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 $244 round trip and CA $138 one way. Prices and availability subject to change. Additional terms may apply.

Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $244 Roundtrip, found 1 day ago
CA $244
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $244 found 1 day ago
Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $257 Roundtrip, found 1 day ago
CA $257
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $257 found 1 day ago
Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $270 Roundtrip, found 1 day ago
CA $270
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $270 found 1 day ago
Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $272 Roundtrip, found 1 day ago
CA $272
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $272 found 1 day ago
Sun., Aug. 24 - Thu., Aug. 28
ONT
Ontario
SEA
Seattle
CA $273 Roundtrip, found 8 hours ago
CA $273
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sun., Aug. 24 from Ontario to Seattle, returning Thu., Aug. 28, priced at CA $273 found 8 hours ago
Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $285 Roundtrip, found 1 day ago
CA $285
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $285 found 1 day ago
Sun., Aug. 24 - Thu., Aug. 28
ONT
Ontario
SEA
Seattle
CA $286 Roundtrip, found 8 hours ago
CA $286
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sun., Aug. 24 from Ontario to Seattle, returning Thu., Aug. 28, priced at CA $286 found 8 hours ago
Sun., Aug. 24 - Thu., Aug. 28
ONT
Ontario
SEA
Seattle
CA $299 Roundtrip, found 8 hours ago
CA $299
Roundtrip
found 8 hours ago
Select Alaska Airlines flight, departing Sun., Aug. 24 from Ontario to Seattle, returning Thu., Aug. 28, priced at CA $299 found 8 hours ago
Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $312 Roundtrip, found 1 day ago
CA $312
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $312 found 1 day ago
Sat., Aug. 23 - Sat., Aug. 30
ONT
Ontario
SEA
Seattle
CA $326 Roundtrip, found 1 day ago
CA $326
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat., Aug. 23 from Ontario to Seattle, returning Sat., Aug. 30, priced at CA $326 found 1 day 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.