Cheap flights from Seattle (SEA) to Washington, D.C. (WAS) from $87

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 9/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SEA — WAS
Jun 18 — Jun 251

The best prices from Seattle/Tacoma Intl to Washington, D.C. are usually found in February or January, booked 57 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Seattle to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Washington, D.C. (WAS). 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 June 13, 2024.

Popular in

June

Cheapest in

February

Round-trip from

$234

One-way from

$115
High demand for flights, 19% potential price rise
Best time to find cheap flights, 18% potential price drop
From Seattle/Tacoma Intl to Washington, D.C. (WAS)
One-way flight from Seattle/Tacoma Intl to Washington, D.C. (WAS)

What is the cheapest day to fly round-trip from Seattle to Washington, D.C.?

Wednesday is generally a great day to depart. Flying on this day could help you save up to 20%.

How far in advance should I book a flight from Seattle to Washington, D.C.?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 58 days in advance, which can save you up to 76% on flights from Seattle to Washington, D.C. compared to booking the week you need them. Waiting 58 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $447. For sooner than that we have options available in the next 3 days from $627.

What is the cheapest month to fly from Seattle to Washington, D.C.?

February is one of the best times of the year to fly to Washington, D.C. from Seattle. Prices for February average $396 per person but you can even find prices for as low as $125. The most expensive prices can be found in the month of June. Opting for a February flight can save you 23% on your journey compared to booking in June

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

When flying from Seattle to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 19% versus a flight at noon.

Cheap Seattle to Washington, D.C. flights in June & July 2024

Find cheap flight options from Seattle to Washington, D.C. specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,214,720 searches. Prices were last updated on June 13, 2024.
Check out some of the best flight deals from Seattle to Washington, D.C. in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 7/29:41 pmSEA - BWI
1 stop14h 14mMultiple Airlines
Tue 7/98:54 pmBWI - SEA
1 stop13h 06mMultiple Airlines
Deal found 6/12$195
Tue 7/28:12 pmSEA - DCA
1 stop22h 45mFrontier
Tue 7/97:00 amDCA - SEA
1 stop27h 00mFrontier
Deal found 6/12$199
Wed 7/310:39 pmSEA - BWI
1 stop11h 00mFrontier
Tue 7/98:54 pmBWI - SEA
1 stop13h 06mFrontier
Deal found 6/12$203
Wed 7/109:40 pmSEA - BWI
1 stop11h 56mFrontier
Tue 7/168:54 pmBWI - SEA
1 stop13h 06mFrontier
Deal found 6/13$208
Tue 7/99:41 pmSEA - BWI
1 stop12h 54mMultiple Airlines
Tue 7/168:54 pmBWI - SEA
1 stop13h 06mMultiple Airlines
Deal found 6/12$210
Wed 7/105:15 pmSEA - BWI
1 stop10h 22mMultiple Airlines
Tue 7/238:54 pmBWI - SEA
1 stop13h 06mMultiple Airlines
Deal found 6/13$211
Wed 7/310:39 pmSEA - BWI
1 stop11h 00mFrontier
Tue 7/98:54 pmBWI - SEA
1 stop13h 06mFrontier
Deal found 6/13$213
Fri 7/196:24 pmSEA - BWI
1 stop12h 39mFrontier
Tue 7/238:54 pmBWI - SEA
1 stop13h 06mFrontier
Deal found 6/11$218
Wed 7/109:40 pmSEA - DCA
1 stop11h 29mFrontier
Tue 7/1612:59 pmDCA - SEA
1 stop21h 01mFrontier
Deal found 6/13$218

