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

You can find direct flights on the following days: Sunday, Wednesday, Thursday, Friday, Saturday.

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

14 flight departures from Seattle to Washington, D.C. per day on average. Morning (6am - Midday) - 36% of flight departures Afternoon (Noon - 6pm) - 64% of flight departures

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

Frontier, JetBlue, and Alaska Airlines can get you from Seattle to Washington, D.C. in just under 5h 04m. Your travel time can differ by up to 9h 37m. The distance between Seattle and Washington, D.C. is about 3722 km. This flight may include one or multiple stops.

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

For one-way options, check prices for JetBlue. According to our data, you can fly for as low as C$ 158. Users have also found prices from C$ 204 and C$ 258 on Alaska Airlines and Frontier, respectively.

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$ 639, our data indicates the cheapest price to be C$ 370. The most popular route (Seattle/Tacoma Intl - Washington, D.C. Reagan-National), is priced around C$ 659.

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: KLM (100%), Copa Airlines (95%), Avianca( 95%).

Can I find flights from Seattle to Washington, D.C. for under C$ 300 on Cheapflights?

Yes, there are multiple flights from Seattle to Washington, D.C. for under C$ 300. The cheapest flight booked recently is on Frontier for just C$ 296, but on average you can expect to pay C$ 447.

Are there direct flights from Seattle to Washington, D.C. for under C$ 500 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to Washington, D.C. under C$ 500. A good price for a direct flight from Seattle to Washington, D.C. is less than C$ 514.

Are there last-minute flights available from Seattle to Washington, D.C. for under C$ 700?

There are currently 20+ open flights from Seattle to Washington, D.C. within the next 7 days for less than C$ 700.

Which airlines flying from Seattle/Tacoma Intl to Washington, D.C. have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Endeavor Airlines and Alaska Airlines flying from Seattle/Tacoma Intl to Washington, D.C. have implemented new flexible cancellation policies.

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

Travellers have found that booking a Tuesday departure is the best way to save up to 99% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Find a great deal and save up to 43% by booking at least 39 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to Washington, D.C. within the next two weeks, with the cheapest ticket starting at C$ 723.

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

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, January can be a great choice for travel to Washington, D.C.. Flights to Washington, D.C. from Seattle in January are about C$ 627 on average during January, but can be found for as low as C$ 270.

When is the cheapest time to fly from Seattle to Washington, D.C. (SEA - WAS)?

Unlike at noon, when flights are generally more expensive, you can save up to 22% on flights from Seattle to Washington, D.C. by exploring options for tickets in the afternoon.

What does SEA to IAD mean?

Seattle/Tacoma Intl Airport is SEA and Washington, D.C. Dulles Intl Airport is IAD. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Washington, D.C. Reagan-National Airport (DCA) are other airports near this flight route and their unique identifiers/IATA codes.

Cheap Flights from Seattle to Washington, D.C. from C$ 158

How to find the cheapest flight from Seattle (SEA) to Washington, D.C. (WAS)

SEA - WAS Price	C$ 266 - C$ 712
WAS Temperature	2 - 27 °C
WAS Rainfall	66 - 102 mm

SEA - WAS

Price

C$ 266 - C$ 712

WAS

Temperature

2 - 27 °C

WAS

Rainfall

66 - 102 mm

Popular in	June	High demand for flights, 36% potential price rise
Cheapest in	January	Best time to find cheap flights, 42% potential price drop
Round-trip from	C$ 364	From Seattle/Tacoma Intl to Washington, D.C. (WAS)
One-way from	C$ 244	One-way flight from Seattle/Tacoma Intl to Washington, D.C. (WAS)

Cheap flights from Seattle to Washington, D.C. in March, April 2023

26 Apr. - 3 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

10h 05m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

9h 49m

C$ 352

JetBlue

Pick Dates

Deal found 27/3

19 Apr. - 3 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

11h 06m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

10h 49m

C$ 400

JetBlue

Pick Dates

Deal found 27/3

19 Apr. - 3 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 408

Alaska Airlines

Pick Dates

Deal found 27/3

19 Apr. - 22 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 422

Alaska Airlines

Pick Dates

Deal found 28/3

19 Apr. - 2 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 38m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 436

