Cheap flights from Washington, D.C. to Seattle

Flights starting at £82. Choose between United Airlines, Delta Air Lines, or Alaska Airlines to find the best price.

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Tips to know when travelling to Seattle

Cheapest one-way trip

£82

Cheapest nonstop round-trip

£197

Cheapest round-trip

£191

Average round-trip

£276

Nonstop flights in December

£197 – £967

Round trips

Washington, D.C. IADSeattle SEA

United Airlines

£191
Washington, D.C. IADSeattle SEA

United Airlines

£191

Updated:

3705 km
Distance
Duration
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Travelers usually depart from Baltimore–Washington International, Washington Dulles International, Ronald Reagan Washington National, Washington, DC - Union Station, or Washington, DC - Rosslyn when they travel from Washington, D.C. to Seattle. Book your trip to arrive at Seattle–Tacoma International, Seattle, WA - King Street Station, Seattle, WA - Greyhound Station, Seattle, WA - Ferry Terminal, or Boeing Field. The distance between Washington, D.C. and Seattle is 3705 km. The most popular airlines for this route are United Airlines, Delta Air Lines, Alaska Airlines, Frontier Airlines, and Spirit Airlines. Washington, D.C. and Seattle have 401 direct flights per week.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights8673778
Fly direct with

Alaska Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

Delta Air Lines on Mondays, Wednesdays, Fridays, Saturdays, and Sundays.

United Airlines on Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays, and Sundays.

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASYesOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight

Seattle travel tips

1) Don’t get surprised meeting freaks and crankeries on the streets of Seattle

Though Seattle is considered to be grey, colourful characters compensate for the lack of bright colours. Citizens of Seattle hate stereotypes. For example, right at the airport, you can notice rocking chairs instead of the regular ones. Streets are full of freaks, looking bodacious and eye-catching. Don’t get surprised! Just feel the vibe of this strange city deeply!

2) How can Seattle CityPASS come in handy?

If you want to visit all the top attractions and save some money, Seattle CityPASS will come in handy. The pass gives admission to top attractions day and night. Some transportation tips, maps, and coupons are included to make your travelling experience in Seattle stress-free and most pleasant.

3) Green Lake is a nice escape for sunny weather in Seattle

When the weather is sunny and it’s not a frequent occasion, by the way, it’s impossible to keep Seattleites at home. They go outside and perform different activities. The favourite place of locals is Green Lake, the freshwater lake in the centre of the city. Sunbathe, walk or ride a bicycle, all activities are possible near the lake.

United States COVID-19 travel restrictions

Your trip summary

Most travelers from Baltimore, BWI can enter Seattle, SEA.

Departure

Additional information
  • Masks are recommended in certain settings

Information is provided as guidance only and accurate at the time of publishing. Always check government websites and airline materials before booking and traveling.

Learn more about COVID-19 restrictions in United States in our dedicated Stories article.

Frequently asked questions

How long does it take to travel from Washington, D.C. to Seattle?
A one-way nonstop (direct) flight between Washington, D.C. and Seattle takes around 6.0 hours.
What is the flight distance between Washington, D.C. and Seattle?
The flight distance between Washington, D.C. and Seattle is 3705 km.
What airlines offer nonstop (direct) flights between Washington, D.C. and Seattle?
Several carriers operate flights between Washington, D.C. and Seattle. Airlines offering nonstop (direct) flights include Delta Air Lines, Alaska Airlines, United Airlines.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and London, Orlando, San Salvador, Toronto, Manchester, San Francisco, Boston, San Juan, New York, Austin, Atlanta, Los Angeles, Denver, New Orleans, Edinburgh, Fort Lauderdale, Las Vegas, Vilnius, Phoenix, Houston.
What are the most popular routes to and from Seattle?
Travelers frequently search for route combinations, such as Seattle and London, Dublin, Manila, Bangkok, Tallinn, Vilnius, Detroit, New York, Manchester, Melbourne, Los Angeles, Chicago, Paris, Denver, Hong Kong, Toronto, Denpasar, Atlanta, Dallas, San Salvador.
Which airports are there in Washington, D.C.?
Washington, D.C. is mainly served by Baltimore–Washington International. But there are other airports nearby, including Washington Dulles International, Ronald Reagan Washington National.
What airports are near Washington, D.C.?
The main airport in Washington, D.C. is Baltimore–Washington International. It is also served by Philadelphia International, Norfolk International, Richmond International, Trenton–Mercer, Harrisburg International, Lehigh Valley International, Atlantic City International, Hagerstown Regional, Shenandoah Valley Regional, Altoona–Blair County.
What airports are near Seattle?
The main airport in Seattle is Seattle–Tacoma International. It is also served by Portland International, Vancouver International, Bellingham International, Paine Field Everett, Abbotsford International, Yakima Air Terminal, Pangborn Memorial, Victoria Inner Harbour SPB, Friday Harbor Airport, Vancouver Harbour Flight Centre.
What buses and trains depart from Washington, D.C.?
A number of bus and train companies depart from Washington, D.C., including Peter Pan Bus, Amtrak train, Greyhound.
Is it possible to combine flights, buses, and trains in one itinerary when traveling between Washington, D.C. and Seattle?
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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?
Is it possible to reach Washington, D.C. by bus or train?
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?

Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.

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