$71+ Cheap flights from Philadelphia to Ontario (PHL - ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ONT
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Philadelphia to Ontario
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Best
Last-minute
One-way
Cheapest flights from Philadelphia to OntarioExplore the most affordable flight options available from Philadelphia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
Explore the most affordable flight options available from Philadelphia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2026.
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:50 am -
1 stop21h 00m
Tue 10/1311:52 am -
1 stop10h 24m
Deal found 8/13![Frontier logo]()
$157
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:50 am -
1 stop7h 39m
Mon 10/2611:52 am -
1 stop10h 24m
Deal found 8/13![Frontier logo]()
$158
This CheapOair deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:44 pm -
1 stop16h 59m
Sat 10/176:00 am -
1 stop20h 36m
Deal found 8/12![Frontier logo]()
$160
This CheapOair deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:44 pm -
1 stop16h 59m
Tue 10/2011:38 am -
1 stop14h 58m
Deal found 8/10![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
1 stop13h 46m
Thu 10/222:55 pm -
1 stop11h 41m
Deal found 8/11![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:50 am -
1 stop7h 39m
Thu 10/1511:52 am -
1 stop10h 24m
Deal found 8/13![Frontier logo]()
$182
This FlightHub deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:50 am -
1 stop7h 39m
Mon 10/1211:52 am -
1 stop10h 24m
Deal found 8/12![Frontier logo]()
$191
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:44 pm -
1 stop30h 11m
Mon 10/126:00 am -
1 stop20h 36m
Deal found 8/11![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:00 am -
1 stop11h 22m
Wed 9/23:40 pm -
1 stop11h 50m
Deal found 8/12![Frontier logo]()
$193
Best flights from Philadelphia to OntarioDiscover carefully curated flight deals from Philadelphia to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from Philadelphia to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/247:20 am -
1 stop8h 02m
Thu 10/297:07 am -
1 stop8h 11m
Deal found 8/10![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/293:05 pm -
2 stops8h 55m
Fri 10/22:50 pm -
1 stop7h 15m
Deal found 8/12![Southwest logo]()
$342
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
1 stop9h 12m
Sat 9/198:00 am -
1 stop8h 15m
Deal found 8/11![United Airlines logo]()
$362
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/56:00 am -
1 stop7h 42m
Sat 9/196:00 pm -
1 stop8h 50m
Deal found 8/10![Delta logo]()
$257
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:49 pm -
1 stop8h 06m
Mon 10/1211:15 pm -
1 stop8h 55m
Deal found 8/13![Delta logo]()
$281
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:20 am -
1 stop7h 54m
Fri 10/26:00 pm -
1 stop8h 50m
Deal found 8/12![Delta logo]()
$281
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/39:10 am -
1 stop9h 23m
Sat 11/76:00 am -
1 stop8h 15m
Deal found 8/11![United Airlines logo]()
$367
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:45 am -
2 stops13h 30m
Sat 10/311:29 pm -
1 stop7h 10m
Deal found 8/10![United Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:49 pm -
1 stop8h 06m
Sun 10/2511:15 pm -
1 stop7h 14m
Deal found 8/10![Delta logo]()
$337
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:20 am -
1 stop8h 01m
Sun 10/2511:15 pm -
1 stop7h 14m
Deal found 8/10![Delta logo]()
$369
Last-minute flights from Philadelphia to OntarioDiscover last-minute flight deals from Philadelphia to Ontario. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to Ontario. Data last updated August 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/318:00 am -
1 stop11h 22m
Wed 9/23:40 pm -
1 stop11h 50m
Deal found 8/12![Frontier logo]()
$193
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:37 pm -
1 stop16h 27m
Fri 9/410:17 pm -
1 stop29h 13m
Deal found 8/11![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:00 am -
1 stop10h 49m
Sat 9/53:40 pm -
1 stop11h 50m
Deal found 8/13![Frontier logo]()
$218
This American Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:00 am -
1 stop7h 34m
Sat 9/1212:37 pm -
1 stop8h 45m
Deal found 8/13![American Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:25 am -
1 stop7h 55m
Mon 9/1411:55 pm -
1 stop8h 40m
Deal found 8/11![Southwest logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am -
1 stop13h 46m
Wed 9/1611:45 am -
2 stops20h 04m
Deal found 8/13![Frontier logo]()
$220
This Kissandfly.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am -
1 stop13h 46m
Sat 9/1912:17 pm -
1 stop9h 23m
Deal found 8/11![Frontier logo]()
$236
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:04 am -
2 stops11h 57m
Sat 9/191:18 pm -
1 stop7h 26m
Deal found 8/13![United Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
1 stop13h 46m
Thu 10/222:55 pm -
1 stop11h 41m
Deal found 8/11![Frontier logo]()
$181
One-way flights from Philadelphia to OntarioSearch for one-way flight options from Philadelphia to Ontario. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from Philadelphia to Ontario. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:50 am -
