HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$144+ Cheap flights from District of Columbia to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SEA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from District of Columbia to Seattle with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from District of Columbia to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from District of Columbia (USDC) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$276
(Gotogate)

One-way from

$144
(United Airlines)

Good round-trip deal

$387 or less

Good one-way deal

$193 or less
From District of Columbia to Seattle/Tacoma Intl
Search Deals
One-way flight from District of Columbia to Seattle/Tacoma Intl
Search Deals
Price to beat on a round-trip flight from District of Columbia to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from District of Columbia to Seattle/Tacoma Intl.
Search Deals

Find flight deals from District of Columbia to Seattle

Cheapest flights from District of Columbia to Seattle
Explore the most affordable flight options available from District of Columbia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/287:00 amDCA - SEA
1 stop8h 02mFrontier
Mon 3/312:02 pmSEA - DCA
1 stop18h 57mFrontier
Deal found 1/20$276
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:43 amIAD - SEA
Nonstop6h 02mDelta
Tue 4/110:15 pmSEA - IAD
Nonstop5h 04mDelta
Deal found 1/21$277
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/114:40 pmDCA - SEA
Nonstop6h 01mDelta
Sat 3/157:23 amSEA - DCA
Nonstop5h 07mDelta
Deal found 1/21$277
This Orbitz deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/56:00 pmDCA - SEA
1 stop9h 44mMultiple Airlines
Sat 5/101:50 pmSEA - DCA
Nonstop5h 09mMultiple Airlines
Deal found 1/21$279
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/156:17 pmIAD - SEA
1 stop9h 38mUnited Airlines
Tue 2/188:10 amSEA - IAD
Nonstop4h 59mUnited Airlines
Deal found 1/21$287
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/45:18 pmIAD - SEA
1 stop19h 05mAlaska Airlines
Thu 3/69:40 pmSEA - IAD
Nonstop4h 52mAlaska Airlines
Deal found 1/21$292
This United Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/155:59 pmDCA - SEA
1 stop9h 56mUnited Airlines
Tue 2/1811:20 pmSEA - DCA
1 stop7h 34mUnited Airlines
Deal found 1/21$297
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/153:12 pmDCA - SEA
1 stop9h 09mAmerican Airlines
Thu 2/2012:25 amSEA - DCA
1 stop8h 34mAmerican Airlines
Deal found 1/21$302
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/115:00 amIAD - SEA
1 stop10h 41mAmerican Airlines
Wed 2/2610:21 pmSEA - IAD
1 stop7h 21mAmerican Airlines
Deal found 1/21$303
This eDestinos deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1112:37 pmIAD - SEA
2 stops47h 58mFrontier
Wed 2/261:36 pmSEA - IAD
2 stops25h 41mFrontier
Deal found 1/21$306
This Alaska Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/198:00 amDCA - SEA
Nonstop6h 06mAlaska Airlines
Tue 2/252:05 pmSEA - DCA
Nonstop4h 54mAlaska Airlines
Deal found 1/21$317
This Cheapflightsfares deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2512:40 pmIAD - SEA
1 stop13h 04mSun Country Air
Fri 7/411:59 pmSEA - IAD
1 stop8h 44mSun Country Air
Deal found 1/21$329

Find flights from District of Columbia to Seattle within your budget

Customize your flight search to find flights from District of Columbia to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Fri 3/28

7:00 am-12:02 pm

1 stop8h 02m

Seattle/Tacoma Intl

Mon 3/31

2:02 pm-11:59 am

1 stop18h 57m

$276

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Wed 3/26

7:43 am-10:45 am

Nonstop6h 02m

Seattle/Tacoma Intl

Tue 4/1

10:15 pm-6:19 am

Nonstop5h 04m

$277

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Tue 3/11

4:40 pm-7:41 pm

Nonstop6h 01m

Seattle/Tacoma Intl

Sat 3/15

7:23 am-3:30 pm

Nonstop5h 07m

$277

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Mon 5/5

6:00 pm-12:44 am

1 stop9h 44m

Seattle/Tacoma Intl

Wed 5/7

1:50 pm-9:59 pm

Nonstop5h 09m

$279

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Sat 2/15

6:17 pm-12:55 am

1 stop9h 38m

Seattle/Tacoma Intl

Tue 2/18

8:10 am-4:09 pm

Nonstop4h 59m

$287

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 3/4

5:18 pm-9:23 am

1 stop19h 05m

Seattle/Tacoma Intl

Thu 3/6

9:40 pm-5:32 am

Nonstop4h 52m

$292

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Sat 2/15

5:59 pm-12:55 am

1 stop9h 56m

Seattle/Tacoma Intl

Tue 2/18

11:20 pm-9:54 am

1 stop7h 34m

$297

Washington, D.C.Seattle

DCA - SEA

DCASEA

Washington, D.C. Reagan-National

Sat 2/15

3:12 pm-9:21 pm

1 stop9h 09m

Seattle/Tacoma Intl

Thu 2/20

12:25 am-11:59 am

1 stop8h 34m

$302

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 2/11

5:00 am-12:41 pm

1 stop10h 41m

Seattle/Tacoma Intl

Wed 2/26

10:21 pm-8:42 am

1 stop7h 21m

$303

Washington, D.C.Seattle

IAD - SEA

IADSEA

Washington, D.C. Dulles Intl

Tue 2/11

12:37 pm-9:35 am

2 stops47h 58m

Seattle/Tacoma Intl

Wed 2/26

1:36 pm-6:17 pm

2 stops25h 41m

$306

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 32 results
1
2
3
4

Best time to book a flight from District of Columbia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from District of Columbia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from District of Columbia to Seattle

