Cheap flights from Sioux City, IA to Ontario, CA
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Most popular airline | United Airlines |
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Book your trip to arrive at Ontario International, or Montclair (Ontario). The most popular airline for this route is United Airlines. Sioux City and Ontario have 2 direct flights per week.
Check-in for a flight from Sioux City to Ontario
Name | Carrier code | IATA Code | Passport needed during booking | |
---|---|---|---|---|
United Airlines | UAL | UA | Yes |
Online check-in is not available for these airlines.
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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