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Philadelphia International Airport to Ontario International Airport flight
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Cheap Flights from Philadelphia International Airport to Ontario International Airport

Search for flights from Philadelphia to Los Angeles and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • PHL20:50
        12h 36m
        1 stop
        ONT06:26
        Philadelphia - Ontario|Mon, Apr 29|Frontier Airlines
        S$ 69S$ 151
        54% OFF
        54% OFF
        S$ 151S$ 69
      • PHL20:40
        12h 46m
        1 stop
        ONT06:26
        Philadelphia - Ontario|Wed, May 1|Frontier Airlines
        S$ 72S$ 151
        53% OFF
        53% OFF
        S$ 151S$ 72
      • PHL20:40
        12h 46m
        1 stop
        ONT06:26
        Philadelphia - Ontario|Tue, May 14|Frontier Airlines
        S$ 72S$ 151
        52% OFF
        52% OFF
        S$ 151S$ 72
      • PHL13:49
        13h 10m
        1 stop
        ONT23:59
        Philadelphia - Ontario|Thu, May 16|Frontier Airlines
        S$ 72
        S$ 72
      • PHL20:40
        12h 46m
        1 stop
        ONT06:26
        Philadelphia - Ontario|Tue, Apr 30|Frontier Airlines
        S$ 73
        S$ 73
      • PHL20:27
        14h 7m
        1 stop
        ONT07:34
        Philadelphia - Ontario|Fri, May 17|Frontier Airlines
        S$ 86
        S$ 86
      • PHL20:40
        12h 46m
        1 stop
        ONT06:26
        Philadelphia - Ontario|Tue, May 7|Frontier Airlines
        S$ 93
        S$ 93
      • PHL07:24
        10h 11m
        1 stop
        ONT14:35
        Philadelphia - Ontario|Sat, May 18|Frontier Airlines
        S$ 94
        S$ 94
      • PHL13:08
        26h 53m
        1 stop
        ONT13:01
        Philadelphia - Ontario|Mon, May 6|Frontier Airlines
        S$ 97
        S$ 97
      • PHL14:38
        25h 56m
        2 stops
        ONT13:34
        Philadelphia - Ontario|Tue, May 21|Frontier Airlines
        S$ 98
        S$ 98
      • PHL13:00
        3h 5m
        Direct
        ONT14:00
        Philadelphia - Los Angeles|Sun, May 5|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 Philadelphia International Airport to Ontario International Airport

See which airlines fly from Philadelphia to Los Angeles. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From S$ 69
Spirit Airlines
From S$ 106
American Airlines
From S$ 137
Delta Air Lines
From S$ 170
United Airlines
From S$ 179
Alaska Airlines
From S$ 181
Sun Country Airlines
From S$ 204
Southwest Airlines
From S$ 300
ANA airlines
Find more flights and airlines

Find Cheaper Flights from Philadelphia to Los Angeles

Explore other flights from Philadelphia to Los Angeles to find the best alternative options.

  • Cheapest
    Spirit Airlines
    PHL
    15:59
    8h 52m
    1 transfer
    LAX
    21:51
    Philadelphia International Airport - Los Angeles International Airport
    Wed, May 22Spirit Airlines
    S$ 73
  • Frontier Airlines
    TTN
    12:23
    10h 37m
    1 transfer
    LAX
    20:00
    Trenton Mercer Airport - Los Angeles International Airport
    Sat, May 11Frontier Airlines
    S$ 149
  • Frontier Airlines
    TTN
    12:23
    10h 37m
    1 transfer
    LAX
    20:00
    Trenton Mercer Airport - Los Angeles International Airport
    Sat, May 11Frontier Airlines
    S$ 149
    Find More Flights

Philadelphia International Airport to Ontario International Airport Flights Info

Flight distance3,786.31km
Cheapest one-way ticket priceS$ 69
Cheapest return ticket priceS$ 138

FAQs for Philadelphia International Airport to Ontario International Airport Flights

  • How long is a flight from Philadelphia International Airport (PHL) to Ontario International Airport (ONT)?

    It takes around 8 hours 50 minutes to fly from Philadelphia International Airport (PHL) to Ontario International Airport (ONT).

  • How many daily flights are there from Philadelphia International Airport (PHL) to Ontario International Airport (ONT)?

    There are around 1 daily flights from Philadelphia International Airport (PHL) to Ontario International Airport (ONT).

  • When to buy flight tickets from Philadelphia International Airport (PHL) to Ontario International Airport (ONT) the cheapest?

    Tickets cost around S$ 349 in October, making it the cheapest month to book. Philadelphia International Airport (PHL) to Ontario International Airport (ONT) is a popular route, so don't forget to book your tickets in advance.

  • When to buy flight tickets from Philadelphia International Airport (PHL) to Ontario International Airport (ONT) most expensive?

    The route from Philadelphia International Airport (PHL) to Ontario International Airport (ONT) is quite popular. Without considering departure times or holidays, tickets cost around S$ 349 in October, the most expensive month to book this route.

  • What is the transportation method from the main airport to downtown in Los Angeles?

    • The distance from Los Angeles International Airport to downtown is about 19km, by taxi about 30 minutes.
    • The distance from Ontario International Airport to downtown is about 59km, by taxi about 1 hour 10 minutes.

  • What's the closest airport to Ontario International Airport (ONT)?

    The closest airport to Ontario International Airport (ONT) is Chino Airport. The distance is around 9km.

  • Which airline operates the most direct flights from Philadelphia International Airport (PHL) to Ontario International Airport (ONT)?

    United Airlines is a very popular airline operating an average of 12 flights per month.

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