Flight Routes from Ontario to United States

Trip type

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

Here you can compare cheap flights from Ontario (ONT) to United States 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 United States. Prices and availability may change at any time.

  • Ontario (ONT)New York (NYC)
    non-stop flights:
    6 per week
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • JetBlue Airways
    from $446
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    JetBlue Airways1111110
  • Ontario (ONT)San Francisco (SFO)
    non-stop flights:
    2–7 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 $318
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines2–42–42–41–51–41–41–4
    Frontier Airlines1111–2111–2
  • Ontario (ONT)Las Vegas (LAS)
    non-stop flights:
    4–12 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    • Frontier Airlines
    from $258
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines5–7553–75–73–54–7
    Frontier Airlines1–51–41–51–31–41–32–4
  • Ontario (ONT)Phoenix - Sky Harbor (PHX)
    non-stop flights:
    6–11 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    • American Airlines
    from $420
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines4–54–54–53–54–53–54–5
    American Airlines3–52–52–53–53–53–54–6
  • Ontario (ONT)Honolulu (HNL)
    non-stop flights:
    1–2 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    from $491
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines111111–21
  • Ontario (ONT)Chicago O'Hare (ORD)
    non-stop flights:
    2–3 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
    • American Airlines
    from $424
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    United Airlines1–21–21–21–21–21–21–2
    American Airlines1111111
  • Ontario (ONT)Seattle-Tacoma (SEA)
    non-stop flights:
    3–5 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Alaska Airlines
    • Frontier Airlines
    • Delta Air Lines
    from $318
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Alaska Airlines1–21–221–21–21–21–2
    Frontier Airlines1–211–211–21–21
    Delta Air Lines1111111
  • Ontario (ONT)Santa Barbara (SBA)
    non-stop flights:
    only flights with stopover
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    from $738
  • Ontario (ONT)Dallas (DFW)
    non-stop flights:
    3–11 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 $370
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    American Airlines5–95–75–82–95–75–85–9
    Frontier Airlines1–21–21–21–21–21–21–2
  • Ontario (ONT)Portland-Oregon (PDX)
    non-stop flights:
    1–4 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Alaska Airlines
    • Frontier Airlines
    from $362
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Alaska Airlines1–21–31–31–21–21–31–2
    Frontier Airlines0100001
  • Ontario (ONT)Denver (DEN)
    non-stop flights:
    5–11 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    • Frontier Airlines
    • United Airlines
    from $407
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines3–53–43–43–53–52–63–5
    Frontier Airlines2–31–31–32–32–31–32–3
    United Airlines2222222
  • Ontario (ONT)Atlanta (ATL)
    non-stop flights:
    2–4 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Delta Air Lines
    from $499
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Delta Air Lines2–42–32–42–32–42–42–4
  • Ontario (ONT)New York (JFK)
    non-stop flights:
    6 per week
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • JetBlue Airways
    from $475
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    JetBlue Airways1111110
  • Ontario (ONT)Houston - George Bush (IAH)
    non-stop flights:
    2 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Frontier Airlines
    • United Airlines
    from $520
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Frontier Airlines1111111
    United Airlines1111111
  • Ontario (ONT)Salt Lake City (SLC)
    non-stop flights:
    1–3 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Delta Air Lines
    from $373
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Delta Air Lines2–32–32–32–31–31–22–3
  • Ontario (ONT)Oakland (OAK)
    non-stop flights:
    3–7 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    • Frontier Airlines
    from $530
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines4–5443–54–52–43–6
    Frontier Airlines0101011
  • Ontario (ONT)Sacramento (SMF)
    non-stop flights:
    3–8 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    • Frontier Airlines
    from $374
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines5–75–75–73–75–73–55–7
    Frontier Airlines1010100
  • Ontario (ONT)Chicago Midway (MDW)
    non-stop flights:
    1 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    from $715
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines1111111
  • Ontario (ONT)San Jose (SJC)
    non-stop flights:
    2–6 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    from $430
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines3–43–43–43–43–42–43–6
  • Ontario (ONT)Houston-Hobby (HOU)
    non-stop flights:
    1 per day
    flight duration:
    at least
    direct flight availability
    1. Sun
    2. Mon
    3. Tue
    4. Wed
    5. Thu
    6. Fri
    7. Sat
    airlines
    • Southwest Airlines
    from $1,072
    number of non-stop flights per airline and day of the week
    SunMonTueWedThuFriSat
    Southwest Airlines1111111
Prices based on recent searches, subject to last-minute changes
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