Cheap flights from Green Bay, WI to Ontario, CA
Flights starting at $95. Choose between Frontier Airlines, Spirit Airlines, or United Airlines to find the best price.
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Tips to know when travelling to Ontario
Cheapest one-way trip | $95 |
---|---|
Cheapest round-trip | $220 |
Average round-trip | $273 |
Includes rare itinerary | |
Most popular airline | Frontier Airlines |
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Book your trip to arrive at Ontario International, or Montclair (Ontario). The most popular airlines for this route are Frontier Airlines, Spirit Airlines, United Airlines, Ravn Alaska, and JetBlue Airways. Green Bay and Ontario have 26 direct flights per week.
Check-in for a flight from Green Bay to Ontario
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
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 |
United Airlines | UAL | UA | Yes | No |
Ravn Alaska | 7H | Yes | Opens 24 days before flight Closes 2 hours before flight | |
JetBlue Airways | JBU | B6 | No | Opens 24 days before flight Closes 2 hours before flight |
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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