$60+ Cheap flights from Ontario (ONT) to Pennsylvania
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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
May 18 — May 251
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Pennsylvania 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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Cheapest flights from Ontario to PennsylvaniaExplore the most affordable flight options available from Ontario to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.
Explore the most affordable flight options available from Ontario to Pennsylvania. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/510:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Mon 5/118:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/14![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Mon 5/45:33 pm
ONT
- PHL
1 stop9h 01m
Frontier
Wed 5/68:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/13![Frontier logo]()
$133
This Expedia deal was found by Cheapflights users on 4/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:06 pm
ONT
- PHL
1 stop16h 10m
Frontier
Mon 5/118:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/16![Frontier logo]()
$160
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:39 pm
ONT
- IAD
1 stop12h 33m
Frontier
Tue 5/269:12 am
IAD
- ONT
1 stop9h 32m
Frontier
Deal found 4/14![Frontier logo]()
$160
This Booking.com deal was found by Cheapflights users on 4/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:06 pm
ONT
- PHL
1 stop19h 10m
Frontier
Sat 5/237:00 am
PHL
- ONT
1 stop27h 08m
Frontier
Deal found 4/13![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 4/14. 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 5/233:30 pm
ONT
- IAD
1 stop13h 42m
Frontier
Tue 5/269:12 am
IAD
- ONT
1 stop9h 32m
Frontier
Deal found 4/14![Frontier logo]()
$161
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Tue 5/128:35 pm
PHL
- ONT
1 stop30h 14m
Frontier
Deal found 4/14![Frontier logo]()
$162
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:50 am
ONT
- DCA
1 stop8h 08m
Frontier
Tue 5/266:00 pm
DCA
- ONT
1 stop8h 49m
Frontier
Deal found 4/14![Frontier logo]()
$163
This Booking.com deal was found by Cheapflights users on 4/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Wed 5/612:17 pm
PHL
- ONT
1 stop9h 54m
Frontier
Deal found 4/13![Frontier logo]()
$167
This Priceline deal was found by Cheapflights users on 4/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:30 pm
ONT
- PHL
1 stop11h 51m
Frontier
Tue 5/2610:40 am
PHL
- ONT
1 stop8h 04m
Frontier
Deal found 4/18![Frontier logo]()
$170
This CheapOair deal was found by Cheapflights users on 4/14. 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 5/510:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Wed 5/138:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/14![Frontier logo]()
$171
This CheapOair deal was found by Cheapflights users on 4/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:59 am
ONT
- DCA
1 stop9h 00m
Frontier
Thu 5/76:00 pm
DCA
- ONT
1 stop19h 05m
Frontier
Deal found 4/13![Frontier logo]()
$171
Best flights from Ontario to PennsylvaniaDiscover carefully curated flight deals from Ontario to Pennsylvania that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 18, 2026.
Discover carefully curated flight deals from Ontario to Pennsylvania that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 18, 2026.
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 10/85:05 pm
ONT
- PHL
1 stop9h 36m
Delta
Mon 10/126:40 pm
PHL
- ONT
1 stop8h 08m
Delta
Deal found 4/15![Delta logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:39 am
ONT
- IAD
1 stop10h 30m
Alaska Airlines
Tue 5/127:10 am
IAD
- ONT
1 stop10h 22m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$321
This JetBlue deal was found by Cheapflights users on 4/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:40 pm
ONT
- JFK
Nonstop5h 21m
JetBlue
Thu 5/285:30 pm
JFK
- ONT
Nonstop6h 17m
JetBlue
Deal found 4/18![JetBlue logo]()
$364
This Southwest deal was found by Cheapflights users on 4/17. 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.
