Cheap Flight Tickets from Washington (DCA) to Seattle (SEA), Starting at $311

Good to Know: Cheapest and Fastest DCA - SEA Flights

Useful information for finding best airline tickets from Ronald Reagan Washington National to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$341

AS Alaska Airlines • nonstop • 9h 11m

Sep 20 – Sep 24

The cheapest round trip flight from Washington to Seattle (DCA-SEA-DCA) is currently $341

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Cheapest One way Flight

$453

AS Alaska Airlines • 1 stop • 2h 58m

Sep 25

The cheapest one way flight from Washington to Seattle (DCA-SEA) is currently $453

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Cheapest Direct Flight

$311

AS Alaska Airlines • nonstop • 9h 11m

Sep 20

The cheapest nonstop flight from Washington to Seattle (DCA-SEA) is currently $311

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Fastest Flight

2h 58m

The fastest nonstop flight from Washington to Seattle (DCA-SEA) takes 2h 58m

Top Airlines Flying from Washington to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

Alaska Airlines -AS

Alaska Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Latest Flight Deals from Washington (DCA) to Seattle (SEA)

Compare and book low fare round-trip air tickets from Washington to Seattle. Ideal for travelers with confirmed return itineraries.

Sep 20 - Sep 24, Economy
AS
Washington → Seattle
9h 11m
5:00 PM - 7:51 PM • nonstop
AS
Washington → Seattle
14h 6m
6:00 AM - 5:46 PM • 1 stop
$341
Alaska Airlines
Sep 20 - Sep 24, Economy
AS
Washington → Seattle
17h 33m
10:59 AM - 6:52 PM • 1 stop
AS
Washington → Seattle
8h 27m
10:23 PM - 6:30 AM • nonstop
$362
Alaska Airlines
Sep 20 - Sep 24, Economy
AS
Washington → Seattle
15h 52m
10:59 AM - 5:51 PM • 1 stop
AS
Washington → Seattle
8h 27m
10:23 PM - 6:30 AM • nonstop
$362
Alaska Airlines
Sep 20 - Sep 24, Economy
AS
Washington → Seattle
19h 13m
10:59 AM - 7:52 PM • 1 stop
AS
Washington → Seattle
17h
7:40 AM - 9:00 PM • 1 stop
$394
Alaska Airlines
Sep 20 - Sep 24, Economy
AS
Washington → Seattle
17h 33m
9:30 AM - 5:23 PM • 1 stop
AS
Washington → Seattle
8h 27m
10:23 PM - 6:30 AM • nonstop
$405
Alaska Airlines
Sep 20 - Sep 24, Economy
AS
Washington → Seattle
17h 33m
10:59 AM - 6:52 PM • 1 stop
AS
Washington → Seattle
36h 51m
7:49 PM - 9:00 PM • 2 stops
$412
Alaska Airlines

Fly from Washington to Seattle with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Washington to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Washington to Seattle Flights

What are the airports in Washington?
IAD,BWI,DCA
What’s the most popular airline flying from DCA to SEA?
The most popular airline flying from Washington to Seattle are
Can I fly from DCA to SEA non-stop?
Yes, you can fly DCA to SEA non-stop on
Which airlines fly nonstop between Washington and Seattle?
The non-stop flights between Washington and Seattle are .
What’s the earliest departure time from DCA to SEA Airport?
The earliest flight leaves DCA at 6:00 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Washington to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DCA to SEA?
Read the fare rules of the Washington to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Washington and Seattle?
operate flights between Washington and Seattle
How long does a flight from Washington to Seattle take?
It takes approximately 5 hour to fly non-stop from DCA to SEA, which is 2328.47 miles by air.
Which airlines provide the cheapest flights from Washington (DCA) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from DCA were found on AS : USD 1520
Do I need a passport to fly between DCA and SEA?
No
What’s the latest departure time from DCA to SEA ?
The last flight leaves DCA at 6:59 pm

Washington (DCA) to Seattle (SEA): Airport Information

Origin Airport Ronald Reagan Washington National , Washington, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 2328 miles

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