Cheap flights from Houston to Eastside from CA $136

View CA $136 flight on Tue, Aug. 12, 2025Opens in a new window

Popular airlines from Houston to Eastside

  • Alaska Airlines

    Alaska Airlines

  • Spirit Airlines

    Spirit Airlines

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

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Cheap flights from Houston (HOU) to Eastside (SEA)

Prices were available within the past 7 days and start at CA $136 for one-way flights and CA $253 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Aug. 12 - Sat, Aug. 23
IAH
Houston
SEA
Seattle
CA $253 Roundtrip, found 4 days ago
CA $253
Roundtrip
found 4 days ago
Select Spirit Airlines flight, departing Tue, Aug. 12 from Houston to Seattle, returning Sat, Aug. 23, priced at CA $253 found 4 days ago
Alaska Airlines
Sat, Sep. 6 - Sat, Sep. 20
IAH
Houston
SEA
Seattle
CA $296 Roundtrip, found 5 hours ago
CA $296
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, Sep. 6 from Houston to Seattle, returning Sat, Sep. 20, priced at CA $296 found 5 hours ago
Hawaiian Airlines
Sat, Sep. 13 - Sat, Sep. 27
IAH
Houston
SEA
Seattle
CA $296 Roundtrip, found 5 hours ago
CA $296
Roundtrip
found 5 hours ago
Select Hawaiian Airlines flight, departing Sat, Sep. 13 from Houston to Seattle, returning Sat, Sep. 27, priced at CA $296 found 5 hours ago
Alaska Airlines
Sat, Aug. 16 - Sat, Aug. 30
IAH
Houston
SEA
Seattle
CA $297 Roundtrip, found 12 hours ago
CA $297
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Houston to Seattle, returning Sat, Aug. 30, priced at CA $297 found 12 hours ago
American Airlines
Tue, Oct. 7 - Sat, Oct. 11
IAH
Houston
SEA
Seattle
CA $316 Roundtrip, found 2 days ago
CA $316
Roundtrip
found 2 days ago
Select American Airlines flight, departing Tue, Oct. 7 from Houston to Seattle, returning Sat, Oct. 11, priced at CA $316 found 2 days ago
Delta
Tue, Aug. 19 - Tue, Sep. 2
IAH
Houston
SEA
Seattle
CA $323 Roundtrip, found 5 hours ago
CA $323
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Aug. 19 from Houston to Seattle, returning Tue, Sep. 2, priced at CA $323 found 5 hours ago

Find the cheapest month to fly from Houston (HOU) to Seattle (SEA)

September is typically the cheapest month to fly

From CA $161 - CA $348 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.