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

  • Hawaiian Airlines

    Hawaiian Airlines

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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 $296 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Aug. 16 - Sat, Aug. 23
IAH
Houston
SEA
Seattle
CA $296 Roundtrip, found 2 days ago
CA $296
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Houston to Seattle, returning Sat, Aug. 23, priced at CA $296 found 2 days ago
Hawaiian Airlines
Sat, Sep. 13 - Sat, Sep. 27
IAH
Houston
SEA
Seattle
CA $296 Roundtrip, found 2 days ago
CA $296
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Sep. 13 from Houston to Seattle, returning Sat, Sep. 27, priced at CA $296 found 2 days ago
Alaska Airlines
Sat, Aug. 16 - Sat, Aug. 30
IAH
Houston
SEA
Seattle
CA $297 Roundtrip, found 3 days ago
CA $297
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, Aug. 16 from Houston to Seattle, returning Sat, Aug. 30, priced at CA $297 found 3 days ago
American Airlines
Tue, Oct. 7 - Sat, Oct. 11
IAH
Houston
SEA
Seattle
CA $316 Roundtrip, found 5 days ago
CA $316
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Oct. 7 from Houston to Seattle, returning Sat, Oct. 11, priced at CA $316 found 5 days ago
Delta
Tue, Aug. 19 - Tue, Sep. 2
IAH
Houston
SEA
Seattle
CA $323 Roundtrip, found 2 days ago
CA $323
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Aug. 19 from Houston to Seattle, returning Tue, Sep. 2, priced at CA $323 found 2 days ago
Spirit Airlines
Sat, Aug. 2 - Tue, Aug. 5
IAH
Houston
SEA
Seattle
CA $724 Roundtrip, found 1 day ago
CA $724
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sat, Aug. 2 from Houston to Seattle, returning Tue, Aug. 5, priced at CA $724 found 1 day 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.