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Cheap flights from Seattle to Washington, D.C. from C$ 193

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — WAS
25 Nov — 2 Dec1
1 adult

The best prices from Seattle/Tacoma Intl to Washington, D.C. are usually found in February or September, booked 57 days in advance, depart on a Saturday or Tuesday 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 20 November 2024.

Round-trip from

C$ 360

One-way from

C$ 193

Popular in

June

Cheapest in

February
Delta
  • Delta
  • 8/1-11/1
  • Nonstop
  • 11h 00m total
  • Seattle to Washington, D.C.
Alaska Airlines
  • Alaska Airlines
  • 11/12
  • 1 total stop
  • 10h 03m total
  • Seattle to Washington, D.C.
High demand for flights, 14% potential price rise
Best time to find cheap flights, 20% potential price drop

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

Cheapest flights from Seattle to Washington, D.C.
Explore the most affordable flight options available from Seattle to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 November 2024.

Wed 25/1212:37 p.m.SEA - IAD
Nonstop5h 03mUnited Airlines
Wed 8/15:30 p.m.IAD - SEA
Nonstop6h 01mUnited Airlines
Deal found 18/11C$ 360
Thu 12/129:05 a.m.SEA - IAD
1 stop9h 38mAlaska Airlines
Wed 8/16:57 p.m.IAD - SEA
Nonstop6h 03mAlaska Airlines
Deal found 18/11C$ 407
Wed 25/1210:08 p.m.SEA - IAD
Nonstop5h 02mDelta
Mon 6/14:20 p.m.IAD - SEA
Nonstop6h 00mDelta
Deal found 18/11C$ 430
Wed 18/129:36 p.m.SEA - DCA
1 stop16h 23mFrontier
Mon 6/17:00 a.m.DCA - SEA
1 stop9h 10mFrontier
Deal found 19/11C$ 489
Fri 13/129:05 a.m.SEA - DCA
1 stop8h 45mSouthwest
Mon 16/124:30 p.m.DCA - SEA
2 stops9h 25mSouthwest
Deal found 19/11C$ 533
Fri 13/1211:55 p.m.SEA - DCA
1 stop7h 28mUnited Airlines
Fri 3/15:00 p.m.DCA - SEA
1 stop8h 47mUnited Airlines
Deal found 20/11C$ 536
Thu 12/127:35 a.m.SEA - DCA
1 stop7h 10mAlaska Airlines
Mon 6/16:55 p.m.DCA - SEA
1 stop15h 13mAlaska Airlines
Deal found 20/11C$ 546
Wed 4/1212:06 p.m.SEA - DCA
1 stop8h 38mDelta
Wed 11/129:59 a.m.DCA - SEA
1 stop13h 01mDelta
Deal found 20/11C$ 617
Wed 4/128:25 a.m.SEA - IAD
1 stop11h 35mSouthwest
Thu 12/127:25 a.m.IAD - SEA
2 stops17h 20mSouthwest
Deal found 20/11C$ 631

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 645,034 searches. Data last updated 20 November 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 8/1

7:25 a.m.-3:25 p.m.

Nonstop5h 00m

Washington, D.C. Dulles Intl

Sat 11/1

4:20 p.m.-7:20 p.m.

Nonstop6h 00m

C$ 360

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Wed 25/12

5:00 a.m.-3:39 p.m.

1 stop7h 39m

Washington, D.C. Dulles Intl

Wed 8/1

5:30 p.m.-8:31 p.m.

Nonstop6h 01m

C$ 367

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Tue 21/1

7:50 p.m.-4:23 p.m.

1 stop17h 33m

Washington, D.C. Dulles Intl

Sat 1/2

6:57 p.m.-10:00 p.m.

Nonstop6h 03m

C$ 372

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Thu 20/2

11:17 p.m.-11:35 a.m.

1 stop9h 18m

Washington, D.C. Reagan-National

Thu 27/2

4:15 p.m.-10:38 p.m.

1 stop9h 23m

C$ 375

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Tue 21/1

11:59 p.m.-10:43 a.m.

