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

$119 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 $119 for one-way flights and $238 for roundtrip, for the period specified. Prices and availability are subject to change.
Southwest Airlines
Tue, Dec 8 - Tue, Dec 15
BWI
Baltimore
SEA
Seattle
$238
Roundtrip
Found 3 hours ago
Select Southwest Airlines flight, departing Tue, Dec 8 from Baltimore to Seattle, returning Tue, Dec 15, priced at $238 Found 3 hours ago
Southwest Airlines
Tue, Dec 8 - Tue, Dec 15
BWI
Baltimore
SEA
Seattle
$243
Roundtrip
Found 3 hours ago
Select Southwest Airlines flight, departing Tue, Dec 8 from Baltimore to Seattle, returning Tue, Dec 15, priced at $243 Found 3 hours ago
Southwest Airlines
Tue, Nov 3 - Thu, Nov 12
BWI
Baltimore
SEA
Seattle
$248
Roundtrip
Found 5 hours ago
Select Southwest Airlines flight, departing Tue, Nov 3 from Baltimore to Seattle, returning Thu, Nov 12, priced at $248 Found 5 hours ago
Southwest Airlines
Wed, Oct 28 - Mon, Nov 2
BWI
Baltimore
SEA
Seattle
$254
Roundtrip
Found 2 hours ago
Select Southwest Airlines flight, departing Wed, Oct 28 from Baltimore to Seattle, returning Mon, Nov 2, priced at $254 Found 2 hours ago
Southwest Airlines
Tue, Dec 8 - Tue, Dec 15
BWI
Baltimore
SEA
Seattle
$254
Roundtrip
Found 3 hours ago
Select Southwest Airlines flight, departing Tue, Dec 8 from Baltimore to Seattle, returning Tue, Dec 15, priced at $254 Found 3 hours ago
Southwest Airlines
Mon, Dec 7 - Thu, Dec 17
BWI
Baltimore
SEA
Seattle
$259
Roundtrip
Found 4 hours ago
Select Southwest Airlines flight, departing Mon, Dec 7 from Baltimore to Seattle, returning Thu, Dec 17, priced at $259 Found 4 hours ago
Alaska Airlines
Sat, Jan 30 - Sun, Jan 31
IAD
Washington
SEA
Seattle
$347
Roundtrip
Found 3 days ago
Select Alaska Airlines flight, departing Sat, Jan 30 from Washington to Seattle, returning Sun, Jan 31, priced at $347 Found 3 days ago
Bargain Flight
Fri, Feb 5 - Sat, Feb 6
IAD
Washington
SEA
Seattle
$366
Roundtrip
Found 6 days ago
Select Bargain Flight flight, departing Fri, Feb 5 from Washington to Seattle, returning Sat, Feb 6, priced at $366 Found 6 days ago
Delta
Thu, Nov 26 - Thu, Nov 26
IAD
Washington
SEA
Seattle
$372
Roundtrip
Found 1 day ago
Select Delta flight, departing Thu, Nov 26 from Washington to Seattle, returning Thu, Nov 26, priced at $372 Found 1 day ago
United
Wed, Feb 10 - Wed, Feb 17
IAD
Washington
SEA
Seattle
$377
Roundtrip
Just found
Select United flight, departing Wed, Feb 10 from Washington to Seattle, returning Wed, Feb 17, priced at $377 Just found

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 $290
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $290

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
Baltimore Washington Intl. Airport
Destination airport
Seattle-Tacoma International Airport
Distance
2,328 miles away
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United, Sun Country Airlines
Popular airline
Alaska Airlines
Roundtrip price
$238
Average flight time
5 hours 44 mins
*Available to One Key members.