Flights to Ontario

Our cheapest offers for flights to Ontario

Here you can compare cheap flights to Ontario (ONT) for either one-way or return trips. The following offers for Ontario were found on our flight search in the last days. Prices may vary depending on the flight route, date and availability.

  • San Francisco (SFO)Ontario (ONT)
    non-stop flights:
    8–14 per day
    flight duration:
    at least
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    • United Airlines
    • Frontier Airlines
    from $346
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines8–138–138–138–138–138–138–13
    Frontier Airlines1001101
  • Seattle-Tacoma (SEA)Ontario (ONT)
    non-stop flights:
    6–16 per day
    flight duration:
    at least
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    • Alaska Airlines
    • Delta Air Lines
    • Frontier Airlines
    from $63
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Alaska Airlines3–83–83–93–93–93–83–8
    Delta Air Lines3–73–73–63–63–63–73–7
    Frontier Airlines1101111
  • Dallas (DFW)Ontario (ONT)
    non-stop flights:
    6–9 per day
    flight duration:
    at least
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    • American Airlines
    • Frontier Airlines
    from $293
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines5–75–75–75–75–75–75–7
    Frontier Airlines1–21–211–21–211–2
  • Baltimore (BWI)Ontario (ONT)
    non-stop flights:
    only flights with stopover
    flight duration:
    at least
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    • United Airlines
    from $438
  • Sacramento (SMF)Ontario (ONT)
    non-stop flights:
    only flights with stopover
    flight duration:
    at least
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    • United Airlines
    • Alaska Airlines
    • American Airlines
    • Volaris
    from $285
Prices based on recent searches, subject to last-minute changes
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Most frequent connection from Ontario
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