Seattle to Washington, D.C. flights from $123

Flights starting at $123. Choose between United Airlines, Delta Air Lines, or Frontier Airlines to find the best price.

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Cheapest one-way trip

$123

Cheapest nonstop round-trip

$131

Cheapest round-trip

$227

Average round-trip

$287

Nonstop flights in December

$131 – $1209

Round trips

Seattle SEAWashington, D.C. IAD

Alaska Airlines

$227
Seattle SEAWashington, D.C. IAD

Alaska Airlines

$227

Updated:

2302 miles
Distance
Duration
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Travelers usually depart from Seattle–Tacoma International, Seattle, WA - King Street Station, Seattle, WA - Greyhound Station, Seattle, WA - Ferry Terminal, or Boeing Field when they travel from Seattle to Washington, D.C.. Book your trip to arrive at Baltimore–Washington International, Washington Dulles International, Ronald Reagan Washington National, Washington, DC - Union Station, or Washington, DC - Rosslyn. The distance between Seattle and Washington, D.C. is 3705 km. The most popular airlines for this route are United Airlines, Delta Air Lines, Frontier Airlines, Alaska Airlines, and Spirit Airlines. Seattle and Washington, D.C. have 401 direct flights per week. When you arrive at Washington, D.C., consider visiting National Mall, Lincoln Memorial, and Independence National Historical Park, PA, USA.

Weekly direct flights

MondaysTuesdaysWednesdaysThursdaysFridaysSaturdaysSundays
Direct flights9775588
Fly direct with

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

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

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

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

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
United AirlinesUALUAYesNo
Delta Air LinesDALDLYesOpens 24 days before flight
Closes 1 hours before flight
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Alaska AirlinesASAASYesOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
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 Seattle to Washington, D.C.?
A one-way nonstop (direct) flight between Seattle and Washington, D.C. takes around 4.9 hours.
What is the flight distance between Seattle and Washington, D.C.?
The flight distance between Seattle and Washington, D.C. is 3705 km.
What airlines offer nonstop (direct) flights between Seattle and Washington, D.C.?
Several carriers operate flights between Seattle and Washington, D.C.. Airlines offering nonstop (direct) flights include Delta Air Lines, Alaska Airlines, United Airlines.
What are the most popular routes to and from Seattle?
Travelers frequently search for route combinations, such as Seattle and Denver, Las Vegas, Mexico City, Orlando, Atlanta, Austin, London, Houston, Paris, Barcelona, Rome, Los Angeles, Phoenix, Detroit, Madrid, Dublin, Minneapolis, Cleveland, Guadalajara, Salt Lake City.
What are the most popular routes to and from Washington, D.C.?
Travelers frequently search for route combinations, such as Washington, D.C. and Denver, San Francisco, Orlando, Los Angeles, Las Vegas, Atlanta, Austin, Salt Lake City, Phoenix, London, Fort Lauderdale, Chicago, San Diego, Houston, New Orleans, Boston, Paris, Dallas, Tampa, Miami.
Which airports are there in Seattle?
Seattle is mainly served by Seattle–Tacoma International. But there are other airports nearby, including Kenmore Air Harbor Seaplane Base, Boeing Field.
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 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 buses and trains depart from Seattle?
A number of bus and train companies depart from Seattle, including Greyhound.
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.?
What flights operate between Seattle and Washington, D.C.?
How many airports are there near Seattle?
How many airports are there near Washington, D.C.?
Is it possible to reach Seattle by bus or train?
What time do nonstop (direct) flights between Seattle and Washington, D.C. depart?
What time do nonstop (direct) flights between Seattle and Washington, D.C. arrive?
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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