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Flights from Washington to Seattle (WAS to SEA)

Discover alternate routes & cheap one way flights from Washington to Seattle (WAS to SEA) within a departure date range.

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  • USD 128
    Spirit Airlines
    7:46am - 4:15pm
    Wed Aug 7th
    11h 29m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Spirit Airlines · NK 141 Depart at 7:46am from Washington, D.C. (BWI) Fly for 5h 29m Arrive at 10:15am in Los Angeles (LAX)

    Layover in Los Angeles for 3h 8m

    Wed Aug 7th 2024 Spirit Airlines · NK 358 Depart at 1:23pm from Los Angeles (LAX) Fly for 2h 52m Arrive at 4:15pm in Seattle (SEA)

  • USD 183
    United Airlines
    10:10pm - 12:54am
    Wed Aug 7th
    5h 44m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 United Airlines · UA 1893 Depart at 10:10pm from Washington, D.C. (IAD) Fly for 5h 44m Arrive at 12:54am in Seattle (SEA)

  • USD 183
    United Airlines
    6:15pm - 12:42am
    Wed Aug 7th
    9h 27m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 2344 Depart at 6:15pm from Washington, D.C. (IAD) Fly for 5h 41m Arrive at 8:56pm in San Francisco (SFO)

    Layover in San Francisco for 1h 39m

    Wed Aug 7th 2024 United Airlines · UA 1971 Depart at 10:35pm from San Francisco (SFO) Fly for 2h 7m Arrive at 12:42am in Seattle (SEA)

  • USD 192
    Spirit Airlines
    2:29pm - 8:00pm
    Wed Aug 7th
    8h 31m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Spirit Airlines · NK 1179 Depart at 2:29pm from Washington, D.C. (BWI) Fly for 5h 1m Arrive at 4:30pm in Las Vegas (LAS)

    Layover in Las Vegas for 0h 50m

    Wed Aug 7th 2024 Spirit Airlines · NK 1363 Depart at 5:20pm from Las Vegas (LAS) Fly for 2h 40m Arrive at 8:00pm in Seattle (SEA)

  • USD 192
    Spirit Airlines
    2:29pm - 12:35am
    Wed Aug 7th
    13h 6m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Spirit Airlines · NK 1179 Depart at 2:29pm from Washington, D.C. (BWI) Fly for 5h 1m Arrive at 4:30pm in Las Vegas (LAS)

    Layover in Las Vegas for 5h 26m

    Wed Aug 7th 2024 Spirit Airlines · NK 421 Depart at 9:56pm from Las Vegas (LAS) Fly for 2h 39m Arrive at 12:35am in Seattle (SEA)

  • USD 195
    Sun Country Airlines
    11:39am - 4:59pm
    Wed Aug 7th
    8h 20m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Sun Country Airlines · SY 194 Depart at 11:39am from Washington, D.C. (BWI) Fly for 2h 45m Arrive at 1:24pm in Minneapolis (MSP)

    Layover in Minneapolis for 1h 43m

    Wed Aug 7th 2024 Sun Country Airlines · SY 285 Depart at 3:07pm from Minneapolis (MSP) Fly for 3h 52m Arrive at 4:59pm in Seattle (SEA)

  • USD 205
    Sun Country Airlines
    11:24am - 4:59pm
    Wed Aug 7th
    8h 35m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Sun Country Airlines · SY 668 Depart at 11:24am from Washington, D.C. (IAD) Fly for 2h 51m Arrive at 1:15pm in Minneapolis (MSP)

    Layover in Minneapolis for 1h 52m

    Wed Aug 7th 2024 Sun Country Airlines · SY 285 Depart at 3:07pm from Minneapolis (MSP) Fly for 3h 52m Arrive at 4:59pm in Seattle (SEA)

  • USD 217
    Alaska Airlines
    4:16pm - 11:44pm
    Wed Aug 7th
    10h 28m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 507 Depart at 4:16pm from Washington, D.C. (IAD) Fly for 5h 18m Arrive at 6:34pm in San Diego (SAN)

