Cheap flights from Ontario to San Francisco

Travel > North America > United States > Ontario to San Francisco flights

While wandering through Chinatown's streets and alleys, don't forget to look up. Above street level, many older structures have ornate balconies and cornices. The architecture on the 900 block of Grant Avenue and Waverly Place is particularly noteworthy, though some locals decry it and similar examples as inauthentic adornment meant to make their neighborhood seem "more Chinese."... (read more in our San Francisco Travel Guide)

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Check our newest flight offers to San Francisco:

  • $68Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Francisco, CA (SFO)09/13/202207:47 pm
    San Francisco, CA (SFO)Ontario, CA (ONT)09/19/202205:13 pm
    cheapoair.com check price
  • $75Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Francisco, CA (SFO)09/30/202207:47 pm
    San Francisco, CA (SFO)Ontario, CA (ONT)10/05/202205:31 pm
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  • $213Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Francisco, CA (SFO)09/30/202207:47 pm
    San Francisco, CA (SFO)Ontario, CA (ONT)10/05/202204:45 pm
    cheapoair.com check price
  • $251Frontier Airlines flight Frontier Airlines 
    FromToDepartureTime
    Ontario, CA (ONT)San Francisco, CA (SFO)08/26/202206:43 pm
    San Francisco, CA (SFO)Ontario, CA (ONT)09/07/202205:12 pm
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  • $717Multiple Airlines flight Multiple Airlines 
    FromToDepartureTime
    Toronto, ON (YYZ)San Francisco, CA (SFO)09/24/202206:30 am
    San Francisco, CA (SFO)Toronto, ON (YYZ)10/05/202208:40 am
    cheapoair.com check price
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