Seattle to Washington, D.C. 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Washington, D.C. in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Check out some of the best flight deals from Seattle to Washington, D.C. in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Wed 9/189:37 amSEA - DCA
1 stop9h 22mFrontier
Sat 9/2112:59 pmDCA - SEA
1 stop11h 12mFrontier
Deal found 6/12$180
Tue 10/19:37 amSEA - DCA
1 stop9h 22mFrontier
Tue 10/86:59 pmDCA - SEA
1 stop16h 38mFrontier
Deal found 6/11$181
Wed 9/255:20 amSEA - BWI
1 stop9h 19mAmerican Airlines
Tue 10/11:24 pmBWI - SEA
1 stop9h 07mAmerican Airlines
Deal found 6/13$182
Mon 9/2311:59 pmSEA - BWI
1 stop8h 26mAmerican Airlines
Wed 9/259:33 amBWI - SEA
1 stop10h 57mAmerican Airlines
Deal found 6/13$183
Fri 8/3010:08 pmSEA - DCA
1 stop11h 01mFrontier
Tue 9/312:59 pmDCA - SEA
1 stop22h 38mFrontier
Deal found 6/11$183
Fri 9/2710:08 pmSEA - BWI
1 stop10h 55mFrontier
Wed 10/91:03 pmBWI - SEA
1 stop22h 34mFrontier
Deal found 6/11$188
Sat 8/2410:08 pmSEA - DCA
1 stop11h 01mFrontier
Tue 8/276:59 pmDCA - SEA
1 stop16h 38mFrontier
Deal found 6/12$188
Tue 8/275:30 amSEA - BWI
1 stop10h 41mMultiple Airlines
Wed 9/41:03 pmBWI - SEA
1 stop22h 34mMultiple Airlines
Deal found 6/12$190
Wed 9/410:08 pmSEA - DCA
1 stop17h 01mFrontier
Sat 9/147:00 amDCA - SEA
1 stop17h 11mFrontier
Deal found 6/13$190

Seattle to Washington, D.C. flights leaving soon

Find last-minute flight options from Seattle to Washington, D.C. for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Have a look at some of the last-minute flights available departing from Seattle to Washington, D.C.. It's wise to confirm all flight details are correct before booking.
Thu 6/209:32 pmSEA - BWI
1 stop13h 57mSpirit Airlines
Tue 7/29:38 pmBWI - SEA
1 stop13h 54mSpirit Airlines
Deal found 6/12$264
Thu 6/209:32 pmSEA - BWI
1 stop7h 56mSpirit Airlines
Sun 6/239:28 pmBWI - SEA
1 stop14h 04mSpirit Airlines
Deal found 6/12$265
Tue 6/186:05 amSEA - BWI
1 stop8h 22mDelta
Tue 6/256:00 amBWI - SEA
1 stop9h 56mDelta
Deal found 6/12$267
Wed 6/199:41 pmSEA - BWI
1 stop11h 58mMultiple Airlines
Sat 6/229:28 pmBWI - SEA
1 stop14h 04mMultiple Airlines
Deal found 6/12$280
Thu 6/209:32 pmSEA - BWI
1 stop13h 57mSpirit Airlines
Sat 6/229:28 pmBWI - SEA
1 stop14h 04mSpirit Airlines
Deal found 6/12$293
Thu 6/209:32 pmSEA - BWI
1 stop13h 57mSpirit Airlines
Sun 6/235:31 pmBWI - SEA
2 stops18h 01mSpirit Airlines
Deal found 6/12$295
Thu 6/209:32 pmSEA - BWI
1 stop7h 56mSpirit Airlines
Tue 6/259:38 pmBWI - SEA
1 stop13h 54mSpirit Airlines
Deal found 6/11$297
Tue 6/189:41 pmSEA - BWI
1 stop14h 14mSpirit Airlines
Thu 6/2712:21 pmBWI - SEA
1 stop10h 48mSpirit Airlines
Deal found 6/11$298
Thu 6/209:32 pmSEA - BWI
1 stop7h 56mMultiple Airlines
Mon 7/17:09 pmBWI - SEA
3 stops20h 38mMultiple Airlines
Deal found 6/12$306

One-way flights to Washington, D.C. from Seattle

Search for one-way flight options from Seattle to Washington, D.C.. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,214,720 searches. Data last updated June 13, 2024.
Take a look at some of the best available options we've come across on one-way flights from Seattle to Washington, D.C.. Users needing a return flight from Seattle to Washington, D.C. should utilize the search form above.
Wed 9/119:37 amSEA - DCA
1 stop9h 22mFrontier
Deal found 6/12$87
Tue 9/109:14 amSEA - BWI
1 stop8h 48mSpirit Airlines
Deal found 6/12$89
Thu 6/205:53 amSEA - BWI
1 stop8h 20mAmerican Airlines
Deal found 6/12$91
Fri 9/1310:08 pmSEA - BWI
1 stop10h 55mFrontier
Deal found 6/12$93
Fri 8/3010:08 pmSEA - DCA
1 stop11h 01mFrontier
Deal found 6/12$93
Tue 7/29:41 pmSEA - BWI
1 stop14h 14mSpirit Airlines
Deal found 6/12$104
Sat 8/3110:08 pmSEA - DCA
1 stop11h 01mFrontier
Deal found 6/12$104
Fri 9/1310:08 pmSEA - DCA
1 stop11h 01mFrontier
Deal found 6/12$105
Fri 8/3010:08 pmSEA - BWI
1 stop10h 55mFrontier
Deal found 6/12$106