    Layover in San Diego for 2h 16m

    Wed Aug 7th 2024 Alaska Airlines · AS 1199 Depart at 8:50pm from San Diego (SAN) Fly for 2h 54m Arrive at 11:44pm in Seattle (SEA)

  • USD 249
    United Airlines
    5:20pm - 8:07pm
    Wed Aug 7th
    5h 47m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 United Airlines · UA 326 Depart at 5:20pm from Washington, D.C. (IAD) Fly for 5h 47m Arrive at 8:07pm in Seattle (SEA)

  • USD 252
    Alaska Airlines
    7:10am - 8:34pm
    Wed Aug 7th
    16h 24m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 277 Depart at 7:10am from Washington, D.C. (IAD) Fly for 5h 23m Arrive at 9:33am in Los Angeles (LAX)

    Layover in Los Angeles for 8h 12m

    Wed Aug 7th 2024 Alaska Airlines · AS 1301 Depart at 5:45pm from Los Angeles (LAX) Fly for 2h 49m Arrive at 8:34pm in Seattle (SEA)

  • USD 252
    Alaska Airlines
    7:10am - 9:38pm
    Wed Aug 7th
    17h 28m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 277 Depart at 7:10am from Washington, D.C. (IAD) Fly for 5h 23m Arrive at 9:33am in Los Angeles (LAX)

    Layover in Los Angeles for 9h 16m

    Wed Aug 7th 2024 Alaska Airlines · AS 1305 Depart at 6:49pm from Los Angeles (LAX) Fly for 2h 49m Arrive at 9:38pm in Seattle (SEA)

  • USD 252
    Alaska Airlines
    7:10am - 10:48pm
    Wed Aug 7th
    18h 38m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 277 Depart at 7:10am from Washington, D.C. (IAD) Fly for 5h 23m Arrive at 9:33am in Los Angeles (LAX)

    Layover in Los Angeles for 10h 26m

    Wed Aug 7th 2024 Alaska Airlines · AS 1093 Depart at 7:59pm from Los Angeles (LAX) Fly for 2h 49m Arrive at 10:48pm in Seattle (SEA)

  • USD 252
    Alaska Airlines
    7:10am - 11:59pm
    Wed Aug 7th
    19h 49m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 277 Depart at 7:10am from Washington, D.C. (IAD) Fly for 5h 23m Arrive at 9:33am in Los Angeles (LAX)

    Layover in Los Angeles for 11h 47m

    Wed Aug 7th 2024 Alaska Airlines · AS 1055 Depart at 9:20pm from Los Angeles (LAX) Fly for 2h 39m Arrive at 11:59pm in Seattle (SEA)

  • USD 254
    United Airlines
    2:59pm - 9:06pm
    Wed Aug 7th
    9h 7m
    Washington, D.C. (DCA) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 1066 Depart at 2:59pm from Washington, D.C. (DCA) Fly for 3h 9m Arrive at 5:08pm in Houston (IAH)

    Layover in Houston for 1h 15m

    Wed Aug 7th 2024 United Airlines · UA 2384 Depart at 6:23pm from Houston (IAH) Fly for 4h 43m Arrive at 9:06pm in Seattle (SEA)

  • USD 254
    United Airlines
    3:00pm - 9:09pm
    Wed Aug 7th
    9h 9m
    Washington, D.C. (DCA) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 2649 Depart at 3:00pm from Washington, D.C. (DCA) Fly for 2h 13m Arrive at 4:13pm in Chicago (ORD)

    Layover in Chicago for 2h 17m

    Wed Aug 7th 2024 United Airlines · UA 2379 Depart at 6:30pm from Chicago (ORD) Fly for 4h 39m Arrive at 9:09pm in Seattle (SEA)

  • USD 254
    United Airlines
    12:00pm - 6:42pm
    Wed Aug 7th
    9h 42m
    Washington, D.C. (DCA) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 587 Depart at 12:00pm from Washington, D.C. (DCA) Fly for 2h 10m Arrive at 1:10pm in Chicago (ORD)