1 stop7h 39m
Deal found 8/13![Frontier logo]()
$71
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:50 am -
1 stop7h 39m
Deal found 8/13![Frontier logo]()
$74
This Super.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am -
1 stop13h 46m
Deal found 8/12![Frontier logo]()
$76
This Mytrip deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:00 am -
1 stop10h 49m
Deal found 8/12![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/195:50 am -
1 stop7h 39m
Deal found 8/12![Frontier logo]()
$78
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:50 am -
1 stop7h 39m
Deal found 8/13![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:50 am -
1 stop7h 39m
Deal found 8/13![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
1 stop13h 46m
Deal found 8/11![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/82:00 pm -
1 stop12h 50m
Deal found 8/11![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:00 am -
1 stop13h 46m
Deal found 8/11![Frontier logo]()
$85
This CheapOair deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/128:44 pm -
1 stop16h 59m
Deal found 8/12![Frontier logo]()
$90
Find flight deals from Philadelphia to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $157 (FlightHub) |
One-way from | $71 (Frontier) |
Popular in | March |
Cheapest in | September |
Average price | $372 |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from Philadelphia to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sat 10/24
7:20 am-12:22 pm
1 stop8h 02m
Ontario
Thu 10/29
7:07 am-6:18 pm
1 stop8h 11m
$257
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sat 9/5
6:00 am-10:42 am
1 stop7h 42m
Ontario
Sat 9/19
6:00 pm-5:50 am
1 stop8h 50m
$257
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Fri 10/9
6:49 pm-11:55 pm
1 stop8h 06m
Ontario
Mon 10/12
11:15 pm-11:10 am
1 stop8h 55m
$281
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Tue 9/29
7:20 am-12:14 pm
1 stop7h 54m
Ontario
Fri 10/2
6:00 pm-5:50 am
1 stop8h 50m
$281
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Fri 10/23
6:49 pm-11:55 pm
1 stop8h 06m
Ontario
Sun 10/25
11:15 pm-9:29 am
1 stop7h 14m
$337
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Tue 9/29
3:05 pm-9:00 pm
2 stops8h 55m
Ontario
Fri 10/2
2:50 pm-1:05 am
1 stop7h 15m
$342
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Thu 9/17
6:00 am-12:12 pm
1 stop9h 12m
Ontario
Sat 9/19
8:00 am-7:15 pm
1 stop8h 15m
$362
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Tue 11/3
9:10 am-3:33 pm
1 stop9h 23m
Ontario
Sat 11/7
6:00 am-5:15 pm
1 stop8h 15m
$367
Quickest round-trip
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sun 10/25
7:20 am-12:21 pm
1 stop8h 01m
Ontario
Sun 10/25
11:15 pm-9:29 am
1 stop7h 14m
$369
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Tue 10/27
9:45 am-8:15 pm
2 stops13h 30m
Ontario
Sat 10/31
1:29 pm-11:39 pm
1 stop7h 10m
$372
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to Ontario
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to Ontario in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Philadelphia-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Philadelphia to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Philadelphia with our price prediction graph.
PHL-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to Ontario
How far ahead should I book a flight from Philadelphia to Ontario?
The best time to book flights from Philadelphia to Ontario is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Philadelphia to Ontario?
Currently, September is the cheapest month in which you can book a flight from Philadelphia to Ontario (average of $358). Flying from Philadelphia to Ontario in October is currently the most expensive (average of $536). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Philadelphia to Ontario?
Airfare is below average for this route at the moment.
Philadelphia to Ontario flights typically cost between $358 and $416 in October.The cheapest round-trip price found within the last 5 days was $157 on Frontier (Oct 10-Oct 13).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated August 15, 2026.
Read through reviews of airlines operating flights from Philadelphia to Ontario, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Philadelphia to Ontario by cabin class
Find flights from Philadelphia to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 15, 2026.
Philadelphia and Ontario flights
Browse other Philadelphia and Ontario flight options. Last updated on August 15, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on August 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Philadelphia to Ontario
Discover the top 5 airlines that operate flights from Philadelphia to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$215 | Average$373 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$256 | Average$370 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$290 | Average$486 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$305 | Average$462 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$323 | Average$495 | FlexibilityNo cancel fee | On-time63% |