Fri 10/29:20 pm
ONT
- PHL
2 stops15h 00m
Southwest
Wed 10/75:30 am
PHL
- ONT
2 stops9h 50m
Southwest
Deal found 4/17![Southwest logo]()
$365
This United Airlines deal was found by Cheapflights users on 4/17. 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 5/95:00 am
ONT
- PIT
2 stops8h 55m
United Airlines
Tue 5/124:02 pm
PIT
- ONT
1 stop9h 33m
United Airlines
Deal found 4/17![United Airlines logo]()
$392
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Fri 5/157:35 pm
ONT
- AVP
2 stops12h 43m
American Airlines
Fri 5/225:27 pm
AVP
- ONT
1 stop8h 09m
American Airlines
Deal found 4/14![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 10/125:05 pm
ONT
- PHL
1 stop9h 36m
Delta
Mon 11/26:40 pm
PHL
- ONT
1 stop8h 08m
Delta
Deal found 4/17![Delta logo]()
$263
This Delta deal was found by Cheapflights users on 4/14. 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.
Mon 6/110:00 pm
ONT
- LGA
2 stops11h 14m
Delta
Sat 6/66:00 am
LGA
- ONT
1 stop7h 57m
Delta
Deal found 4/14![Delta logo]()
$302
This Alaska Airlines deal was found by Cheapflights users on 4/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:39 am
ONT
- JFK
1 stop9h 20m
Alaska Airlines
Mon 5/47:00 am
JFK
- ONT
1 stop10h 32m
Alaska Airlines
Deal found 4/18![Alaska Airlines logo]()
$335
This JetBlue deal was found by Cheapflights users on 4/16. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2910:41 pm
ONT
- JFK
Nonstop5h 29m
JetBlue
Mon 6/15:30 pm
JFK
- ONT
Nonstop6h 17m
JetBlue
Deal found 4/16![JetBlue logo]()
$364
This Delta deal was found by Cheapflights users on 4/13. 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.
Mon 5/410:15 pm
ONT
- EWR
1 stop8h 14m
Delta
Fri 5/86:30 pm
EWR
- ONT
1 stop8h 04m
Delta
Deal found 4/13![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:39 am
ONT
- IAD
1 stop10h 30m
Alaska Airlines
Sat 5/97:10 am
IAD
- ONT
1 stop10h 22m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 4/15. 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 5/285:30 am
ONT
- PIT
1 stop7h 30m
Southwest
Mon 6/13:55 pm
PIT
- ONT
1 stop8h 20m
Southwest
Deal found 4/15![Southwest logo]()
$399
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Fri 5/81:40 pm
ONT
- IAD
1 stop6h 54m
United Airlines
Mon 5/113:15 pm
IAD
- ONT
1 stop10h 20m
United Airlines
Deal found 4/15![United Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 4/13. 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.
Tue 6/97:12 pm
ONT
- MDT
2 stops11h 16m
American Airlines
Sat 6/205:43 pm
MDT
- ONT
1 stop7h 53m
American Airlines
Deal found 4/13![American Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 4/16. 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.
Mon 6/14:57 pm
ONT
- EWR
1 stop10h 03m
Delta
Sat 6/66:00 am
EWR
- ONT
1 stop7h 57m
Delta
Deal found 4/16![Delta logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:39 am
ONT
- IAD
1 stop10h 30m
Alaska Airlines
Sat 5/306:00 am
IAD
- ONT
1 stop12h 09m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 4/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:30 am
ONT
- DCA
1 stop12h 20m
Southwest
Sat 5/237:00 am
DCA
- ONT
2 stops13h 10m
Southwest
Deal found 4/13![Southwest logo]()
$411
This Delta deal was found by Cheapflights users on 4/15. 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.
