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Ontario International Airport to San Francisco flight
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Cheap Flights from Ontario International Airport to San Francisco

Search for flights from Ontario International Airport to San Francisco and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
      • Cheapest nonstop
        ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Sun, Jul 27|Frontier Airlines
        $21$42
        50% OFF
        50% OFF
        $42$21

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Sun, Jul 27, arriving at San Francisco Intl. Airport. One-way Prices start from $21 including taxes and charges.

      • ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Sun, Aug 10|Frontier Airlines
        $21$42
        49% OFF
        49% OFF
        $42$21

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Sun, Aug 10, arriving at San Francisco Intl. Airport. One-way Prices start from $21 including taxes and charges.

      • ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Mon, Jul 28|Frontier Airlines
        $21$42
        49% OFF
        49% OFF
        $42$21

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Mon, Jul 28, arriving at San Francisco Intl. Airport. One-way Prices start from $21 including taxes and charges.

      • ONT9:41 PM
        1h 34m
        Nonstop
        SFO11:15 PM
        Ontario - San Francisco|Mon, Jun 23|Frontier Airlines
        $28
        $28

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Mon, Jun 23, arriving at San Francisco Intl. Airport. One-way Prices start from $28 including taxes and charges.

      • ONT9:41 PM
        1h 34m
        Nonstop
        SFO11:15 PM
        Ontario - San Francisco|Fri, Jun 27|Frontier Airlines
        $29
        $29

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Fri, Jun 27, arriving at San Francisco Intl. Airport. One-way Prices start from $29 including taxes and charges.

      • ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Mon, Jul 21|Frontier Airlines
        $29
        $29

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Mon, Jul 21, arriving at San Francisco Intl. Airport. One-way Prices start from $29 including taxes and charges.

      • ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Mon, Jul 7|Frontier Airlines
        $29
        $29

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Mon, Jul 7, arriving at San Francisco Intl. Airport. One-way Prices start from $29 including taxes and charges.

      • ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Fri, Jul 18|Frontier Airlines
        $29
        $29

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Fri, Jul 18, arriving at San Francisco Intl. Airport. One-way Prices start from $29 including taxes and charges.

      • ONT9:41 PM
        1h 33m
        Nonstop
        SFO11:14 PM
        Ontario - San Francisco|Mon, Jul 14|Frontier Airlines
        $29
        $29

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Mon, Jul 14, arriving at San Francisco Intl. Airport. One-way Prices start from $29 including taxes and charges.

      • ONT9:41 PM
        1h 34m
        Nonstop
        SFO11:15 PM
        Ontario - San Francisco|Mon, Jun 30|Frontier Airlines
        $29
        $29

        Choose Frontier Airlines flights from Ontario to San Francisco. The one-way direct flight with Frontier Airlines departs from Ontario International Airport on Mon, Jun 30, arriving at San Francisco Intl. Airport. One-way Prices start from $29 including taxes and charges.

      • ONT1:00 PM
        3h 5m
        Nonstop
        SFO2:00 PM
        Los Angeles - San Francisco|Sun, Jun 29|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Ontario International Airport to San Francisco

See which airlines fly from Ontario International Airport to San Francisco. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.
Alaska Airlines logoAlaska AirlinesFrontier Airlines logoFrontier AirlinesDelta Air Lines logoDelta Air LinesHawaiian Airlines logoHawaiian AirlinesUnited Airlines logoUnited AirlinesAmerican Airlines logoAmerican Airlines

Flight Info of Flights from Ontario International Airport to San Francisco

Cheapest round-trip ticket price$62
Cheapest one-way flight price$36
Off-season for travelMay
Peak season for travelMarch

FAQs for Ontario International Airport to San Francisco Flights

  • What is the transportation method from the main airport to downtown in San Francisco?

    • The distance from San Francisco International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.

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