Get recent, data-driven insights about flights from District of Columbia to Seattle including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from District of Columbia to Seattle?

Currently, January is the cheapest month in which you can book a flight from District of Columbia to Seattle (average of $238). Flying from District of Columbia to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DC to SEA?

Find hourly flight availability from District of Columbia to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from District of Columbia to Seattle as you normally would.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated January 21, 2025.
See what other customers who have flown with Delta, United Airlines and Southwest from District of Columbia to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

JetBlue
7.4
Good
3,201 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Crew

8.7

Overall

8.1

Food

7.2

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from District of Columbia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from District of Columbia?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from District of Columbia. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • How popular is this District of Columbia to Seattle flight route?

    This flight path from District of Columbia to Seattle/Tacoma Intl was viewed by 21 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from District of Columbia to Seattle one-way?

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $144. However, be on the lookout for offers from Delta and Alaska Airlines, as they are both options that can get you from District of Columbia to Seattle for a low price.

  • What are the most reliable airlines from District of Columbia to Seattle?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from District of Columbia to Seattle on time: Air Tahiti Nui (82%), Hawaiian Airlines (77%), Alaska Airlines (76%).

  • What are the cheapest flights from District of Columbia to Seattle?

    The cheapest flight price from District of Columbia to Seattle is $149. On average you can expect to pay $1,045. The most popular route, (Washington, D.C. Reagan-National - Seattle/Tacoma Intl), can usually be booked for $140.

  • Can I find deals for flights from District of Columbia to Seattle that include hotel bookings?

    Yes. In addition to deals on District of Columbia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from District of Columbia to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from District of Columbia to Seattle.

  • Can I find deals for business class flights from District of Columbia to Seattle?

    Yes. Cheapflights offers flight deals from District of Columbia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from District of Columbia to Seattle?

    Currently, January is the cheapest month in which you can book a flight from District of Columbia to Seattle (average of $238). Flying from District of Columbia to Seattle in July is currently the most expensive (average of $411). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near District of Columbia?

Book flights to District of Columbia if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for District of Columbia to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Seattle flights
Dallas/Fort Worth to Seattle flights
John F Kennedy Intl to Seattle flights
Newark to Seattle flights
O'Hare Intl to Seattle flights
San Francisco to Seattle flights
Minneapolis to Seattle flights
Reagan-National to Seattle flights
Dulles Intl to Seattle flights
Ontario to Seattle flights
Denver to Seattle flights
Los Angeles to Portland flights
Atlanta to Seattle flights
Hobby to Seattle flights
Boston to Seattle flights
San Diego to Seattle flights
Santa Ana to Seattle flights
Baltimore to Seattle flights
LaGuardia to Seattle flights
Burbank to Seattle flights
Sky Harbor Intl to Seattle flights
Detroit to Seattle flights
Las Vegas to Seattle flights
Orlando to Seattle flights
George Bush Intcntl to Seattle flights
San Jose to Seattle flights
Tampa to Seattle flights
Cincinnati to Seattle flights
Raleigh to Seattle flights
Oakland to Seattle flights
Austin to Seattle flights
Sacramento to Seattle flights
O'Hare Intl to Portland flights
Newark to Portland flights
Philadelphia to Seattle flights
John F Kennedy Intl to Portland flights
Salt Lake City to Seattle flights
San Francisco to Portland flights
Minneapolis to Portland flights
Honolulu to Seattle flights
Dallas/Fort Worth to Portland flights
Kansas City to Seattle flights
Charlotte to Seattle flights
Los Angeles to Everett flights
Denver to Portland flights
Milwaukee to Seattle flights
Midway to Seattle flights
Fort Lauderdale to Seattle flights
Miami to Seattle flights
Dulles Intl to Portland flights

Top 9 airlines flying from District of Columbia to Seattle

Discover the top 9 airlines that operate flights from District of Columbia to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$248FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$144Average$378FlexibilityNo cancel feeOn-time83%
Spirit AirlinesCheapest$164Average$263FlexibilityNo cancel feeOn-time65%
DeltaCheapest$185Average$414FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$216Average$427FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$227Average$502FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$249Average$364FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$273Average$461FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$296Average$546FlexibilityNo cancel feeOn-time63%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.