Find flights from Seattle to Washington, D.C. within your budget

Customize your flight search to find flights from Seattle to Washington, D.C. 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 3,214,720 searches. Data last updated June 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$180 - $295

Route

Depart

Return

Price

Seattle/Tacoma IntlWashington, D.C. Reagan-National

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Wed 9/18

1 stop9h 22m

Washington, D.C. Reagan-National

Sat 9/21

1 stop11h 12m

$180

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Wed 9/25

1 stop9h 19m

Baltimore/Washington

Sat 9/28

1 stop10h 03m

$182

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 8/27

1 stop10h 41m

Baltimore/Washington

Wed 9/4

1 stop22h 34m

$190

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Tue 8/20

1 stop10h 41m

Baltimore/Washington

Wed 8/28

1 stop18h 01m

$201

Seattle/Tacoma IntlWashington, D.C. Reagan-National

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Sun 11/3

1 stop8h 18m

Washington, D.C. Reagan-National

Mon 11/4

1 stop10h 42m

$224

Seattle/Tacoma IntlBaltimore/Washington

SEA - BWI

SEABWI

Seattle/Tacoma Intl

Thu 8/8

1 stop9h 43m

Baltimore/Washington

Tue 8/13

1 stop9h 41m

$236

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 8/21

1 stop32h 51m

Washington, D.C. Dulles Intl

Sat 8/24

Nonstop5h 48m

$258

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Sat 9/28

Nonstop5h 08m

Washington, D.C. Dulles Intl

Sat 9/28

Nonstop5h 51m

$271

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 7/4

1 stop16h 02m

Washington, D.C. Dulles Intl

Mon 7/22

1 stop24h 54m

$295

Flights are sorted by cheapest first

Deals found on 6/12

How far ahead should I book a flight from Seattle to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Washington, D.C.. Price data was last updated on June 12, 2024.
The price you pay for your flight from Seattle to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 57 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Search Deals

What is the cheapest day to fly from Seattle to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Washington, D.C.. Price data was last updated on June 9, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Washington, D.C. flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Seattle to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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.

Temperature and rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated June 13, 2024.
See what other customers who have flown with United Airlines, Alaska Airlines and Sun Country Air from Seattle to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
9,272 reviews

Entertainment

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

8.1
Very good
9,272 reviews
8.1
Very good
9,272 reviews

Entertainment

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

8.0
Very good
10,000 reviews
8.1
Very good
9,272 reviews

Entertainment

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

7.6
Good
4,260 reviews
8.1
Very good
9,272 reviews

Entertainment

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

7.5
Good
2,824 reviews
8.1
Very good
9,272 reviews

Entertainment

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

7.4
Good
10,000 reviews
8.1
Very good
9,272 reviews

Entertainment

7.3

Boarding

8.2

Overall

8.1

Crew

8.6

Comfort

7.9

Food

7.3

Reviews

1 / 10

I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Washington, D.C.. 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 Washington, D.C.?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Washington, D.C.. 8 airlines have flights from Seattle/Tacoma Intl to Washington, D.C. on a regular basis. Booking flights from Seattle/Tacoma Intl to Washington, D.C. should not be difficult; the airport handles an average of 21 outbound flights to Washington, D.C. per day.

  • Can I find flights from Seattle to Washington, D.C. for under $200 on Cheapflights?

    Yes, there are multiple flights from Seattle to Washington, D.C. for under $200. The cheapest flight booked recently is on Frontier for just $180, but on average you can expect to pay $193.

  • Are there nonstop flights from Seattle to Washington, D.C. for under $300 on Cheapflights?

    Cheapflights has at least 20 direct flights from Seattle to Washington, D.C. under $300. A good price for a nonstop flight from Seattle to Washington, D.C. is less than $303.

  • Are there last-minute flights available from Seattle to Washington, D.C. for under $300?

    There are currently 20+ open flights from Seattle to Washington, D.C. within the next 7 days for less than $300.

  • What days are nonstop flights available from Seattle to Washington, D.C.?

    Days when nonstop flights are available for this flight are: Thursday.

  • How many flights depart from Seattle to Washington, D.C. on average per day?

