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Latest Flight Deals from Ontario to Philadelphia

Book one-way or return flights from Ontario to Philadelphia from as little as NZD 83. Choose from the popular airlines below and book your flight today!

  • One way
  • Round-trip
      • ONT00:59
        11h 50m
        1 stop
        PHL15:49
        Tue, Apr 30|Ontario - Philadelphia|Frontier Airlines
        NZD 83NZD 175
        52% OFF
        52% OFF
        NZD 175NZD 83
      • ONT00:55
        25h 50m
        1 stop
        PHL05:45
        Sat, May 11|Ontario - Philadelphia|Frontier Airlines
        NZD 84NZD 175
        52% OFF
        52% OFF
        NZD 175NZD 84
      • ONT07:16
        19h 29m
        1 stop
        PHL05:45
        Tue, May 7|Ontario - Philadelphia|Frontier Airlines
        NZD 84NZD 175
        52% OFF
        52% OFF
        NZD 175NZD 84
      • ONT00:59
        11h 50m
        1 stop
        PHL15:49
        Tue, May 14|Ontario - Philadelphia|Frontier Airlines
        NZD 88
        NZD 88
      • ONT00:59
        25h 35m
        1 stop
        PHL05:34
        Sat, May 18|Ontario - Philadelphia|Frontier Airlines
        NZD 89
        NZD 89
      • ONT00:56
        25h 49m
        1 stop
        PHL05:45
        Fri, May 3|Ontario - Philadelphia|Frontier Airlines
        NZD 106
        NZD 106
      • ONT00:59
        8h 11m
        1 stop
        PHL12:10
        Tue, May 21|Ontario - Philadelphia|Frontier Airlines
        NZD 116
        NZD 116
      • ONT07:26
        29h 23m
        1 stop
        PHL15:49
        Mon, May 6|Ontario - Philadelphia|Frontier Airlines
        NZD 117
        NZD 117
      • ONT00:59
        8h 11m
        1 stop
        PHL12:10
        Wed, May 22|Ontario - Philadelphia|Frontier Airlines
        NZD 123
        NZD 123
      • ONT00:59
        8h 11m
        1 stop
        PHL12:10
        Mon, May 20|Ontario - Philadelphia|Frontier Airlines
        NZD 127
        NZD 127
      • ONT13:00
        3h 5m
        Direct
        PHL14:00
        Mon, May 6|Ontario - Philadelphia|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.

Searching for the best last minute flight from Ontario to Philadelphia? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Ontario to Philadelphia. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Airlines Flying from Ontario to Philadelphia

View airlines operating flights from Ontario to Philadelphia. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From NZD 83
Delta Air Lines
From NZD 205
Alaska Airlines
From NZD 233
United Airlines
From NZD 275
Southwest Airlines
From NZD 351
American Airlines
From NZD 368
ANA airlines

Find more flights and airlines

Alternative Routes from Ontario to Philadelphia

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Ontario to Philadelphia.

  • Cheapest
    Frontier Airlines
    ONT
    00:59
    11h 50m
    1 transfer
    PHL
    15:49
    Ontario International Airport - Philadelphia International Airport
    Tue, Apr 30Frontier Airlines
    NZD 83
  • Frontier Airlines
    ONT
    09:19
    19h 33m
    2 transfer
    TTN
    07:52
    Ontario International Airport - Trenton Mercer Airport
    Mon, May 13Frontier Airlines
    NZD 139
  • Frontier Airlines
    ONT
    09:19
    19h 33m
    2 transfer
    TTN
    07:52
    Ontario International Airport - Trenton Mercer Airport
    Mon, May 13Frontier Airlines
    NZD 139
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Ontario (ONT) to Philadelphia (PHL) the cheapest?

    Airlines adjust prices for flights from Ontario to Philadelphia based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Ontario (ONT) to Philadelphia (PHL) cost?

    According to Trip.com's data, the lowest price is around NZD 597.

How to find a cheap flight from Ontario to Philadelphia

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Ontario to Philadelphia. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com
Flight Information from Ontario to Philadelphia

Cheapest nonstop flight price

NZD 83

Cheapest round-trip ticket price

NZD 242

Off-season for travel

April

Peak season for travel

April

Flight distance

8,753.39km

Popular airline

Frontier Airlines

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