Cheap flights from Washington, D.C. to Seattle from £99

Trusted by millions

Kiwi.com Guarantee for stress-free travel

One search, all the best deals

Explore flight deals to Seattle

1 stop
Sat, Jul 26
Washington, D.C. DCASeattle SEA

£99
Search
1 stop
Sat, Jul 26
Washington, D.C. DCASeattle SEA

£104
Search
Direct
Wed, Jul 23
Washington, D.C. BWISeattle SEA

£126
Search
Direct
Tue, Jul 22
Washington, D.C. IADSeattle SEA

£130
Search
Direct
Tue, Jul 22
Washington, D.C. IADSeattle SEA

£130
Search
Direct
Sat, Jul 26
Washington, D.C. BWISeattle SEA

£142
Search

Prices updated:

Direct
Sat, Jul 26 – Wed, Jul 30
Washington, D.C. IADSeattle SEA

£224
Search
Direct
Sat, Jul 26 – Wed, Jul 30
Washington, D.C. IADSeattle SEA

£224
Search
Direct
Sat, Jul 26 – Thu, Jul 31
Washington, D.C. IADSeattle SEA

£255
Search
Direct
Sat, Jul 26 – Thu, Jul 31
Washington, D.C. IADSeattle SEA

£255
Search
Direct
Sat, Jul 26 – Thu, Jul 31
Washington, D.C. IADSeattle SEA

£255
Search
Direct
Sat, Jul 26 – Thu, Jul 31
Washington, D.C. IADSeattle SEA

£255
Search

Prices updated:

Key info about flying to Seattle

Depart from
Washington Dulles International
Arrive to
Seattle–Tacoma International
Average flights per week
143
Flight distance
3752 km
Worth visiting
Lulu Island

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 chart.

AirlineMon 30.06Tue 01.07Wed 02.07Thu 03.07Fri 04.07Sat 05.07Sun 06.07
---------------------
---------------------
---------------------
Weekly flights: 0 totalDaily flights: 0 averageMost flights: 0 flights
AirlineMon 07.07Tue 08.07Wed 09.07Thu 10.07Fri 11.07Sat 12.07Sun 13.07
------63677
---------------------
------32341
Weekly flights: 42 totalDaily flights: 6 averageMost flights: Saturday 7 flights
AirlineMon 14.07Tue 15.07Wed 16.07Thu 17.07Fri 18.07Sat 19.07Sun 20.07
7757636
------33333
---13111---
Weekly flights: 63 totalDaily flights: 9 averageMost flights: Monday 7 flights
AirlineMon 21.07Tue 22.07Wed 23.07Thu 24.07Fri 25.07Sat 26.07Sun 27.07
5665477
4331133
---12---11---
Weekly flights: 63 totalDaily flights: 9 averageMost flights: Saturday 7 flights

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

NameCarrier codeIATA CodePassport needed during booking
Hawaiian AirlinesHALHANo
United AirlinesUALUANo
Alaska AirlinesASAASNo
Frontier AirlinesFFTF9No
Air Excursions X4No

Weather in Seattle

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January7°C2°C
February8°C1°C
March10°C3°C
April13°C5°C
May18°C8°C
June21°C10°C
July25°C13°C
August26°C14°C
September22°C11°C
October15°C7°C
November10°C4°C
December6°C2°C
Hottest Month
26°C
August
Coldest month
1°C
February
Sunny days
252
days per year
Snow days
5
days per year

14 day forecast

Saturday
28 Jun
24°C12°C
5 Jul
26°C10°C
Sunday
29 Jun
24°C11°C
6 Jul
26°C11°C
Monday
30 Jun
27°C13°C
7 Jul
28°C11°C
Tuesday
1 Jul
28°C12°C
8 Jul
25°C12°C
Wednesday
2 Jul
21°C10°C
9 Jul
24°C12°C
Thursday
3 Jul
23°C11°C
10 Jul
21°C11°C
Friday
4 Jul
25°C8°C
11 Jul
26°C11°C

Seattle travel tips

Don’t get surprised meeting freaks and crankeries on the streets of Seattle
How can Seattle CityPASS come in handy?
Green Lake is a nice escape for sunny weather in Seattle
Travelers usually depart from Washington Dulles International, Baltimore–Washington International, or Ronald Reagan Washington National when they travel from Washington, D.C. to Seattle. Book your trip to arrive at Seattle–Tacoma International, Boeing Field, or Kenmore Air Harbor Seaplane Base. The distance between Washington, D.C. and Seattle is 3752 km. The most popular airlines for this route are Hawaiian Airlines, United Airlines, Alaska Airlines, Frontier Airlines, and Air Excursions. Washington, D.C. and Seattle have 143 direct flights per week.

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?
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

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

Download our app

Start your next adventure now. Download our app and explore cheap flights effortlessly!

Find the best connection from Washington, D.C. to Seattle
Search flights

We hack the system,
you fly for less