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Find the best flight from Ontario

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Great deals from Ontario

We’ve searched 100s of deals recently found by travellers.*
Ontario, CA (ONT) Seattle, WA (SEA)
Sat, 22/6 - Tue, 25/6
Alaska Airlines - Roundtrip, Economy
US$187
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Ontario, CA (ONT) San Francisco, CA (SFO)
Fri, 26/7 - Mon, 29/7
United Airlines - Roundtrip, Economy
US$196
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Ontario, CA (ONT) Denver, CO (DEN)
Tue, 30/7 - Fri, 2/8
Frontier Airlines - Roundtrip, Economy
US$212
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Ontario, CA (ONT) Las Vegas, NV (LAS)
Sat, 15/6 - Wed, 19/6
American Airlines - Roundtrip, Economy
US$224
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Ontario, CA (ONT) Dallas, TX (DFW)
Thu, 4/7 - Tue, 9/7
Alaska Airlines - Roundtrip, Economy
US$237
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Ontario, CA (ONT) Portland, OR (PDX)
Tue, 10/9 - Sat, 28/9
Alaska Airlines - Roundtrip, Economy
US$243
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Ontario, CA (ONT) Phoenix, AZ (PHX)
Fri, 21/6 - Tue, 25/6
American Airlines - Roundtrip, Economy
US$253
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Ontario, CA (ONT) Vancouver, CA (YVR)
Tue, 14/1 - Tue, 21/1
United Airlines - Roundtrip, Economy
US$253
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*Prices are based on round trip travel with returns between 1-21 days after departure. These are the best fares found by travellers who searched TripAdvisor and a select group of our fare search partners in the past 72 hours. Ticket prices and seat availability change rapidly and cannot be guaranteed.