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°C12°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
340
days per year

14 day forecast

Thursday
6 Jun
30°C19°C
13 Jun
27°C15°C
Friday
7 Jun
30°C18°C
14 Jun
31°C17°C
Saturday
8 Jun
29°C17°C
15 Jun
29°C17°C
Sunday
9 Jun
28°C17°C
16 Jun
25°C16°C
Monday
10 Jun
28°C16°C
17 Jun
26°C16°C
Tuesday
11 Jun
27°C15°C
18 Jun
30°C15°C
Wednesday
12 Jun
26°C15°C
19 Jun
31°C17°C

Cheapest month to fly to Ontario

Explore price trends for trips to Ontario

Annual Avg. Price376 GBP
June 2024428 GBP
July 2024434 GBP
August 2024426 GBP
September 2024192 GBP
October 2024227 GBP
November 2024189 GBP
December 2024232 GBP
January 2025232 GBP
February 2025232 GBP
March 2025232 GBP
April 2025483 GBP
May 20251204 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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