    Layover in Chicago for 2h 54m

    Wed Aug 7th 2024 United Airlines · UA 2278 Depart at 4:04pm from Chicago (ORD) Fly for 4h 38m Arrive at 6:42pm in Seattle (SEA)

  • USD 254
    United Airlines
    2:59pm - 10:53pm
    Wed Aug 7th
    10h 54m
    Washington, D.C. (DCA) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 1066 Depart at 2:59pm from Washington, D.C. (DCA) Fly for 3h 9m Arrive at 5:08pm in Houston (IAH)

    Layover in Houston for 3h 2m

    Wed Aug 7th 2024 United Airlines · UA 2650 Depart at 8:10pm from Houston (IAH) Fly for 4h 43m Arrive at 10:53pm in Seattle (SEA)

  • USD 265
    United Airlines
    5:32pm - 10:45pm
    Wed Aug 7th
    8h 13m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 1943 Depart at 5:32pm from Washington, D.C. (IAD) Fly for 4h 8m Arrive at 7:40pm in Denver (DEN)

    Layover in Denver for 1h 10m

    Wed Aug 7th 2024 United Airlines · UA 2651 Depart at 8:50pm from Denver (DEN) Fly for 2h 55m Arrive at 10:45pm in Seattle (SEA)

  • USD 272
    United Airlines
    6:45pm - 12:42am
    Wed Aug 7th
    8h 57m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 1362 Depart at 6:45pm from Washington, D.C. (BWI) Fly for 5h 45m Arrive at 9:30pm in San Francisco (SFO)

    Layover in San Francisco for 1h 5m

    Wed Aug 7th 2024 United Airlines · UA 1971 Depart at 10:35pm from San Francisco (SFO) Fly for 2h 7m Arrive at 12:42am in Seattle (SEA)

  • USD 272
    United Airlines
    4:17pm - 10:45pm
    Wed Aug 7th
    9h 28m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 2012 Depart at 4:17pm from Washington, D.C. (BWI) Fly for 4h 1m Arrive at 6:18pm in Denver (DEN)

    Layover in Denver for 2h 32m

    Wed Aug 7th 2024 United Airlines · UA 2651 Depart at 8:50pm from Denver (DEN) Fly for 2h 55m Arrive at 10:45pm in Seattle (SEA)

  • USD 276
    United Airlines
    1:10pm - 6:42pm
    Wed Aug 7th
    8h 32m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 2331 Depart at 1:10pm from Washington, D.C. (IAD) Fly for 2h 10m Arrive at 2:20pm in Chicago (ORD)

    Layover in Chicago for 1h 44m

    Wed Aug 7th 2024 United Airlines · UA 2278 Depart at 4:04pm from Chicago (ORD) Fly for 4h 38m Arrive at 6:42pm in Seattle (SEA)

  • USD 278
    United Airlines
    6:30am - 12:17pm
    Wed Aug 7th
    8h 47m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 667 Depart at 6:30am from Washington, D.C. (IAD) Fly for 5h 23m Arrive at 8:53am in Los Angeles (LAX)

    Layover in Los Angeles for 0h 42m

    Wed Aug 7th 2024 United Airlines · UA 2013 Depart at 9:35am from Los Angeles (LAX) Fly for 2h 42m Arrive at 12:17pm in Seattle (SEA)

  • USD 284
    Alaska Airlines
    7:10am - 7:44pm
    Wed Aug 7th
    15h 34m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 277 Depart at 7:10am from Washington, D.C. (IAD) Fly for 5h 23m Arrive at 9:33am in Los Angeles (LAX)

    Layover in Los Angeles for 7h 22m

    Wed Aug 7th 2024 Alaska Airlines · AS 1222 Depart at 4:55pm from Los Angeles (LAX) Fly for 2h 49m Arrive at 7:44pm in Seattle (SEA)

