Cheap Flights From Baltimore Washington Intl. Thurgood Marshall (BWI) To Seattle - Tacoma Intl. (SEA)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Baltimore (BWI) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $240 round trip and CA $134 one way. Prices and availability subject to change. Additional terms may apply.

Thu., May 29 - Wed., Jun. 4
BWI
Baltimore
SEA
Seattle
CA $240 Roundtrip, found 1 day ago
CA $240
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu., May 29 from Baltimore to Seattle, returning Wed., Jun. 4, priced at CA $240 found 1 day ago
Wed., Jun. 4 - Sat., Jun. 14
BWI
Baltimore
SEA
Seattle
CA $296 Roundtrip, found 5 hours ago
CA $296
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Wed., Jun. 4 from Baltimore to Seattle, returning Sat., Jun. 14, priced at CA $296 found 5 hours ago
Thu., May 29 - Wed., Jun. 4
BWI
Baltimore
SEA
Seattle
CA $305 Roundtrip, found 1 day ago
CA $305
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu., May 29 from Baltimore to Seattle, returning Wed., Jun. 4, priced at CA $305 found 1 day ago
Thu., May 29 - Thu., Jun. 5
BWI
Baltimore
SEA
Seattle
CA $318 Roundtrip, found 2 days ago
CA $318
Roundtrip
found 2 days ago
Select Delta flight, departing Thu., May 29 from Baltimore to Seattle, returning Thu., Jun. 5, priced at CA $318 found 2 days ago
Mon., Jun. 2 - Tue., Jun. 10
BWI
Baltimore
SEA
Seattle
CA $324 Roundtrip, found 2 days ago
CA $324
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Mon., Jun. 2 from Baltimore to Seattle, returning Tue., Jun. 10, priced at CA $324 found 2 days ago
Sat., May 31 - Sat., Jun. 7
BWI
Baltimore
SEA
Seattle
CA $329 Roundtrip, found 2 days ago
CA $329
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Sat., May 31 from Baltimore to Seattle, returning Sat., Jun. 7, priced at CA $329 found 2 days ago
Thu., May 29 - Wed., Jun. 4
BWI
Baltimore
SEA
Seattle
CA $333 Roundtrip, found 1 day ago
CA $333
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Thu., May 29 from Baltimore to Seattle, returning Wed., Jun. 4, priced at CA $333 found 1 day ago
Fri., Jun. 20 - Mon., Jun. 23
BWI
Baltimore
SEA
Seattle
CA $335 Roundtrip, found 1 day ago
CA $335
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Fri., Jun. 20 from Baltimore to Seattle, returning Mon., Jun. 23, priced at CA $335 found 1 day ago
Wed., May 28 - Thu., Jun. 5
BWI
Baltimore
SEA
Seattle
CA $355 Roundtrip, found 2 days ago
CA $355
Roundtrip
found 2 days ago
Select Delta flight, departing Wed., May 28 from Baltimore to Seattle, returning Thu., Jun. 5, priced at CA $355 found 2 days ago
Mon., Jun. 2 - Tue., Jun. 10
BWI
Baltimore
SEA
Seattle
CA $357 Roundtrip, found 2 days ago
CA $357
Roundtrip
found 2 days ago
Select Spirit Airlines flight, departing Mon., Jun. 2 from Baltimore to Seattle, returning Tue., Jun. 10, priced at CA $357 found 2 days ago
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.