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District of Columbia

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

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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BWI
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from Seattle to District of Columbia

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to District of Columbia (USDC). 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 17, 2025.

Round-trip from

$287
(Kiwi.com)

One-way from

$144
(Delta)
From Seattle/Tacoma Intl to District of Columbia
Search Deals
One-way flight from Seattle/Tacoma Intl to District of Columbia
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Find flight deals from Seattle to District of Columbia

Cheapest flights from Seattle to District of Columbia
Explore the most affordable flight options available from Seattle to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 17, 2025.

This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/151:36 pmSEA - DCA
1 stop19h 27mFrontier
Sat 2/227:00 amDCA - SEA
1 stop8h 46mFrontier
Deal found 1/16$287
This Alaska Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 2/69:54 amSEA - IAD
Nonstop5h 03mAlaska Airlines
Sun 2/96:57 pmIAD - SEA
Nonstop6h 03mAlaska Airlines
Deal found 1/16$287
This United Airlines deal was found by Cheapflights users on 1/15. 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.
Wed 2/57:00 amSEA - IAD
1 stop10h 40mUnited Airlines
Sun 2/95:30 pmIAD - SEA
Nonstop6h 01mUnited Airlines
Deal found 1/15$288
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Tue 2/1111:17 pmSEA - DCA
1 stop8h 14mUnited Airlines
Wed 2/123:30 pmDCA - SEA
1 stop10h 23mUnited Airlines
Deal found 1/16$292
This American Airlines deal was found by Cheapflights users on 1/16. 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.
Fri 2/2112:25 amSEA - DCA
1 stop8h 34mAmerican Airlines
Wed 2/265:00 amDCA - SEA
1 stop9h 04mAmerican Airlines
Deal found 1/16$297
This American Airlines deal was found by Cheapflights users on 1/16. 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 2/89:45 amSEA - IAD
1 stop9h 56mAmerican Airlines
Sat 2/155:13 pmIAD - SEA
1 stop9h 10mAmerican Airlines
Deal found 1/16$298
This Delta deal was found by Cheapflights users on 1/16. 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.
Sat 2/226:15 amSEA - DCA
1 stop14h 05mDelta
Wed 2/266:05 amDCA - SEA
1 stop13h 49mDelta
Deal found 1/16$305
This Delta deal was found by Cheapflights users on 1/15. 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 2/127:10 amSEA - IAD
Nonstop5h 00mDelta
Tue 2/184:23 pmIAD - SEA
Nonstop6h 01mDelta
Deal found 1/15$307
This Travelocity deal was found by Cheapflights users on 1/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/198:15 amSEA - DCA
Nonstop5h 09mMultiple Airlines
Wed 2/267:00 amDCA - SEA
1 stop8h 36mMultiple Airlines
Deal found 1/16$309
This JetBlue deal was found by Cheapflights users on 1/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2411:48 pmSEA - DCA
1 stop8h 56mJetBlue
Mon 3/33:50 pmDCA - SEA
1 stop9h 48mJetBlue
Deal found 1/16$311
This Alaska Airlines deal was found by Cheapflights users on 1/16. 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 2/252:05 pmSEA - DCA
Nonstop4h 54mAlaska Airlines
Tue 3/48:00 amDCA - SEA
Nonstop6h 06mAlaska Airlines
Deal found 1/16$317
This Cheapflightsfares deal was found by Cheapflights users on 1/15. 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 5/286:33 pmSEA - IAD
1 stop14h 14mSun Country Air
Fri 5/3012:45 pmIAD - SEA
1 stop13h 06mSun Country Air
Deal found 1/15$329

Find flights from Seattle to District of Columbia within your budget

Customize your flight search to find flights from Seattle to District of Columbia 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 17, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Sun 3/9

7:23 am-3:29 pm

Nonstop5h 06m

Washington, D.C. Reagan-National

Wed 3/12

4:40 pm-7:41 pm

Nonstop6h 01m

$287

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 2/6

9:54 am-5:57 pm

Nonstop5h 03m

Washington, D.C. Dulles Intl

Mon 2/10

6:57 pm-10:00 pm

Nonstop6h 03m

$287

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 2/5

7:00 am-8:40 pm

1 stop10h 40m

Washington, D.C. Dulles Intl

Sun 2/9

5:30 pm-8:31 pm

Nonstop6h 01m

$288

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Fri 4/11

1:56 pm-11:59 am

1 stop19h 03m

Washington, D.C. Reagan-National

Wed 4/16

6:00 pm-11:56 am

1 stop20h 56m

$289

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Tue 2/11

11:17 pm-10:31 am

1 stop8h 14m

Washington, D.C. Reagan-National

Wed 2/12

3:30 pm-10:53 pm

1 stop10h 23m

$292

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Fri 2/21

12:25 am-10:59 am

1 stop7h 34m

Washington, D.C. Reagan-National

Wed 2/26

5:00 am-11:04 am

1 stop9h 04m

$297

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 2/8

9:45 am-10:41 pm

1 stop9h 56m

Washington, D.C. Dulles Intl

Sat 2/15

5:13 pm-11:23 pm

1 stop9h 10m

$298

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Thu 2/6

8:24 am-4:29 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Sun 2/16

7:00 am-12:02 pm

1 stop8h 02m

$303

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 2/12

7:10 am-3:10 pm

Nonstop5h 00m

Washington, D.C. Dulles Intl

Tue 2/18

4:23 pm-7:24 pm

Nonstop6h 01m

$307

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Wed 3/5

11:48 pm-11:44 am

1 stop8h 56m

Washington, D.C. Reagan-National

Tue 3/11

4:15 pm-10:38 pm

1 stop9h 23m

$311

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 31 results
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Best time to book a flight from Seattle to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Seattle 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 Seattle to District of Columbia

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

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

Currently, August is the cheapest month in which you can book a flight from Seattle to District of Columbia (average of $241). Flying from Seattle to District of Columbia in March is currently the most expensive (average of $290). 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 SEA to DC?

Find hourly flight availability from Seattle to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 17, 2025.

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

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated January 17, 2025.
See what other customers who have flown with Frontier, American Airlines and United Airlines from Seattle to District of Columbia have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
3,199 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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
8,965 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

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 Seattle to District of Columbia. 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 from for flights from Seattle to District of Columbia?

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

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

    The Seattle/Tacoma Intl to District of Columbia flight path was viewed by 13 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 Seattle to District of Columbia one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $144. Users have also found prices from $148 and $149 on Frontier and American Airlines, respectively.

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

    Before booking your flight to District of Columbia from Seattle, check out the most reliable airlines to get you to your destination on time: Alaska Airlines (90%), Hawaiian Airlines (89%), Air Tahiti Nui( 85%).

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

    While on average a flight from Seattle to District of Columbia is generally $411, our data shows the cheapest flight currently is $143. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Reagan-National), you can expect to pay $140 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to District of Columbia 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 Seattle to District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Seattle to District of Columbia (average of $241). Flying from Seattle to District of Columbia in March is currently the most expensive (average of $290). 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.

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Alternative routes for Seattle to District of Columbia

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Top 9 airlines flying from Seattle to District of Columbia

Discover the top 9 airlines that operate flights from Seattle to District of Columbia. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$228FlexibilityNo cancel feeOn-time62%
DeltaCheapest$152Average$477FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$169Average$534FlexibilityNo cancel feeOn-time83%
Spirit AirlinesCheapest$171Average$268FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$215Average$469FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$235Average$507FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$240Average$441FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$472FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$249Average$341FlexibilityNo cancel feeOn-time62%
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