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San Francisco Ontario - Cheap flights

Special flight deals from San Francisco to Ontario

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Find the best time to book cheap flights to Ontario

Flexible on travel dates? Discover the cheapest month to fly to Ontario

  • Cheapest round-trip flight

    from 94 USD

  • Cheapest month to travel

    September

  • The cheapest day to fly

    Friday

  • Lowest prices

    3 months before
Sep
94 USD
Oct
102 USD
Nov
157 USD
Dec
187 USD
Jan
??
Feb
??
Mar
??
Apr
??
May
??
Jun
??
Jul
??
Aug
??

When is the best time to buy flight tickets?

Find out how far in advance it's worth booking round-trip flights.

  • 6 months before

    from

    195 USD

  • 3 months before

    from

    177 USD

  • 30 days before

    from

    210 USD

  • 7 days before

    from

    331 USD

  • 1 day before

    from

    429 USD

Discover the cheapest day to fly

Discover on which day of the week flights are usually the most affordable.
305 USD
Mon
245 USD
Tue
399 USD
Wed
227 USD
Thu
199 USD
Fri
333 USD
Sat
208 USD
Sun

General information

  • Local time (UTC-8)

  • Flight time from San Francisco

  • Local currency

    USD