  • USD 293
    Alaska Airlines
    5:50pm - 8:50pm
    Wed Aug 7th
    6h 0m
    Washington, D.C. (DCA) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 3 Depart at 5:50pm from Washington, D.C. (DCA) Fly for 6h 0m Arrive at 8:50pm in Seattle (SEA)

  • USD 299
    Alaska Airlines
    5:43pm - 11:59pm
    Wed Aug 7th
    9h 16m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Alaska Airlines · AS 309 Depart at 5:43pm from Washington, D.C. (IAD) Fly for 5h 27m Arrive at 8:10pm in Los Angeles (LAX)

    Layover in Los Angeles for 1h 10m

    Wed Aug 7th 2024 Alaska Airlines · AS 1055 Depart at 9:20pm from Los Angeles (LAX) Fly for 2h 39m Arrive at 11:59pm in Seattle (SEA)

  • USD 307
    Alaska Airlines
    11:20am - 2:00pm
    Wed Aug 7th
    5h 40m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 583 Depart at 11:20am from Washington, D.C. (IAD) Fly for 5h 40m Arrive at 2:00pm in Seattle (SEA)

  • USD 307
    Alaska Airlines
    7:02am - 9:44am
    Wed Aug 7th
    5h 42m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 499 Depart at 7:02am from Washington, D.C. (IAD) Fly for 5h 42m Arrive at 9:44am in Seattle (SEA)

  • USD 307
    Alaska Airlines
    6:37pm - 9:30pm
    Wed Aug 7th
    5h 53m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 406 Depart at 6:37pm from Washington, D.C. (IAD) Fly for 5h 53m Arrive at 9:30pm in Seattle (SEA)

  • USD 307
    United Airlines
    12:46pm - 9:06pm
    Wed Aug 7th
    11h 20m
    Washington, D.C. (DCA) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 742 Depart at 12:46pm from Washington, D.C. (DCA) Fly for 3h 9m Arrive at 2:55pm in Houston (IAH)

    Layover in Houston for 3h 28m

    Wed Aug 7th 2024 United Airlines · UA 2384 Depart at 6:23pm from Houston (IAH) Fly for 4h 43m Arrive at 9:06pm in Seattle (SEA)

  • USD 309
    United Airlines
    8:43am - 11:30am
    Wed Aug 7th
    5h 47m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 United Airlines · UA 1963 Depart at 8:43am from Washington, D.C. (IAD) Fly for 5h 47m Arrive at 11:30am in Seattle (SEA)

  • USD 316
    United Airlines
    4:10pm - 10:45pm
    Wed Aug 7th
    9h 35m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 1926 Depart at 4:10pm from Washington, D.C. (IAD) Fly for 4h 4m Arrive at 6:14pm in Denver (DEN)

    Layover in Denver for 2h 36m

    Wed Aug 7th 2024 United Airlines · UA 2651 Depart at 8:50pm from Denver (DEN) Fly for 2h 55m Arrive at 10:45pm in Seattle (SEA)

  • USD 318
    United Airlines
    12:40pm - 3:27pm
    Wed Aug 7th
    5h 47m
    Washington, D.C. (IAD) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 United Airlines · UA 1932 Depart at 12:40pm from Washington, D.C. (IAD) Fly for 5h 47m Arrive at 3:27pm in Seattle (SEA)

  • USD 318
    United Airlines
    6:37am - 11:24am
    Wed Aug 7th
    7h 47m
    Washington, D.C. (BWI) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 461 Depart at 6:37am from Washington, D.C. (BWI) Fly for 2h 11m Arrive at 7:48am in Chicago (ORD)

    Layover in Chicago for 0h 57m

    Wed Aug 7th 2024 United Airlines · UA 1705 Depart at 8:45am from Chicago (ORD) Fly for 4h 39m Arrive at 11:24am in Seattle (SEA)

  • USD 326
    United Airlines
    5:33pm - 10:22pm
    Wed Aug 7th
    7h 49m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 2727 Depart at 5:33pm from Washington, D.C. (IAD) Fly for 2h 22m Arrive at 6:55pm in Chicago (ORD)

