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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 $148 round trip and CA $93 one way. Prices and availability subject to change. Additional terms may apply.
Tue., 16 Jul. - Wed., 17 Jul.
ONT
Ontario
SEA
Seattle
CA $148 Roundtrip, found 2 days ago
CA $148
Roundtrip
found 2 days ago
Tue., 16 Jul. - Thu., 18 Jul.
ONT
Ontario
SEA
Seattle
CA $164 Roundtrip, found 2 days ago
CA $164
Roundtrip
found 2 days ago
Sat., 13 Jul. - Wed., 17 Jul.
ONT
Ontario
SEA
Seattle
CA $176 Roundtrip, found 2 days ago
CA $176
Roundtrip
found 2 days ago
Mon., 9 Sep. - Wed., 18 Sep.
ONT
Ontario
SEA
Seattle
CA $201 Roundtrip, found 5 hours ago
CA $201
Roundtrip
found 5 hours ago
Wed., 10 Jul. - Wed., 17 Jul.
ONT
Ontario
SEA
Seattle
CA $203 Roundtrip, found 2 days ago
CA $203
Roundtrip
found 2 days ago
Thu., 5 Sep. - Thu., 12 Sep.
ONT
Ontario
SEA
Seattle
CA $215 Roundtrip, found 5 days ago
CA $215
Roundtrip
found 5 days ago
Wed., 10 Jul. - Thu., 18 Jul.
ONT
Ontario
SEA
Seattle
CA $219 Roundtrip, found 2 days ago
CA $219
Roundtrip
found 2 days ago
Thu., 11 Jul. - Wed., 17 Jul.
ONT
Ontario
SEA
Seattle
CA $230 Roundtrip, found 2 days ago
CA $230
Roundtrip
found 2 days ago
Mon., 9 Sep. - Wed., 18 Sep.
ONT
Ontario
SEA
Seattle
CA $241 Roundtrip, found 5 hours ago
CA $241
Roundtrip
found 5 hours ago
Mon., 30 Sep. - Fri., 4 Oct.
ONT
Ontario
SEA
Seattle
CA $242 Roundtrip, found 4 days ago
CA $242
Roundtrip
found 4 days ago
Frequently asked questions
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!
Top Airlines Routes To SEA
- WestJet Ottawa to Seattle
- WestJet Calgary to Seattle
- WestJet Kelowna to Seattle
- Alaska Airlines Detroit to Seattle
- WestJet Winnipeg to Seattle
- Qatar Airways Delhi to Seattle
- Alaska Airlines Victoria to Seattle
- WestJet Montreal to Seattle
- Alaska Airlines Vancouver to Seattle
- WestJet Abbotsford to Seattle
- WestJet Ottawa to Seattle
- WestJet Calgary to Seattle
- WestJet Kelowna to Seattle
- Alaska Airlines Detroit to Seattle
- WestJet Winnipeg to Seattle
- Qatar Airways Delhi to Seattle
- Alaska Airlines Victoria to Seattle
- WestJet Montreal to Seattle
- Alaska Airlines Vancouver to Seattle
- WestJet Abbotsford to Seattle
Most Popular
Flights
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