Flights to Ontario, CA, United States

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Weather in Ontario

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C7°C
February18°C7°C
March20°C8°C
April23°C10°C
May25°C13°C
June29°C16°C
July33°C19°C
August33°C20°C
September32°C18°C
October27°C15°C
November22°C10°C
December17°C7°C
Hottest Month
33°C
August
Coldest month
7°C
February
Sunny days
339
days per year

14 day forecast

Thursday
30 May
28°C15°C
6 Jun
30°C19°C
Friday
31 May
28°C15°C
7 Jun
28°C17°C
Saturday
1 Jun
27°C15°C
8 Jun
27°C16°C
Sunday
2 Jun
26°C15°C
9 Jun
26°C16°C
Monday
3 Jun
26°C15°C
10 Jun
27°C16°C
Tuesday
4 Jun
30°C16°C
11 Jun
27°C16°C
Wednesday
5 Jun
31°C18°C
12 Jun
25°C15°C

Cheapest month to fly to Ontario

Explore price trends for trips to Ontario

Annual Avg. Price297 GBP
May 2024368 GBP
June 2024361 GBP
July 2024411 GBP
August 2024404 GBP
September 2024191 GBP
October 2024195 GBP
November 2024191 GBP
December 2024239 GBP
January 2025239 GBP
February 2025239 GBP
March 2025239 GBP
April 2025493 GBP

Frequently asked questions

Main airports in Ontario, California
Getting from the airport to Ontario, California
Best time of year to fly to Ontario, California
Things to do in Ontario, California
When to book your flight to Ontario, California
Ideal duration of stay in Ontario, California
Top tourist attractions in Ontario, California
Safety walking at night in Ontario, California
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