Wed 10/712:00 pm
ONT
- LGA
1 stop8h 41m
Delta
Wed 10/141:45 pm
LGA
- ONT
2 stops11h 29m
Delta
Deal found 4/15![Delta logo]()
$310
This United Airlines deal was found by Cheapflights users on 4/15. 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 4/286:05 am
ONT
- LGA
2 stops12h 49m
United Airlines
Fri 5/12:20 pm
LGA
- ONT
1 stop10h 38m
United Airlines
Deal found 4/15![United Airlines logo]()
$421
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:00 am
ONT
- EWR
1 stop8h 29m
Alaska Airlines
Thu 5/289:30 am
EWR
- ONT
1 stop12h 17m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$348
This JetBlue deal was found by Cheapflights users on 4/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/610:41 pm
ONT
- JFK
Nonstop5h 29m
JetBlue
Thu 6/117:30 pm
JFK
- ONT
Nonstop6h 08m
JetBlue
Deal found 4/17![JetBlue logo]()
$422
This JetBlue deal was found by Cheapflights users on 4/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2411:50 pm
ONT
- JFK
Nonstop5h 21m
JetBlue
Mon 7/277:30 pm
JFK
- ONT
Nonstop6h 05m
JetBlue
Deal found 4/15![JetBlue logo]()
$427
This United Airlines deal was found by Cheapflights users on 4/17. 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 8/187:13 pm
ONT
- IAD
1 stop8h 52m
United Airlines
Sat 8/2210:38 am
IAD
- ONT
1 stop10h 41m
United Airlines
Deal found 4/17![United Airlines logo]()
$431
This Delta deal was found by Cheapflights users on 4/18. 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 8/411:48 am
ONT
- DCA
1 stop9h 00m
Delta
Tue 8/117:40 am
DCA
- ONT
2 stops11h 34m
Delta
Deal found 4/18![Delta logo]()
$326
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:02 pm
ONT
- PHL
1 stop11h 38m
Alaska Airlines
Wed 9/97:00 am
PHL
- ONT
1 stop10h 15m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 4/14. 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.
Wed 6/1710:10 am
ONT
- PHL
2 stops9h 40m
Southwest
Mon 6/294:45 pm
PHL
- ONT
2 stops9h 45m
Southwest
Deal found 4/14![Southwest logo]()
$440
This American Airlines deal was found by Cheapflights users on 4/13. 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.
Sat 6/1312:41 pm
ONT
- MDT
1 stop7h 01m
American Airlines
Sat 6/202:30 pm
MDT
- ONT
2 stops11h 08m
American Airlines
Deal found 4/13![American Airlines logo]()
$512
This Delta deal was found by Cheapflights users on 4/16. 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 5/2610:00 pm
ONT
- DCA
1 stop8h 16m
Delta
Tue 6/25:28 pm
DCA
- ONT
2 stops9h 06m
Delta
Deal found 4/16![Delta logo]()
$326
This United Airlines deal was found by Cheapflights users on 4/15. 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 5/97:00 am
ONT
- AVP
1 stop7h 01m
United Airlines
Wed 5/133:10 pm
AVP
- ONT
1 stop10h 25m
United Airlines
Deal found 4/15![United Airlines logo]()
$435
Last-minute flights from Ontario to PennsylvaniaDiscover last-minute flight deals from Ontario to Pennsylvania. Data last updated April 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pennsylvania. Data last updated April 18, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:59 am
ONT
- DCA
1 stop9h 00m
Frontier
Thu 5/76:00 pm
DCA
- ONT
1 stop19h 05m
Frontier
Deal found 4/13![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 4/13. 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.
