$169 Cheap Alaska Airlines flights Baltimore (BWI) to Seattle (SEA)

View $169 flight on Wed, Apr 29, 2026Opens in a new window

$169 Cheap Alaska Airlines flights Baltimore (BWI) to Seattle (SEA)

Prices were available within the past 7 days and start at $169 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Apr 29 - Sat, May 9
BWI
Baltimore
SEA
Seattle
$268 Roundtrip, found 16 hours ago
$268
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Wed, Apr 29 from Baltimore to Seattle, returning Sat, May 9, priced at $268 found 16 hours ago
Alaska Airlines
Wed, Apr 29 - Sat, May 9
BWI
Baltimore
SEA
Seattle
$328 Roundtrip, found 16 hours ago
$328
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Wed, Apr 29 from Baltimore to Seattle, returning Sat, May 9, priced at $328 found 16 hours ago
Alaska Airlines
Wed, Apr 29 - Sat, May 9
BWI
Baltimore
SEA
Seattle
$338 Roundtrip, found 16 hours ago
$338
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Wed, Apr 29 from Baltimore to Seattle, returning Sat, May 9, priced at $338 found 16 hours ago

Find the cheapest month to fly from Baltimore (BWI) to Seattle (SEA)

February is typically the cheapest month to fly

From $155 - $255 per traveler.
Flights from Baltimore (BWI) to Seattle (SEA)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, United
Popular airline
Delta
Distance
3725 km
Average flight time
2 hours 58 mins