    Per day, 2 flights depart from Seattle to Washington, D.C. on average.
    Morning (6am - Noon) - 100% of flight departures

  • How long is the flight from Seattle to Washington, D.C.?

    A quick flight from Seattle to Washington, D.C. can take about 9h 19m. Frontier provides one of the quickest options available for as low as $180. The distance between Seattle and Washington, D.C. is about 2313 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Washington, D.C. round-trip?

    Our cheapest airline available from Seattle to Washington, D.C. is Frontier. Our recent data shows that you can find tickets from as low as $180 on this airline. Additional options worth looking into are American Airlines and Spirit Airlines, starting at $182 and $201 round-trip. Frontier is currently priced 54% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Seattle to Washington, D.C. one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $87. However, be on the lookout for offers from Spirit Airlines and American Airlines, as they are both options that can get you from Seattle to Washington, D.C. for a low price.

  • What are the most popular routes from Seattle to Washington, D.C.?

  • What are the most reliable airlines from Seattle to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from Seattle to Washington, D.C. consider choosing Scandinavian Airlines (96%), Avianca (92%) or United Airlines (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Washington, D.C.?

    While on average a flight from Seattle to Washington, D.C. is generally $828, our data shows the cheapest flight currently is $144. When looking at the most popular route, (Seattle/Tacoma Intl - Washington, D.C. Dulles Intl), you can expect to pay $277 for that flight.

  • What does SEA to IAD mean?

    SEA stands for Seattle/Tacoma Intl Airport, while IAD stands for Washington, D.C. Dulles Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Baltimore/Washington Airport (BWI), Washington, D.C. Reagan-National Airport (DCA) are other airports near this flight route and their unique identifiers/IATA codes.

  • Where are the most common layover locations when flying from Seattle to Washington, D.C.?

  • What are some popular things to do or see while on a layover in Chicago?

    Magnificent Mile, Grant Park, and River North are the most popular attractions in Chicago if you're in need of something to do during your layover. Magnificent Mile, Grant Park, and River North can be visited by traveling about 15.5 mi, 16.2 mi, and 15.0 mi respectively from Chicago O'Hare Intl. Those on a layover in Chicago in need of a rental car can book one at Chicago O'Hare Intl for about $64.

  • Where are the least popular layover locations for Seattle to Washington, D.C. flights?

  • Can I find deals for flights from Seattle to Washington, D.C. that include extra baggage allowance?

    The amount of baggage you can bring on your Seattle to Washington, D.C. flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Seattle to Washington, D.C. with specific airlines?

    Yes, Cheapflights allows you to browse and filter Seattle to Washington, D.C. flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Seattle to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Seattle to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Washington, D.C.?

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

  • Can I find deals for business class flights from Seattle to Washington, D.C.?

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

  • Can I find deals for flights from Seattle to Washington, D.C. that allow pets onboard?

    Many airlines flying from Seattle to Washington, D.C. offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Seattle to Washington, D.C.?

    Yes, you can often find last-minute deals on Seattle to Washington, D.C. flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Seattle to Washington, D.C. flight deals updated?

    The Seattle to Washington, D.C. flight deals you see on this page were last updated on 6/13.

  • What are the most popular airlines that fly from Seattle to Washington, D.C.?

  • What is the cheapest month to book a flight from Seattle to Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from Seattle to Washington, D.C. (average of $278). Flying from Seattle to Washington, D.C. in June is currently the most expensive (average of $382). 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

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.

Top 8 airlines flying from Seattle to Washington, D.C.

Discover the top 8 airlines that operate flights from Seattle to Washington, D.C.. 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 3,214,720 searches. Data last updated June 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$114Average$295FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$463FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$132Average$250FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$134Average$272FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$159Average$482FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$213Average$398FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$225Average$437FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$286Average$506FlexibilityNo cancel feeOn-time83%

Search flights from Seattle to Washington, D.C. by cabin class

Find flights from Seattle to Washington, D.C., based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Seattle to Washington, D.C.

Find hourly flight availability from Seattle to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 13, 2024.
1%of flight departuresEarly morningMidnight to 6 am
38%of flight departuresMorning6 am to noon
21%of flight departuresAfternoonNoon to 6 pm
40%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Seattle to Washington, D.C.

Explore weekly flight availability from Seattle to Washington, D.C.. 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 June 13, 2024.
Sunday22daily flights
Monday23daily flights
Tuesday20daily flights
Wednesday21daily flights
Thursday20daily flights
Friday22daily flights
Saturday22daily flights
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