · F9 3173 Depart at 6:40am from Chicago (ORD) Fly for 2h 50m Arrive at 8:30am in Denver (DEN)

Stay in Denver for 5 nights

Mon Apr 7th 2025 Frontier Airlines · F9 3172 Depart at 9:08pm from Denver (DEN) Fly for 2h 29m Arrive at 12:37am in Chicago (ORD)
US$609

8:45am - 10:35am
Wed Mar 26th 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

1:25pm - 4:51pm
Sat Mar 29th 2025

2h 26m
Denver (DEN) → Chicago (ORD)

Direct

Wed Mar 26th 2025 United Airlines · UA 1599 Depart at 8:45am from Chicago (ORD) Fly for 2h 50m Arrive at 10:35am in Denver (DEN)

Stay in Denver for 3 nights

Sat Mar 29th 2025 United Airlines · UA 617 Depart at 1:25pm from Denver (DEN) Fly for 2h 26m Arrive at 4:51pm in Chicago (ORD)
US$668

7:10am - 9:00am
Tue Mar 25th 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

1:25pm - 4:51pm
Sat Mar 29th 2025

2h 26m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 United Airlines · UA 604 Depart at 7:10am from Chicago (ORD) Fly for 2h 50m Arrive at 9:00am in Denver (DEN)

Stay in Denver for 4 nights

Sat Mar 29th 2025 United Airlines · UA 617 Depart at 1:25pm from Denver (DEN) Fly for 2h 26m Arrive at 4:51pm in Chicago (ORD)
US$668

6:03pm - 7:53pm
Tue Mar 25th 2025

2h 50m
Chicago (ORD) → Denver (DEN)

Direct

1:25pm - 4:51pm
Sat Mar 29th 2025

2h 26m
Denver (DEN) → Chicago (ORD)

Direct

Tue Mar 25th 2025 United Airlines · UA 2654 Depart at 6:03pm from Chicago (ORD) Fly for 2h 50m Arrive at 7:53pm in Denver (DEN)

Stay in Denver for 3 nights

Sat Mar 29th 2025 United Airlines · UA 617 Depart at 1:25pm from Denver (DEN) Fly for 2h 26m Arrive at 4:51pm in Chicago (ORD)
US$700

5:00am - 6:48am
Mon Mar 24th 2025

2h 48m
Chicago (ORD) → Denver (DEN)

Direct

1:25pm - 4:51pm
Sat Mar 29th 2025

2h 26m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 24th 2025 United Airlines · UA 2666 Depart at 5:00am from Chicago (ORD) Fly for 2h 48m Arrive at 6:48am in Denver (DEN)

Stay in Denver for 5 nights

Sat Mar 29th 2025 United Airlines · UA 617 Depart at 1:25pm from Denver (DEN) Fly for 2h 26m Arrive at 4:51pm in Chicago (ORD)
US$700

5:00am - 6:48am
Sat Mar 29th 2025

2h 48m
Chicago (ORD) → Denver (DEN)

Direct

1:25pm - 4:51pm
Sat Mar 29th 2025

2h 26m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 United Airlines · UA 2666 Depart at 5:00am from Chicago (ORD) Fly for 2h 48m Arrive at 6:48am in Denver (DEN)

Stay in Denver for 0 nights

Sat Mar 29th 2025 United Airlines · UA 617 Depart at 1:25pm from Denver (DEN) Fly for 2h 26m Arrive at 4:51pm in Chicago (ORD)
US$700

5:00am - 6:48am
Mon Mar 24th 2025

2h 48m
Chicago (ORD) → Denver (DEN)

Direct

8:55pm - 12:23am
Sat Mar 29th 2025

2h 28m
Denver (DEN) → Chicago (ORD)

Direct

Mon Mar 24th 2025 United Airlines · UA 2666 Depart at 5:00am from Chicago (ORD) Fly for 2h 48m Arrive at 6:48am in Denver (DEN)

Stay in Denver for 5 nights

Sat Mar 29th 2025 United Airlines · UA 377 Depart at 8:55pm from Denver (DEN) Fly for 2h 28m Arrive at 12:23am in Chicago (ORD)
US$700

5:00am - 6:48am
Sat Mar 29th 2025

2h 48m
Chicago (ORD) → Denver (DEN)

Direct

8:55pm - 12:23am
Sat Mar 29th 2025

2h 28m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 United Airlines · UA 2666 Depart at 5:00am from Chicago (ORD) Fly for 2h 48m Arrive at 6:48am in Denver (DEN)

Stay in Denver for 0 nights

Sat Mar 29th 2025 United Airlines · UA 377 Depart at 8:55pm from Denver (DEN) Fly for 2h 28m Arrive at 12:23am in Chicago (ORD)
US$828

5:00am - 6:48am
Sat Mar 29th 2025

2h 48m
Chicago (ORD) → Denver (DEN)

Direct

7:23pm - 10:51pm
Sat Mar 29th 2025

2h 28m
Denver (DEN) → Chicago (ORD)

Direct

Sat Mar 29th 2025 United Airlines · UA 2666 Depart at 5:00am from Chicago (ORD) Fly for 2h 48m Arrive at 6:48am in Denver (DEN)

Stay in Denver for 0 nights

Sat Mar 29th 2025 United Airlines · UA 2258 Depart at 7:23pm from Denver (DEN) Fly for 2h 28m Arrive at 10:51pm in Chicago (ORD)
US$860

5:00am - 6:48am
Sun Mar 23rd 2025

2h 48m
Chicago (ORD) → Denver (DEN)

Direct

1:25pm - 4:51pm
Sat Mar 29th 2025

2h 26m
Denver (DEN) → Chicago (ORD)

Direct

Sun Mar 23rd 2025 United Airlines · UA 2666 Depart at 5:00am from Chicago (ORD) Fly for 2h 48m Arrive at 6:48am in Denver (DEN)

Stay in Denver for 6 nights

Sat Mar 29th 2025 United Airlines · UA 617 Depart at 1:25pm from Denver (DEN) Fly for 2h 26m Arrive at 4:51pm in Chicago (ORD)

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 Chicago to Denver (ORD to DEN)

Sarah Belizaire

John Ford

Roaming Sonaa

Andy Travels

Travel With Bender

Wesley Mergard

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