Alaska Airlines

Pick Dates

Deal found 27/3

11 Apr. - 24 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

2 stops

44h 22m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 440

Multiple Airlines

Pick Dates

Deal found 27/3

19 Apr. - 29 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

10h 33m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 449

Alaska Airlines

Pick Dates

Deal found 27/3

19 Apr. - 3 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 38m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 44m

C$ 462

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 29 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 463

Alaska Airlines

Pick Dates

Deal found 27/3

Seattle to Washington, D.C. 2023 flight deals

4 May - 7 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

14h 41m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

20h 14m

C$ 296

Frontier

Pick Dates

Deal found 27/3

26 Apr. - 3 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

10h 05m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

9h 49m

C$ 352

JetBlue

Pick Dates

Deal found 27/3

19 Apr. - 3 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

11h 06m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

10h 49m

C$ 400

JetBlue

Pick Dates

Deal found 27/3

19 Apr. - 26 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 408

Alaska Airlines

Pick Dates

Deal found 28/3

19 Apr. - 22 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 422

Alaska Airlines

Pick Dates

Deal found 28/3

19 Apr. - 2 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 38m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 436

Alaska Airlines

Pick Dates

Deal found 27/3

15 Sep. - 19 Sep.

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

9h 48m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

10h 05m

C$ 438

JetBlue

Pick Dates

Deal found 27/3

11 Apr. - 24 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

2 stops

44h 22m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 440

Multiple Airlines

Pick Dates

Deal found 27/3

19 Apr. - 4 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

9h 10m

C$ 449

Alaska Airlines

Pick Dates

Deal found 27/3

Cheap Alaska Airlines flights from Seattle to Washington, D.C.

19 Apr. - 26 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 408

Alaska Airlines

Pick Dates

Deal found 28/3

18 Apr. - 29 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 422

Alaska Airlines

Pick Dates

Deal found 27/3

19 Apr. - 2 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 38m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 436

Alaska Airlines

Pick Dates

Deal found 27/3

19 Apr. - 29 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

10h 33m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 449

Alaska Airlines

Pick Dates

Deal found 27/3

19 Apr. - 3 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 38m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 44m

C$ 462

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 29 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 463

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 2 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 01m

C$ 475

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 1 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

9h 29m

C$ 477

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 1 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

9h 29m

C$ 489

Alaska Airlines

Pick Dates

Deal found 27/3

Cheap Delta flights from Seattle to Washington, D.C.

12 Apr. - 26 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 51m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 522

Delta

Pick Dates

Deal found 27/3

3 May - 7 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 51m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 532

Delta

Pick Dates

Deal found 28/3

4 May - 7 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 51m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 559

Delta

Pick Dates

Deal found 27/3

4 Apr. - 11 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 02m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 677

Delta

Pick Dates

Deal found 27/3

6 Apr. - 12 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

7h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 691

Delta

Pick Dates

Deal found 28/3

6 Apr. - 18 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 02m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 700

Delta

Pick Dates

Deal found 27/3

25 Apr. - 3 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

7h 14m

DCA

Washington, D.C. Reagan-National

SEA

Seattle/Tacoma Intl

1 stop

10h 19m

C$ 708

Delta

Pick Dates

Deal found 27/3

6 Apr. - 13 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 02m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 714

Delta

Pick Dates

Deal found 27/3

6 Apr. - 13 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 32m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 728

Delta

Pick Dates

Deal found 27/3

Direct flights to Washington, D.C. from Seattle

19 Apr. - 3 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 408

Alaska Airlines

Pick Dates

Deal found 27/3

19 Apr. - 22 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 422

Alaska Airlines

Pick Dates

Deal found 28/3

17 Apr. - 2 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 436

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 29 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 449

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 22 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 39m

C$ 463

Alaska Airlines

Pick Dates

Deal found 27/3

17 Apr. - 21 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

4h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 477

Alaska Airlines

Pick Dates

Deal found 27/3

20 Apr. - 24 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 01m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 54m

C$ 490

United Airlines

Pick Dates

Deal found 28/3

2 May - 7 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 00m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 53m

C$ 504

United Airlines

Pick Dates

Deal found 27/3

27 Apr. - 6 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 00m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 53m

C$ 518

United Airlines

Pick Dates

Deal found 27/3

Last minute flights from Seattle to Washington, D.C.

