Cheap flights from Washington, D.C., United States to Seattle, United States

Flights starting at $153. Choose between Alaska Airlines, United Airlines, or Sun Country Airlines to find the best price.

Make your travel wishlist, we'll do the rest
Hidden deals
Effortless booking
Travel hacking
Travelers usually depart from Baltimore–Washington International, Washington Dulles International, or Ronald Reagan Washington National when they travel from Washington, D.C. to Seattle. Book your trip to arrive at Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base. The distance between Washington, D.C. and Seattle is 3705 km. The most popular airlines for this route are Alaska Airlines, United Airlines, and Sun Country Airlines. Washington, D.C. and Seattle have 73 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from Washington, D.C. to Seattle in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 14.04 - Sat 20.04

AirlineSun 14.04Mon 15.04Tue 16.04Wed 17.04Thu 18.04Fri 19.04Sat 20.04
5556734
1111111

Weekly direct flights for Sun 21.04 - Sat 27.04

AirlineSun 21.04Mon 22.04Tue 23.04Wed 24.04Thu 25.04Fri 26.04Sat 27.04
5544556
1111111

Weekly direct flights for Sun 28.04 - Sat 04.05

AirlineSun 28.04Mon 29.04Tue 30.04Wed 01.05Thu 02.05Fri 03.05Sat 04.05
7766656
1111222

Weekly direct flights for Sun 05.05 - Sat 11.05

AirlineSun 05.05Mon 06.05Tue 07.05Wed 08.05Thu 09.05Fri 10.05Sat 11.05
6766656
2222222

Check-in for a flight from Washington, D.C. to Seattle

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Sun Country AirlinesSCXSYYesNo

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C4°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C1°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
250
days per year
Snow days
5
days per year

14 day forecast

Monday
22 Apr
15°C4°C
29 Apr
86%
9°C4°C
Tuesday
23 Apr
20°C5°C
30 Apr
12°C3°C
Wednesday
24 Apr
86%
15°C7°C
1 May
85%
12°C4°C
Thursday
25 Apr
75%
9°C8°C
2 May
85%
11°C7°C
Friday
26 Apr
89%
10°C8°C
3 May
82%
15°C7°C
Saturday
27 Apr
88%
14°C7°C
4 May
83%
9°C4°C
Sunday
28 Apr
80%
12°C5°C
5 May
86%
15°C2°C

Frequently asked questions

How long does it take to travel from Washington, D.C. to Seattle?
What is the flight distance between Washington, D.C. and Seattle?
What airlines offer nonstop (direct) flights between Washington, D.C. and Seattle?
What are the most popular routes to and from Washington, D.C.?
What are the most popular routes to and from Seattle?
Which airports are there in Washington, D.C.?
What airports are near Washington, D.C.?
What airports are near Seattle?
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Washington, D.C. and Seattle?
What is Virtual Interlining and how do I use it?
Which airlines fly between Washington, D.C. and Seattle?
When's the best time to travel between Washington, D.C. and Seattle?
What flights operate between Washington, D.C. and Seattle?
How many airports are there near Washington, D.C.?
How many airports are there near Seattle?
What time do nonstop (direct) flights between Washington, D.C. and Seattle depart?
What time do nonstop (direct) flights between Washington, D.C. and Seattle arrive?
What time do flights between Washington, D.C. and Seattle depart?
What time do flights between Washington, D.C. and Seattle arrive?

Explore alternative trips

Flights from Washington, D.C.

Flights to Seattle

Popular routes

The nearest countries with flights to Seattle

Here is a list of countries people are flying from

Other destination countries from Washington, D.C.

Here is a list of countries people are flying to
Find the best connection from Washington, D.C. to Seattle
Search flights, trains & buses
We hack the system,
you fly for less