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

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

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • ONT00:55
        25h 50m
        1 stop
        PHL05:45
        Ontario - Philadelphia|Sat, May 11|Frontier Airlines
        $50$107
        53% OFF
        53% OFF
        $107$50
      • ONT07:16
        19h 29m
        1 stop
        PHL05:45
        Ontario - Philadelphia|Tue, May 7|Frontier Airlines
        $50$107
        53% OFF
        53% OFF
        $107$50
      • ONT00:59
        11h 50m
        1 stop
        PHL15:49
        Ontario - Philadelphia|Tue, May 14|Frontier Airlines
        $52$107
        51% OFF
        51% OFF
        $107$52
      • ONT00:59
        25h 35m
        1 stop
        PHL05:34
        Ontario - Philadelphia|Sat, May 18|Frontier Airlines
        $53
        $53
      • ONT00:56
        25h 49m
        1 stop
        PHL05:45
        Ontario - Philadelphia|Fri, May 3|Frontier Airlines
        $63
        $63
      • ONT00:59
        21h 17m
        2 stops
        PHL01:16
        Ontario - Philadelphia|Wed, May 22|Frontier Airlines
        $65
        $65
      • ONT00:59
        8h 11m
        1 stop
        PHL12:10
        Ontario - Philadelphia|Tue, May 21|Frontier Airlines
        $69
        $69
      • ONT07:26
        29h 23m
        1 stop
        PHL15:49
        Ontario - Philadelphia|Mon, May 6|Frontier Airlines
        $70
        $70
      • ONT00:59
        17h 22m
        2 stops
        PHL21:21
        Ontario - Philadelphia|Wed, May 8|Frontier Airlines
        $74
        $74
      • ONT00:59
        8h 11m
        1 stop
        PHL12:10
        Ontario - Philadelphia|Mon, May 20|Frontier Airlines
        $76
        $76
      • ONT13:00
        3h 5m
        Direct
        PHL14:00
        Los Angeles - Philadelphia|Tue, May 7|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 Philadelphia International Airport

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

Frontier Airlines
From $50
Delta Air Lines
From $125
Alaska Airlines
From $139
United Airlines
From $164
Southwest Airlines
From $210
American Airlines
From $220
ANA airlines
Find more flights and airlines

Find Cheaper Flights from Los Angeles to Philadelphia

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

  • Cheapest
    Spirit Airlines
    LAX
    15:40
    11h 58m
    1 transfer
    PHL
    06:38
    Los Angeles International Airport - Philadelphia International Airport
    Wed, Jun 5Spirit Airlines
    $48
  • Spirit Airlines
    LAX
    17:34
    14h 59m
    1 transfer
    TTN
    11:33
    Los Angeles International Airport - Trenton Mercer Airport
    Wed, May 1Spirit Airlines
    $97
  • Spirit Airlines
    LAX
    17:34
    14h 59m
    1 transfer
    TTN
    11:33
    Los Angeles International Airport - Trenton Mercer Airport
    Wed, May 1Spirit Airlines
    $97
    Find More Flights

Ontario International Airport to Philadelphia International Airport Flights Info

Flight distance3,786.31km
Cheapest one-way ticket price$50
Cheapest return ticket price$111

FAQs for Ontario International Airport to Philadelphia International Airport Flights

  • What time does the earliest flight from Ontario International Airport to Philadelphia International Airport depart?

    The earliest flight departs from Ontario International Airport (ONT) at 09:05 and arrives in Philadelphia International Airport (PHL) at 22:45.

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

    Southwest Airlines is a very popular airline operating an average of 2 flights per month.

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