Cheap flights from Baltimore to Blake Island from CA $141

View CA $141 flight on Wed, Nov. 12, 2025Opens in a new window

Popular airlines from Baltimore to Blake Island

  • Alaska Airlines

    Alaska Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Hawaiian Airlines

    Hawaiian Airlines

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Cheap flights from Baltimore (WAS) to Blake Island (SEA)

Prices were available within the past 7 days and start at CA $141 for one-way flights and CA $281 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Oct. 16 - Wed, Oct. 22
BWI
Baltimore
SEA
Seattle
CA $281 Roundtrip, found 12 hours ago
CA $281
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Thu, Oct. 16 from Baltimore to Seattle, returning Wed, Oct. 22, priced at CA $281 found 12 hours ago
American Airlines
Tue, Jul. 29 - Tue, Aug. 5
BWI
Baltimore
SEA
Seattle
CA $283 Roundtrip, found 4 days ago
CA $283
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Jul. 29 from Baltimore to Seattle, returning Tue, Aug. 5, priced at CA $283 found 4 days ago
Alaska Airlines
Tue, Aug. 26 - Sat, Aug. 30
BWI
Baltimore
SEA
Seattle
CA $334 Roundtrip, found 3 days ago
CA $334
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug. 26 from Baltimore to Seattle, returning Sat, Aug. 30, priced at CA $334 found 3 days ago
Sun Country Airlines
Thu, Oct. 9 - Thu, Oct. 16
BWI
Baltimore
SEA
Seattle
CA $355 Roundtrip, found 4 days ago
CA $355
Roundtrip
found 4 days ago
Select Sun Country Airlines flight, departing Thu, Oct. 9 from Baltimore to Seattle, returning Thu, Oct. 16, priced at CA $355 found 4 days ago
Delta
Sat, Sep. 27 - Sat, Oct. 11
DCA
Washington
SEA
Seattle
CA $377 Roundtrip, found 1 hour ago
CA $377
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Sep. 27 from Washington to Seattle, returning Sat, Oct. 11, priced at CA $377 found 1 hour ago
Hawaiian Airlines
Sat, Sep. 6 - Sat, Sep. 20
DCA
Washington
SEA
Seattle
CA $377 Roundtrip, found 1 hour ago
CA $377
Roundtrip
found 1 hour ago
Select Hawaiian Airlines flight, departing Sat, Sep. 6 from Washington to Seattle, returning Sat, Sep. 20, priced at CA $377 found 1 hour ago

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

September is typically the cheapest month to fly

From CA $204 - CA $350 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.