Mon 5/45:33 pm
ONT
- PHL
1 stop9h 01m
Frontier
Wed 5/68:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/13![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/14. 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 5/510:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Mon 5/118:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/14![Frontier logo]()
$128
This Booking.com deal was found by Cheapflights users on 4/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Wed 5/612:17 pm
PHL
- ONT
1 stop9h 54m
Frontier
Deal found 4/13![Frontier logo]()
$167
This CheapOair deal was found by Cheapflights users on 4/14. 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 5/510:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Wed 5/138:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 4/14![Frontier logo]()
$171
This Expedia deal was found by Cheapflights users on 4/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/78:06 pm
ONT
- PHL
1 stop16h 10m
Frontier
Wed 5/1312:17 pm
PHL
- ONT
1 stop9h 54m
Frontier
Deal found 4/15![Frontier logo]()
$160
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Tue 5/128:35 pm
PHL
- ONT
1 stop30h 14m
Frontier
Deal found 4/14![Frontier logo]()
$162
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:39 pm
ONT
- IAD
1 stop12h 33m
Frontier
Tue 5/269:12 am
IAD
- ONT
1 stop9h 32m
Frontier
Deal found 4/14![Frontier logo]()
$160
This Booking.com deal was found by Cheapflights users on 4/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:06 pm
ONT
- PHL
1 stop19h 10m
Frontier
Sat 5/237:00 am
PHL
- ONT
1 stop27h 08m
Frontier
Deal found 4/13![Frontier logo]()
$161
This Expedia deal was found by Cheapflights users on 4/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:50 am
ONT
- DCA
1 stop8h 08m
Frontier
Tue 5/266:00 pm
DCA
- ONT
1 stop8h 49m
Frontier
Deal found 4/14![Frontier logo]()
$163
This Frontier deal was found by Cheapflights users on 4/14. 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 5/233:30 pm
ONT
- IAD
1 stop13h 42m
Frontier
Tue 5/269:12 am
IAD
- ONT
1 stop9h 32m
Frontier
Deal found 4/14![Frontier logo]()
$161
This Priceline deal was found by Cheapflights users on 4/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:30 pm
ONT
- PHL
1 stop11h 51m
Frontier
Tue 5/2610:40 am
PHL
- ONT
1 stop8h 04m
Frontier
Deal found 4/18![Frontier logo]()
$170
One-way flights from Ontario to PennsylvaniaSearch for one-way flight options from Ontario to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated April 18, 2026.
Search for one-way flight options from Ontario to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated April 18, 2026.
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
ONT
- PHL
1 stop20h 37m
Frontier
Deal found 4/14![Frontier logo]()
$60
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:50 am
ONT
- PHL
1 stop15h 47m
Frontier
Deal found 4/15![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 5/96:00 am
ONT
- PHL
1 stop20h 37m
Frontier
Deal found 4/15![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 4/17. 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 5/1210:50 am
ONT
- DCA
1 stop8h 08m
Frontier
Deal found 4/17![Frontier logo]()
$79
This Frontier deal was found by Cheapflights users on 4/13. 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.
Sun 5/312:59 am
ONT
- DCA
1 stop9h 00m
Frontier
Deal found 4/13![Frontier logo]()
$80
This iWofly deal was found by Cheapflights users on 4/14. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:00 am
ONT
- DCA
1 stop27h 59m
Frontier
Deal found 4/14![Frontier logo]()
$84
This Super.com deal was found by Cheapflights users on 4/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:06 pm
ONT
- PHL
1 stop19h 10m
Frontier
Deal found 4/13![Frontier logo]()
$85
This Super.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/86:00 am
ONT
- DCA
1 stop27h 59m
Frontier
Deal found 4/14![Frontier logo]()
$85
This Flightnetwork deal was found by Cheapflights users on 4/14. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/233:30 pm
ONT
- IAD
1 stop13h 42m
Frontier
Deal found 4/14![Frontier logo]()
$85
This Frontier deal was found by Cheapflights users on 4/15. 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 5/264:39 pm
ONT
- PHL
1 stop10h 42m
Frontier
Deal found 4/15![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 4/14. 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.
Fri 5/15:33 pm
ONT
- PHL
1 stop9h 01m
Frontier
Deal found 4/14![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 4/15. 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.
Thu 4/3012:59 am
ONT
- DCA
1 stop9h 00m
Frontier
Deal found 4/15![Frontier logo]()
$99
Find flight deals from Ontario to Pennsylvania
Keep the following information in mind while searching for Ontario to Pennsylvania flight deals. Data was last updated April 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $128 (Kiwi.com) |
One-way from | $60 (Trip.com) |
Popular in | December |
Cheapest in | August |
Average price | $516 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Pennsylvania 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 April 18, 2026.
