An Alaska Airlines plane taking off with a snow-capped mountain in the background.

$112 Cheap Flights from Washington (WAS) to Seattle (SEA)

Photo by Port of Seattle
Open Photo by Port of Seattle

Cheap Flights from Washington to Seattle (WAS-SEA)

Prices were available within the past 7 days and start at $112 for one-way flights and $232 for roundtrip, for the period specified. Prices and availability are subject to change.
United
Mon, Nov 9 - Tue, Nov 17
BWI
Baltimore
SEA
Seattle
$232
Roundtrip
Found 1 hour ago
Select United flight, departing Mon, Nov 9 from Baltimore to Seattle, returning Tue, Nov 17, priced at $232 Found 1 hour ago
Southwest Airlines
Wed, Nov 25 - Thu, Dec 3
BWI
Baltimore
SEA
Seattle
$237
Roundtrip
Found 1 hour ago
Select Southwest Airlines flight, departing Wed, Nov 25 from Baltimore to Seattle, returning Thu, Dec 3, priced at $237 Found 1 hour ago
American Airlines
Wed, Dec 16 - Sat, Jan 9
BWI
Baltimore
SEA
Seattle
$237
Roundtrip
Just found
Select American Airlines flight, departing Wed, Dec 16 from Baltimore to Seattle, returning Sat, Jan 9, priced at $237 Just found
Southwest Airlines
Wed, Dec 16 - Sat, Jan 9
BWI
Baltimore
SEA
Seattle
$237
Roundtrip
Just found
Select Southwest Airlines flight, departing Wed, Dec 16 from Baltimore to Seattle, returning Sat, Jan 9, priced at $237 Just found
Southwest Airlines
Tue, Dec 15 - Wed, Dec 23
BWI
Baltimore
SEA
Seattle
$238
Roundtrip
Found 1 hour ago
Select Southwest Airlines flight, departing Tue, Dec 15 from Baltimore to Seattle, returning Wed, Dec 23, priced at $238 Found 1 hour ago
Southwest Airlines
Wed, Dec 16 - Sat, Jan 9
BWI
Baltimore
SEA
Seattle
$242
Roundtrip
Just found
Select Southwest Airlines flight, departing Wed, Dec 16 from Baltimore to Seattle, returning Sat, Jan 9, priced at $242 Just found
United
Mon, Dec 7 - Tue, Dec 15
BWI
Baltimore
SEA
Seattle
$242
Roundtrip
Found 1 hour ago
Select United flight, departing Mon, Dec 7 from Baltimore to Seattle, returning Tue, Dec 15, priced at $242 Found 1 hour ago
Southwest Airlines
Sat, Dec 5 - Wed, Dec 9
BWI
Baltimore
SEA
Seattle
$243
Roundtrip
Found 8 hours ago
Select Southwest Airlines flight, departing Sat, Dec 5 from Baltimore to Seattle, returning Wed, Dec 9, priced at $243 Found 8 hours ago
Delta
Tue, Nov 17 - Tue, Nov 17
BWI
Baltimore
SEA
Seattle
$263
Roundtrip
Found 2 hours ago
Select Delta flight, departing Tue, Nov 17 from Baltimore to Seattle, returning Tue, Nov 17, priced at $263 Found 2 hours ago
Bargain Flight
Sat, Oct 24 - Tue, Oct 27
IAD
Washington
SEA
Seattle
$273
Roundtrip
Found 1 hour ago
Select Bargain Flight flight, departing Sat, Oct 24 from Washington to Seattle, returning Tue, Oct 27, priced at $273 Found 1 hour ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $298
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $298

Find the cheapest month to fly from Washington (WAS) to Seattle (SEA)

October is typically the cheapest month to fly

From $196 - $396 per traveler.

Travel information

Origin airport
Ronald Reagan Washington National Airport
Destination airport
Seattle-Tacoma International Airport
Distance
2,322 miles away
Airlines serving
Alaska Airlines, Delta, American Airlines, United, Southwest Airlines, JetBlue Airways, Frontier Airlines
Popular airline
Alaska Airlines
Roundtrip price
$232
Average flight time
5 hours 54 mins
*Available to One Key members.