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

Flights starting at $56. Choose between Alaska Airlines, Frontier Airlines, or United Airlines to find the best price.

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Tips to know when travelling to Washington, D.C.

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Travelers usually depart from Seattle–Tacoma International, or Kenmore Air Harbor Seaplane Base when they travel from Seattle to Washington, D.C.. Book your trip to arrive at Baltimore–Washington International, Washington Dulles International, or Ronald Reagan Washington National. The distance between Seattle and Washington, D.C. is 3705 km. The most popular airlines for this route are Alaska Airlines, Frontier Airlines, United Airlines, Spirit Airlines, and JetBlue Airways. Seattle and Washington, D.C. have 275 direct flights per week. When you arrive at Washington, D.C., consider visiting Lincoln Memorial, Independence National Historical Park, PA, USA, and National Mall.

Weekly direct flights

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

Weekly direct flights for Sun 07.04 - Sat 13.04

AirlineSun 07.04Mon 08.04Tue 09.04Wed 10.04Thu 11.04Fri 12.04Sat 13.04
2233545
---433344

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
4465776
3323223

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
6765676
2323333

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
6666776
2324223

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
Alaska AirlinesASAASNoOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
JetBlue AirwaysJBUB6NoOpens 24 days before flight
Closes 2 hours before flight

Weather in Washington, D.C.

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January5°C-1°C
February8°C0°C
March12°C3°C
April19°C8°C
May23°C13°C
June28°C18°C
July31°C21°C
August30°C20°C
September26°C17°C
October20°C11°C
November13°C4°C
December8°C1°C
Hottest Month
31°C
July
Coldest month
-1°C
January
Sunny days
265
days per year
Snow days
8
days per year

14 day forecast

Friday
5 Apr
86%
11°C4°C
12 Apr
84%
20°C9°C
Saturday
6 Apr
89%
11°C2°C
13 Apr
19°C8°C
Sunday
7 Apr
14°C3°C
14 Apr
26°C12°C
Monday
8 Apr
19°C4°C
15 Apr
89%
12°C8°C
Tuesday
9 Apr
25°C9°C
16 Apr
14°C7°C
Wednesday
10 Apr
83%
23°C14°C
17 Apr
88%
10°C9°C
Thursday
11 Apr
84%
23°C12°C
18 Apr
89%
10°C8°C

Frequently asked questions

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

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