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

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

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were CA $259 round trip and CA $138 one way. Prices and availability subject to change. Additional terms may apply.

Wed., Aug. 20 - Mon., Aug. 25
SEA
Seattle
ONT
Ontario
CA $259 Roundtrip, found 12 hours ago
CA $259
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed., Aug. 20 from Seattle to Ontario, returning Mon., Aug. 25, priced at CA $259 found 12 hours ago
Wed., Aug. 20 - Mon., Aug. 25
SEA
Seattle
ONT
Ontario
CA $272 Roundtrip, found 12 hours ago
CA $272
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed., Aug. 20 from Seattle to Ontario, returning Mon., Aug. 25, priced at CA $272 found 12 hours ago
Mon., Aug. 18 - Wed., Aug. 20
SEA
Seattle
ONT
Ontario
CA $286 Roundtrip, found 22 hours ago
CA $286
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Mon., Aug. 18 from Seattle to Ontario, returning Wed., Aug. 20, priced at CA $286 found 22 hours ago
Mon., Aug. 18 - Wed., Aug. 20
SEA
Seattle
ONT
Ontario
CA $286 Roundtrip, found 22 hours ago
CA $286
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Mon., Aug. 18 from Seattle to Ontario, returning Wed., Aug. 20, priced at CA $286 found 22 hours ago
Wed., Aug. 20 - Mon., Aug. 25
SEA
Seattle
ONT
Ontario
CA $299 Roundtrip, found 12 hours ago
CA $299
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed., Aug. 20 from Seattle to Ontario, returning Mon., Aug. 25, priced at CA $299 found 12 hours ago
Fri., Oct. 31 - Sun., Nov. 2
SEA
Seattle
ONT
Ontario
CA $300 Roundtrip, found 5 days ago
CA $300
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Oct. 31 from Seattle to Ontario, returning Sun., Nov. 2, priced at CA $300 found 5 days ago
Wed., Aug. 20 - Mon., Aug. 25
SEA
Seattle
ONT
Ontario
CA $312 Roundtrip, found 12 hours ago
CA $312
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Wed., Aug. 20 from Seattle to Ontario, returning Mon., Aug. 25, priced at CA $312 found 12 hours ago
Sun., Aug. 10 - Sat., Aug. 16
SEA
Seattle
ONT
Ontario
CA $314 Roundtrip, found 6 days ago
CA $314
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sun., Aug. 10 from Seattle to Ontario, returning Sat., Aug. 16, priced at CA $314 found 6 days ago
Sun., Aug. 24 - Thu., Aug. 28
SEA
Seattle
ONT
Ontario
CA $328 Roundtrip, found 22 hours ago
CA $328
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Sun., Aug. 24 from Seattle to Ontario, returning Thu., Aug. 28, priced at CA $328 found 22 hours ago
Fri., Oct. 31 - Sun., Nov. 2
SEA
Seattle
ONT
Ontario
CA $329 Roundtrip, found 5 days ago
CA $329
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri., Oct. 31 from Seattle to Ontario, returning Sun., Nov. 2, priced at CA $329 found 5 days ago

Los Angeles - Ontario Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
Hotel Seville

Hotel Seville

2 out of 5
per person
Jul 11 - Jul 18
found 14 hours ago
Roundtrip non-stop flight included
Seattle (SEA) to Ontario (ONT)
Delta Hotels by Marriott Ontario Airport

Delta Hotels by Marriott Ontario Airport

3 out of 5
per person
Jul 11 - Jul 18
found 14 hours ago
Roundtrip non-stop flight included
Seattle (SEA) to Ontario (ONT)
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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!

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!

*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.