1 stop7h 44m

Washington, D.C. Reagan-National

Fri 24/1

8:30 a.m.-4:16 p.m.

1 stop10h 46m

C$ 421

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Wed 8/1

8:24 a.m.-4:29 p.m.

Nonstop5h 05m

Washington, D.C. Reagan-National

Sat 11/1

8:00 a.m.-11:04 a.m.

Nonstop6h 04m

C$ 444

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Thu 9/1

10:40 a.m.-8:35 p.m.

1 stop6h 55m

Washington, D.C. Reagan-National

Mon 13/1

2:55 p.m.-10:40 p.m.

2 stops10h 45m

C$ 470

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Wed 18/12

9:36 p.m.-4:59 p.m.

1 stop16h 23m

Washington, D.C. Reagan-National

Mon 6/1

7:00 a.m.-1:10 p.m.

1 stop9h 10m

C$ 489

SeattleWashington, D.C.

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

Thu 23/1

12:20 p.m.-11:05 p.m.

1 stop7h 45m

Washington, D.C. Dulles Intl

Tue 28/1

11:10 a.m.-11:20 p.m.

2 stops15h 10m

C$ 505

SeattleWashington, D.C.

SEA - DCA

SEADCA

Seattle/Tacoma Intl

Mon 17/3

11:40 p.m.-11:00 a.m.

1 stop8h 20m

Washington, D.C. Reagan-National

Mon 24/3

4:46 p.m.-9:46 p.m.

1 stop8h 00m

C$ 531

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/11

Showing 1-10 of 25 results
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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.

Travel insights for flights from Seattle to Washington, D.C.

Get recent, data-driven insights about flights from Seattle to Washington, D.C. including ideal travel times, pricing trends, and more.

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 15 November 2024.

Booking 57 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Washington, D.C. (average of C$ 257). Flying from Seattle to Washington, D.C. in July is currently the most expensive (average of C$ 347). 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 WAS?

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 20 November 2024.

Unlike at noon, when flights are generally more expensive, you can save up to 60% on flights from Seattle to Washington, D.C. by exploring options for tickets in the afternoon.

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 20 November 2024.

The most flights from SEA to WAS are scheduled on a Wednesday (27 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 Washington, D.C. by month

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

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

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

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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 20 November 2024.
Get a feel of what it's like to fly with Delta, United Airlines and Alaska Airlines from Seattle to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

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

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

8.0
Very good
9,461 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

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

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

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

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Boarding

8.2

Crew

8.7

Reviews

1 / 10

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

7.4
Good
9,171 reviews
8.1
Very good
5,014 reviews

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

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 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) is the airport you will fly out of if you book a flight from Seattle to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Seattle/Tacoma Intl; the airport handles an average of 18 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Seattle airport to Washington, D.C.. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.

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

    Currently priced at C$ 360, Delta will fly you from Seattle to Washington, D.C. and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from C$ 367 and C$ 372, respectively. These flights start at 36% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as C$ 193. Users have also found prices from C$ 195 and C$ 207 on Delta and United Airlines, respectively.

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

    Before booking your flight to Washington, D.C. 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 Washington, D.C.?

    Looking for the cheapest flight from Seattle to Washington, D.C.? While on average our users pay C$ 1,096, our data indicates the cheapest price to be C$ 212. The most popular route (Seattle/Tacoma Intl - Washington, D.C. Reagan-National), is priced around C$ 374.

  • 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.

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Washington, D.C. (average of C$ 257). Flying from Seattle to Washington, D.C. in July is currently the most expensive (average of C$ 347). 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

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Alternative routes for Seattle to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Seattle to Washington, D.C.

Discover the top 2 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 645,034 searches. Data last updated 20 November 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapestC$ 258AverageC$ 540FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
United AirlinesCheapestC$ 601AverageC$ 1,201FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from Seattle to Washington, D.C.?

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Washington, D.C.?

Millions of users choose and trust Cheapflights to book the best flight deals from Seattle to Washington, D.C. for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Seattle to Washington, D.C. with no change fees?

Yes, we can. To see specific flights from Seattle to Washington, D.C. with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Seattle to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Seattle to Washington, D.C. flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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