5 Apr. - 18 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 55m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 604

Alaska Airlines

Pick Dates

Deal found 28/3

4 Apr. - 11 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

12h 06m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 54m

C$ 610

United Airlines

Pick Dates

Deal found 27/3

5 Apr. - 18 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 55m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

9h 10m

C$ 617

Alaska Airlines

Pick Dates

Deal found 27/3

6 Apr. - 21 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

9h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 618

Alaska Airlines

Pick Dates

Deal found 27/3

6 Apr. - 18 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 49m

C$ 632

Alaska Airlines

Pick Dates

Deal found 27/3

6 Apr. - 18 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

8h 40m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 44m

C$ 644

Alaska Airlines

Pick Dates

Deal found 28/3

4 Apr. - 11 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 02m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 677

Delta

Pick Dates

Deal found 27/3

4 Apr. - 11 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

2 stops

13h 15m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

1 stop

14h 35m

C$ 678

United Airlines

Pick Dates

Deal found 27/3

6 Apr. - 10 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

7h 44m

IAD

Washington, D.C. Dulles Intl

SEA

Seattle/Tacoma Intl

Nonstop

5h 50m

C$ 691

Delta

Pick Dates

Deal found 28/3

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

29 Apr.

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

8h 02m

C$ 158

JetBlue

Pick Dates

Deal found 28/3

16 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

2 stops

41h 57m

C$ 189

Multiple Airlines

Pick Dates

Deal found 28/3

13 May

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

7h 35m

C$ 196

JetBlue

Pick Dates

Deal found 28/3

26 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

C$ 204

Alaska Airlines

Pick Dates

Deal found 28/3

3 May

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

C$ 218

Alaska Airlines

Pick Dates

Deal found 26/3

19 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

1 stop

9h 33m

C$ 232

Alaska Airlines

Pick Dates

Deal found 28/3

30 Apr.

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

9h 07m

C$ 244

JetBlue

Pick Dates

Deal found 26/3

21 Apr.

SEA

Seattle/Tacoma Intl

IAD

Washington, D.C. Dulles Intl

Nonstop

5h 04m

C$ 245

Alaska Airlines

Pick Dates

Deal found 28/3

16 Apr.

SEA

Seattle/Tacoma Intl

DCA

Washington, D.C. Reagan-National

1 stop

15h 13m

C$ 258

Frontier

Pick Dates

Deal found 28/3

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

Fly from

Fly to

Budget

C$ 296 - C$ 623

Route

Depart

Return

Price

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

SEA - DCA

SEADCA

Seattle/Tacoma Intl

2023-05-04

1 stop14h 41m

Washington, D.C. Reagan-National

2023-05-07

1 stop20h 14m

C$ 296

Pick Dates

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

SEA - DCA

SEADCA

Seattle/Tacoma Intl

2023-04-26

1 stop10h 05m

Washington, D.C. Reagan-National

2023-05-03

1 stop9h 49m

C$ 352

Pick Dates

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

SEA - DCA

SEADCA

Seattle/Tacoma Intl

2023-04-19

1 stop11h 06m

Washington, D.C. Reagan-National

2023-05-03

1 stop10h 49m

C$ 400

Pick Dates

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

2023-04-19

Nonstop5h 04m

Washington, D.C. Dulles Intl

2023-04-26

Nonstop5h 39m

C$ 408

Pick Dates

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

2023-04-11

2 stops44h 22m

Washington, D.C. Dulles Intl

2023-04-24

Nonstop5h 49m

C$ 440

Pick Dates

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

SEA - DCA

SEADCA

Seattle/Tacoma Intl

2023-04-22

1 stop7h 07m

Washington, D.C. Reagan-National

2023-05-02

1 stop11h 08m

C$ 475

Pick Dates

Seattle/Tacoma IntlWashington, D.C. Dulles Intl

SEA - IAD

SEAIAD

Seattle/Tacoma Intl

2023-04-12

Nonstop4h 51m

Washington, D.C. Dulles Intl

2023-04-26

Nonstop5h 50m

C$ 522

Pick Dates

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

SEA - DCA

SEADCA

Seattle/Tacoma Intl

2023-04-14

1 stop8h 47m

Washington, D.C. Reagan-National

2023-04-18

1 stop9h 41m

C$ 556

Pick Dates

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

SEA - DCA

SEADCA

Seattle/Tacoma Intl

2023-04-14

2 stops12h 20m

Washington, D.C. Reagan-National

2023-04-18

2 stops10h 35m

C$ 623

Pick Dates

Flights are sorted by cheapest first

