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District of Columbia

$134+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — IAD
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
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 November 20, 2024.

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 November 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/19. 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.
Mon 12/92:34 pmSEA - DCA
1 stop18h 27mFrontier
Tue 12/176:00 pmDCA - SEA
1 stop22h 10mFrontier
Deal found 11/19$241
This Orbitz deal was found by Cheapflights users on 11/18. 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.
Tue 12/319:36 pmSEA - DCA
1 stop11h 32mMultiple Airlines
Tue 1/75:29 pmDCA - SEA
Nonstop6h 06mMultiple Airlines
Deal found 11/18$253
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/2512:37 pmSEA - IAD
Nonstop5h 03mUnited Airlines
Wed 1/85:30 pmIAD - SEA
Nonstop6h 01mUnited Airlines
Deal found 11/18$257
This American Airlines deal was found by Cheapflights users on 11/18. 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 12/3110:56 pmSEA - DCA
1 stop9h 46mAmerican Airlines
Tue 1/75:00 amDCA - SEA
1 stop11h 06mAmerican Airlines
Deal found 11/18$276
This eDestinos deal was found by Cheapflights users on 11/19. 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.
Thu 12/121:40 pmSEA - IAD
2 stops18h 34mFrontier
Mon 12/1612:14 pmIAD - SEA
2 stops27h 56mFrontier
Deal found 11/19$286
This Alaska Airlines deal was found by Cheapflights users on 11/18. 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 12/129:05 amSEA - IAD
1 stop9h 38mAlaska Airlines
Wed 1/86:57 pmIAD - SEA
Nonstop6h 03mAlaska Airlines
Deal found 11/18$291
This Delta deal was found by Cheapflights users on 11/18. 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 12/2510:08 pmSEA - IAD
Nonstop5h 02mDelta
Mon 1/64:20 pmIAD - SEA
Nonstop6h 00mDelta
Deal found 11/18$307
This American Airlines deal was found by Cheapflights users on 11/19. 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 12/101:56 pmSEA - IAD
1 stop15h 43mAmerican Airlines
Fri 12/135:00 amIAD - SEA
1 stop10h 46mAmerican Airlines
Deal found 11/19$315
This United Airlines deal was found by Cheapflights users on 11/19. 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 12/106:25 amSEA - DCA
2 stops11h 30mUnited Airlines
Wed 12/1111:00 amDCA - SEA
1 stop11h 20mUnited Airlines
Deal found 11/19$347
This Southwest deal was found by Cheapflights users on 11/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/139:05 amSEA - DCA
1 stop8h 45mSouthwest
Mon 12/164:30 pmDCA - SEA
2 stops9h 25mSouthwest
Deal found 11/19$381
This Southwest deal was found by Cheapflights users on 11/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/129:00 amSEA - IAD
2 stops11h 00mSouthwest
Fri 12/134:00 pmIAD - SEA
1 stop10h 45mSouthwest
Deal found 11/19$451
This Alaska Airlines deal was found by Cheapflights users on 11/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/68:14 amSEA - DCA
Nonstop5h 06mAlaska Airlines
Tue 12/109:20 amDCA - SEA
1 stop32h 30mAlaska Airlines
Deal found 11/20$535

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Mon 12/9

2:34 pm-12:01 pm

1 stop18h 27m

Washington, D.C. Reagan-National

Tue 12/17

6:00 pm-1:10 pm

1 stop22h 10m

$241

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Thu 1/9

3:15 pm-12:01 pm

1 stop17h 46m

Washington, D.C. Reagan-National

Wed 1/15

8:00 am-11:04 am

Nonstop6h 04m

$245

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 1/8

7:25 am-3:25 pm

Nonstop5h 00m

Washington, D.C. Dulles Intl

Sat 1/11

4:20 pm-7:20 pm

Nonstop6h 00m

$257

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 12/25

5:00 am-3:39 pm

1 stop7h 39m

Washington, D.C. Dulles Intl

Wed 1/8

5:30 pm-8:31 pm

Nonstop6h 01m

$262

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 1/21

7:50 pm-4:23 pm

1 stop17h 33m

Washington, D.C. Dulles Intl

Sat 2/1

6:57 pm-10:00 pm

Nonstop6h 03m

$266

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Thu 2/20

11:17 pm-11:35 am

1 stop9h 18m

Washington, D.C. Reagan-National

Thu 2/27

4:15 pm-10:38 pm

1 stop9h 23m

$268

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Tue 12/31

10:56 pm-11:42 am

1 stop9h 46m

Washington, D.C. Reagan-National

Tue 1/7

5:00 am-1:06 pm

1 stop11h 06m

$276

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 2/1

7:11 am-7:35 pm

1 stop9h 24m

Washington, D.C. Dulles Intl

Tue 2/4

1:52 pm-7:10 pm

1 stop8h 18m

$276

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Fri 1/10

6:10 am-8:48 pm

2 stops11h 38m

Washington, D.C. Reagan-National

Mon 1/13

8:30 am-4:16 pm

1 stop10h 46m

$311

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Wed 1/8

8:24 am-4:29 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Sat 1/11

8:00 am-11:04 am

Nonstop6h 04m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 30 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, September is the cheapest month in which you can book a flight from Seattle to District of Columbia (average of $300). Flying from Seattle to District of Columbia in June is currently the most expensive (average of $376). 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 November 20, 2024.

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.

Weekly flight availability from Seattle to District of Columbia

Explore weekly flight availability from Seattle to District of Columbia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from SEA to USDC are scheduled on a Wednesday (19 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (11 on average).

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 November 20, 2024.
See what other customers who have flown with Delta, United Airlines and Alaska 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
5,014 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,014 reviews
Southwest
8.1
Very good
5,014 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,461 reviews
Southwest
8.1
Very good
5,014 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,756 reviews
Southwest
8.1
Very good
5,014 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,394 reviews
Southwest
8.1
Very good
5,014 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,171 reviews
Southwest
8.1
Very good
5,014 reviews

Food

7.2

Comfort

8.1

Entertainment

7.7

Overall

8.1

Boarding

8.2

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

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.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $134. Users have also found prices from $138 and $138 on American Airlines and Alaska 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: Iberia (93%), Qatar Airways (93%), KLM( 93%).

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

    While on average a flight from Seattle to District of Columbia is generally $833, our data shows the cheapest flight currently is $125. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl), you can expect to pay $257 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, September is the cheapest month in which you can book a flight from Seattle to District of Columbia (average of $300). Flying from Seattle to District of Columbia in June is currently the most expensive (average of $376). 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 8 airlines flying from Seattle to District of Columbia

Discover the top 8 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$86Average$226FlexibilityNo cancel feeOn-time62%
DeltaCheapest$146Average$483FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$169Average$534FlexibilityNo cancel feeOn-time83%
Spirit AirlinesCheapest$192Average$272FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$210Average$505FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$237Average$430FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$462FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$248Average$315FlexibilityNo cancel feeOn-time62%
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