Flight Routes from United States to Ontario

Trip type

Our cheapest offers for flights from United States a Ontario (ONT)

Here you can compare cheap flights from United States to Ontario (ONT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Ontario. Prices and availability may change at any time.

  • San Francisco (SFO)Ontario (ONT)
    non-stop flights:
    4–9 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • United Airlines
    • Frontier Airlines
    from $151
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines3–73–83–73–73–73–63–7
    Frontier Airlines1111–2111–2
  • Dallas (DFW)Ontario (ONT)
    non-stop flights:
    6–8 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • American Airlines
    • Frontier Airlines
    from $209
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines5–75–75–65–65–75–75–7
    Frontier Airlines1111111
  • Baltimore (BWI)Ontario (ONT)
    non-stop flights:
    only flights with stopover
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • American Airlines
    • Frontier Airlines
    • Alaska Airlines
    • Sun Country Airlines
    • United Airlines
    from $312
Prices based on recent searches, subject to last-minute changes
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