Deals found on 27/3

Related info for your journey

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 21 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.

Currently priced at C$ 296, Frontier will fly you from Seattle to Washington, D.C. and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and Alaska Airlines - these airlines can fly you to your destination from C$ 352 and C$ 408, respectively. These flights start at 52% lower than the current average price 3 months from now.

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

Airline	Cheapest	Average	Flexibility	On-time	COVID-19 safety
Alaska Airlines	CheapestC$ 202	AverageC$ 667	FlexibilityNo cancel fee	On-time75%	COVID-19 safety	Search Alaska Airlines flights
Endeavor Airlines	CheapestC$ 633	AverageC$ 725	FlexibilityNo cancel fee	On-timeN/A	COVID-19 safety	Search Endeavor Airlines flights

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

1%of flight departures	Early morningMidnight to 6 am
68%of flight departures	Morning6 am to noon
17%of flight departures	AfternoonNoon to 6 pm
14%of flight departures	Evening6 pm to midnight

Midnight

6 AM

Noon

6 PM

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

Sunday	22daily flights
Monday	23daily flights
Tuesday	20daily flights
Wednesday	21daily flights
Thursday	20daily flights
Friday	22daily flights
Saturday	22daily flights

Cheap flights from Seattle to Washington, D.C. from C$ 158

The best prices from Seattle/Tacoma Intl to Washington, D.C. are usually found in January or February, booked 39 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

How to find the cheapest flight from Seattle (SEA) to Washington, D.C. (WAS)

All the information you need to plan the best SEA to WAS flight in 2023: compare Seattle to Washington, D.C. flight prices with the expected peak season, weather and rainfall in Washington, D.C..

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

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

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

When is the cheapest time to fly from Seattle to Washington, D.C. (SEA - WAS)?

Cheap flights from Seattle to Washington, D.C. in March, April 2023

The best prices found for SEA to WAS flights for March, April

Seattle to Washington, D.C. 2023 flight deals

Cheap flights to Washington, D.C. from Seattle found for this year

Cheap Alaska Airlines flights from Seattle to Washington, D.C.

Cheap Delta flights from Seattle to Washington, D.C.

Direct flights to Washington, D.C. from Seattle

Save time with Seattle to Washington, D.C. direct flight deals

Last minute flights from Seattle to Washington, D.C.

Late deals on round-trip flights to Washington, D.C. from Seattle, departing today and this week

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

The cheapest one-way flights from Seattle to Washington, D.C.

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

Use the slider to find flights from Seattle to Washington, D.C. that fit your budget.

Related info for your journey

Useful info, stats and facts about Seattle to Washington, D.C. flights.

What airport do you fly from for flights from Seattle to Washington, D.C.?

Which airlines flying from Seattle/Tacoma Intl to Washington, D.C. have flexible cancellations due to COVID-19?

Can I find flights from Seattle to Washington, D.C. for under C$ 300 on Cheapflights?

Are there direct flights from Seattle to Washington, D.C. for under C$ 500 on Cheapflights?

Are there last-minute flights available from Seattle to Washington, D.C. for under C$ 700?

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

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

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

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

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

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

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

What does SEA to IAD mean?

Other flights from Seattle

Other flights to Washington, D.C.

Flights to Washington, D.C. from Seattle

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

The chart below displays the airlines Cheapflights users travelling from Seattle to Washington, D.C. choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.

Popular flight searches

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

See what time of day planes typically take off from Seattle to Washington, D.C.

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

See how many times per day planes take to the skies headed from Seattle to Washington, D.C.

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