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Find the best flight to Ontario airport (ONT)

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Great deals to Ontario Intl Airport

We’ve searched 100s of deals recently found by travellers.*
San Francisco, CA (SFO) Ontario, CA (ONT)
Tue, 25/6 - Thu, 27/6
United Airlines - Roundtrip, Economy
US$195
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Seattle, WA (SEA) Ontario, CA (ONT)
Tue, 2/7 - Sat, 13/7
United Airlines - Roundtrip, Economy
US$214
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Phoenix, AZ (PHX) Ontario, CA (ONT)
Sat, 31/8 - Mon, 2/9
American Airlines - Roundtrip, Economy
US$243
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Houston, TX (HOU) Ontario, CA (ONT)
Thu, 30/5 - Fri, 31/5
American Airlines - Roundtrip, Economy
US$253
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Las Vegas, NV (LAS) Ontario, CA (ONT)
Sat, 15/6 - Mon, 17/6
American Airlines - Roundtrip, Economy
US$273
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Sacramento, CA (SAC) Ontario, CA (ONT)
Thu, 6/6 - Sat, 8/6
American Airlines - Roundtrip, Economy
US$287
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Chicago, IL (CHI) Ontario, CA (ONT)
Wed, 29/5 - Fri, 31/5
United Airlines - Roundtrip, Economy
US$314
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New York City, NY (NYC) Ontario, CA (ONT)
Wed, 21/8 - Wed, 11/9
American Airlines - Roundtrip, Economy
US$314
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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.
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Flight stats for ONT - did you know?

  • Ontario Intl Airport is the closest major airport to Ontario.
  • Ontario Intl Airport (Ontario, CA)
    • Right now, 16 airlines operate out of Ontario Intl Airport.
    • Ontario Intl Airport offers nonstop flights to 16 cities.
    • Every week, at least 521 domestic flights and 21 international flights depart from Ontario Intl Airport.
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