Cheap Flights From Los Angeles - Ontario Intl. (ONT) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Ontario (ONT) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $358 round trip and CA $180 one way. Prices and availability subject to change. Additional terms may apply.

Mon., Jul. 21 - Thu., Jul. 24
ONT
Ontario
SEA
Seattle
CA $358 Roundtrip, found 4 days ago
CA $358
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon., Jul. 21 from Ontario to Seattle, returning Thu., Jul. 24, priced at CA $358 found 4 days ago
Mon., Jul. 21 - Thu., Jul. 24
ONT
Ontario
SEA
Seattle
CA $372 Roundtrip, found 4 days ago
CA $372
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon., Jul. 21 from Ontario to Seattle, returning Thu., Jul. 24, priced at CA $372 found 4 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $392 Roundtrip, found 3 days ago
CA $392
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $392 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $394 Roundtrip, found 3 days ago
CA $394
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $394 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $406 Roundtrip, found 3 days ago
CA $406
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $406 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $434 Roundtrip, found 3 days ago
CA $434
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $434 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $442 Roundtrip, found 3 days ago
CA $442
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $442 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $443 Roundtrip, found 3 days ago
CA $443
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $443 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $455 Roundtrip, found 3 days ago
CA $455
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $455 found 3 days ago
Thu., May 29 - Sun., Jun. 1
ONT
Ontario
SEA
Seattle
CA $483 Roundtrip, found 3 days ago
CA $483
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Thu., May 29 from Ontario to Seattle, returning Sun., Jun. 1, priced at CA $483 found 3 days ago

Popular Flight Routes from Ontario (ONT)

Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario (ONT) today with the cheap prices from Travelocity!

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle(SEA) today with the cheap prices from Travelocity!

*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.