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

Wednesday
15 May
87%
24°C14°C
22 May
23°C14°C
Thursday
16 May
25°C14°C
23 May
21°C13°C
Friday
17 May
25°C15°C
24 May
22°C14°C
Saturday
18 May
25°C13°C
25 May
22°C13°C
Sunday
19 May
24°C12°C
26 May
24°C11°C
Monday
20 May
20°C12°C
27 May
25°C13°C
Tuesday
21 May
25°C12°C
28 May
28°C14°C

Cheapest month to fly to Ontario

Explore price trends for trips to Ontario

Annual Avg. Price284 GBP
May 2024286 GBP
June 2024286 GBP
July 2024376 GBP
August 2024423 GBP
September 2024185 GBP
October 2024185 GBP
November 2024185 GBP
December 2024238 GBP
January 2025238 GBP
February 2025234 GBP
March 2025234 GBP
April 2025537 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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