Cheap flights from Duluth, MN to Ontario, CA
Choose between United Airlines, Sun Country Airlines, or Frontier Airlines to find the best price
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Tips to know when travelling to Ontario
Cheapest nonstop round-trip | £368 |
---|---|
Most popular airline | United Airlines |
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Book your trip to arrive at Ontario International, Montclair (Ontario), or Ontario Bus Stop. The most popular airlines for this route are United Airlines, Sun Country Airlines, Frontier Airlines, Spirit Airlines, and American Airlines. Duluth and Ontario have 70 direct flights per week.
Check-in for a flight from Duluth to Ontario
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
United Airlines | UAL | UA | Yes | No |
Sun Country Airlines | SCX | SY | Yes | No |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
American Airlines | AAL | AA | No | No |
Weather in Ontario
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 18°C | 7°C |
February | 18°C | 7°C |
March | 20°C | 8°C |
April | 23°C | 10°C |
May | 25°C | 13°C |
June | 29°C | 16°C |
July | 33°C | 19°C |
August | 33°C | 20°C |
September | 32°C | 18°C |
October | 27°C | 15°C |
November | 22°C | 10°C |
December | 17°C | 7°C |
14 day forecast
Frequently asked questions
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