Cheap Flight Tickets from Washington (WAS) to Seattle (SEA), Starting at $135

Good to Know: Cheapest and Fastest WAS - SEA Flights

Useful information for finding best airline tickets from Washington All Airport to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$135

WN Southwest Airlines • 1 stop • 13h 50m

Aug 26 – Aug 29

The cheapest round trip flight from Washington to Seattle (WAS-SEA-WAS) is currently $135

🔍 Search Flights

Cheapest Direct Flight

$137

AS Alaska Airlines • nonstop • 9h 2m

Aug 26

The cheapest nonstop flight from Washington to Seattle (WAS-SEA) is currently $137

🔍 Search Flights

Fastest Flight

9h 2m

The fastest nonstop flight from Washington to Seattle (WAS-SEA) takes 9h 2m

Top Airlines Flying from Washington to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Sun Country Airlines (SY)

Sun Country Airlines

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

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

Aug 26 - Aug 29, Economy
WN
Washington → Seattle
13h 50m
- • 1 stop
WN
Washington → Seattle
15h 5m
- • 1 stop
$135
Southwest Airlines
Aug 26 - Aug 29, Economy
AA
Washington → Seattle
9h 7m
- • nonstop
AA
Washington → Seattle
13h 40m
- • 1 stop
$268
American Airlines
Aug 26 - Aug 29, Economy
AS
Washington → Seattle
37h
7:50 AM - 10:29 AM • nonstop
F9
Washington → Seattle
13h 31m
8:53 PM - 8:04 AM • 1 stop
$598
Alaska Airlines
Aug 25 - Aug 28, Economy
DL
Washington → Seattle
12h 20m
5:25 PM - 10:05 PM • 1 stop
DL
Washington → Seattle
12h 10m
7:50 PM - 6:20 AM • 1 stop
$935
Delta Airlines
Aug 25 - Aug 28, Economy
B6
Washington → Seattle
28h 51m
7:59 PM - 10:30 AM • 1 stop
F9
Washington → Seattle
20h 18m
7:06 PM - 10:24 AM • 2 stops
$1162
JetBlue Airways
Aug 26 - Aug 29, Economy
UA
Washington → Seattle
13h 48m
5:15 PM - 10:43 PM • 1 stop
UA
Washington → Seattle
8h 26m
8:10 AM - 4:16 PM • nonstop
$1305
United 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?
WAS
What’s the most popular airline flying from WAS to SEA?
The most popular airline flying from Washington to Seattle are
Can I fly from WAS to SEA non-stop?
Yes, you can fly WAS 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 WAS to SEA Airport?
The earliest flight leaves WAS at 7:50 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 WAS 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 WAS to SEA, which is 2305.73 miles by air.
Which airlines provide the cheapest flights from Washington (WAS) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from WAS were found on B6 : USD 1162
Do I need a passport to fly between WAS and SEA?
No
What’s the latest departure time from WAS to SEA ?
The last flight leaves WAS at 5:5500 pm

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

Origin Airport Washington All Airport, Washington, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 2306 miles

More Flight Options for Washington (WAS) and Seattle (SEA)

Why Fareleaders for WAS to SEA Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Washington to Seattle flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on WAS to SEA flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Washington to Seattle flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Washington (WAS) to Seattle (SEA)
Terms and Conditions*