    Layover in Chicago for 0h 47m

    Wed Aug 7th 2024 United Airlines · UA 630 Depart at 7:42pm from Chicago (ORD) Fly for 4h 40m Arrive at 10:22pm in Seattle (SEA)

  • USD 339
    United Airlines
    12:46pm - 7:23pm
    Wed Aug 7th
    9h 37m
    Washington, D.C. (DCA) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 United Airlines · UA 742 Depart at 12:46pm from Washington, D.C. (DCA) Fly for 3h 9m Arrive at 2:55pm in Houston (IAH)

    Layover in Houston for 1h 46m

    Wed Aug 7th 2024 United Airlines · UA 1939 Depart at 4:41pm from Houston (IAH) Fly for 4h 42m Arrive at 7:23pm in Seattle (SEA)

  • USD 347
    Alaska Airlines
    8:00am - 10:49am
    Wed Aug 7th
    5h 49m
    Washington, D.C. (DCA) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 1 Depart at 8:00am from Washington, D.C. (DCA) Fly for 5h 49m Arrive at 10:49am in Seattle (SEA)

  • USD 381
    Alaska Airlines
    7:08am - 9:54am
    Wed Aug 7th
    5h 46m
    Washington, D.C. (BWI) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 349 Depart at 7:08am from Washington, D.C. (BWI) Fly for 5h 46m Arrive at 9:54am in Seattle (SEA)

  • USD 381
    Alaska Airlines
    6:59pm - 9:49pm
    Wed Aug 7th
    5h 50m
    Washington, D.C. (BWI) → Seattle (SEA)
    Direct

    Wed Aug 7th 2024 Alaska Airlines · AS 379 Depart at 6:59pm from Washington, D.C. (BWI) Fly for 5h 50m Arrive at 9:49pm in Seattle (SEA)

  • USD 2165
    Turkish Airlines
    4:40pm - 4:45pm
    Wed Aug 7th
    27h 5m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Turkish Airlines · TK 188 Depart at 4:40pm from Washington, D.C. (IAD) Fly for 10h 0m Arrive at 9:40am in Istanbul (IST)

    Layover in Istanbul for 4h 40m

    Thu Aug 8th 2024 Turkish Airlines · TK 203 Depart at 2:20pm from Istanbul (IST) Fly for 12h 25m Arrive at 4:45pm in Seattle (SEA)

  • USD 2208
    Turkish Airlines
    9:50pm - 4:45pm
    Wed Aug 7th
    45h 55m
    Washington, D.C. (IAD) → Seattle (SEA)
    1 Stop

    Wed Aug 7th 2024 Turkish Airlines · TK 8 Depart at 9:50pm from Washington, D.C. (IAD) Fly for 10h 15m Arrive at 3:05pm in Istanbul (IST)

    Layover in Istanbul for 23h 15m

    Fri Aug 9th 2024 Turkish Airlines · TK 203 Depart at 2:20pm from Istanbul (IST) Fly for 12h 25m Arrive at 4:45pm in Seattle (SEA)

@sarahbb1
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

@eyupitsjohn
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

@andy_travels
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 👍

@travelwitbender
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! 💪

Explore Flight Options

Cheap Flight Search Tips

Tips to help you find the cheapest flights from Washington to Seattle (WAS to SEA).

  • Book 45-90 days before your departure date.
  • Fly during weekdays (Monday-Thursday).
  • Airfare Sales: Airlines sometimes offer huge discounts and since we take a bottom-up approach these flights will appear first in the results, so check back regularly because they don't usually last long.

Why I Built FlightList

❝As someone who works remotely & travels frequently, I always book one way flights and I'm flexible on my departure dates. I look for the best deals. Most sites require you to enter a specific departure date and clutter the page with uneccessary options, images and ads. I want something simple and minimal which allows me to search by departure date range & display a list of flights with the ability to filter according to my needs. So, I built FlightList to solve my own problem & help other travelers who may have the same frustration. It's how I imagine a flight booking site should be.❞

- Hans Desjarlais, Founder & Creator Hans Desjarlais