Use the filters below to find and compare flights from Ontario to Pennsylvania that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Thu 10/8
5:05 pm-5:41 am
1 stop9h 36m
Philadelphia
Mon 10/12
6:40 pm-11:48 pm
1 stop8h 08m
$263
OntarioPhiladelphia
ONT - PHL
ONTPHL
Ontario
Mon 10/12
5:05 pm-5:41 am
1 stop9h 36m
Philadelphia
Mon 11/2
6:40 pm-11:48 pm
1 stop8h 08m
$263
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Mon 6/1
10:00 pm-12:14 pm
2 stops11h 14m
New York LaGuardia
Sat 6/6
6:00 am-10:57 am
1 stop7h 57m
$302
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 5/4
10:15 pm-9:29 am
1 stop8h 14m
Newark
Fri 5/8
6:30 pm-11:34 pm
1 stop8h 04m
$307
OntarioNewark
ONT - EWR
ONTEWR
Ontario
Mon 6/1
4:57 pm-6:00 am
1 stop10h 03m
Newark
Sat 6/6
6:00 am-10:57 am
1 stop7h 57m
$307
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Wed 10/7
12:00 pm-11:41 pm
1 stop8h 41m
New York LaGuardia
Wed 10/14
1:45 pm-10:14 pm
2 stops11h 29m
$310
OntarioWashington, D.C.
ONT - IAD
ONTIAD
Ontario
Sat 5/9
10:39 am-12:09 am
1 stop10h 30m
Washington, D.C. Dulles Intl
Tue 5/12
7:10 am-2:32 pm
1 stop10h 22m
$321
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Tue 8/4
11:48 am-11:48 pm
1 stop9h 00m
Washington, D.C. Reagan-National
Tue 8/11
7:40 am-4:14 pm
2 stops11h 34m
$326
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Tue 5/26
10:00 pm-9:16 am
1 stop8h 16m
Washington, D.C. Reagan-National
Tue 6/2
5:28 pm-11:34 pm
2 stops9h 06m
$326
OntarioNew York
ONT - JFK
ONTJFK
Ontario
Wed 4/29
10:39 am-10:59 pm
1 stop9h 20m
New York John F Kennedy Intl
Mon 5/4
7:00 am-2:32 pm
1 stop10h 32m
$335
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Pennsylvania
Have a flexible travel schedule? Discover the best time to fly to Pennsylvania from Ontario with our price prediction graph.
ONT-PHL
ONT-DCA
ONT-IAD
ONT-JFK
ONT-PIT
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 Ontario to Pennsylvania
ONT-USPA
ONT-PHL
ONT-DCA
ONT-IAD
ONT-JFK
What is the cheapest month to book a flight from Ontario to Pennsylvania?
Currently, June is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $41). Flying from Ontario to Pennsylvania in March is currently the most expensive (average of $328). 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 Ontario to Pennsylvania?
Reviews of airlines servicing Pennsylvania
Get insights into the airlines that provide service to Pennsylvania. 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 Pennsylvania. Reviews last updated April 18, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Ontario to Pennsylvania. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Pennsylvania. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Pennsylvania
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Pennsylvania by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Pennsylvania by cabin class
Find flights from Ontario to Pennsylvania, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Pennsylvania flights
Browse other Ontario and Pennsylvania flight options. Last updated on April 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Pennsylvania flights
Consider these flights traveling from Ontario to Pennsylvania.
Top 5 airlines flying from Ontario to Pennsylvania
Discover the top 5 airlines that operate flights from Ontario to Pennsylvania. 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 April 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$157 | Average$279 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$285 | Average$435 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$456 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$300 | Average$440 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$461 | FlexibilityNo cancel fee | On-time69% |