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

SEA — WAS
2 Apr — 9 Apr1
Return
1 adult
Economy
From?
To?
Sun 2/4
Sun 9/4

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..

SEA - WAS

Price

C$ 266 - C$ 712

WAS

Temperature

2 - 27 °C

WAS

Rainfall

66 - 102 mm

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

Fly from

Any airport

Fly to

Any airport

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

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

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

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

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

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

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

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

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

Flights are sorted by cheapest first

Deals found on 27/3

Related info for your journey

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

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.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Alaska AirlinesCheapestC$ 202AverageC$ 667FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search Alaska Airlines flights
Endeavor AirlinesCheapestC$ 633AverageC$ 725FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
Search Endeavor Airlines flights

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

See what time of day planes typically take off from Seattle to Washington, D.C.
1%of flight departuresEarly morningMidnight to 6 am
68%of flight departuresMorning6 am to noon
17%of flight departuresAfternoonNoon to 6 pm
14%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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.
Sunday22daily flights
Monday23daily flights
Tuesday20daily flights
Wednesday21daily flights
Thursday20daily flights
Friday22daily flights
Saturday22daily flights
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