$83+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
Apr 16 — Apr 231
Round-trip
1 adult, Economy
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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 March 17, 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 March 17, 2026.
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Sun 4/193:27 pm
PHL
- ONT
1 stop11h 29m
Frontier
Deal found 3/12![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/2012:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Fri 5/18:41 pm
PHL
- ONT
1 stop30h 14m
Frontier
Deal found 3/13![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Tue 4/2112:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Sat 5/28:41 pm
PHL
- ONT
1 stop13h 45m
Frontier
Deal found 3/13![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Sat 5/96:00 pm
DCA
- ONT
1 stop8h 49m
Frontier
Deal found 3/12![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/2012:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Sun 5/38:36 pm
PHL
- ONT
1 stop13h 55m
Frontier
Deal found 3/13![Frontier logo]()
$207
This Vliegwinkel deal was found by Cheapflights users on 3/12. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Sat 5/96:00 pm
DCA
- ONT
1 stop8h 49m
Frontier
Deal found 3/12![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Tue 5/58:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 3/17![Frontier logo]()
$209
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:44 pm
ONT
- PHL
1 stop8h 06m
Frontier
Wed 4/298:00 am
PHL
- ONT
1 stop13h 49m
Frontier
Deal found 3/17![Frontier logo]()
$210
This Expedia deal was found by Cheapflights users on 3/16. 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.
Mon 4/2012:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Tue 4/281:59 pm
DCA
- ONT
1 stop12h 56m
Frontier
Deal found 3/16![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Fri 4/1712:59 am
ONT
- PHL
1 stop25h 36m
Frontier
Sat 4/258:41 pm
PHL
- ONT
1 stop13h 45m
Frontier
Deal found 3/14![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Fri 4/1712:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Mon 4/201:59 pm
DCA
- ONT
1 stop12h 56m
Frontier
Deal found 3/13![Frontier logo]()
$211
This Booking.com deal was found by Cheapflights users on 3/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Wed 4/298:00 am
PHL
- ONT
1 stop13h 49m
Frontier
Deal found 3/16![Frontier logo]()
$212
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 March 17, 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 March 17, 2026.
This Southwest deal was found by Cheapflights users on 3/15. 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.
Sat 4/251:20 pm
ONT
- LGA
1 stop7h 00m
Southwest
Wed 4/296:05 am
LGA
- ONT
1 stop10h 25m
Southwest
Deal found 3/15![Southwest logo]()
$281
This JetBlue deal was found by Cheapflights users on 3/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
ONT
- JFK
Nonstop5h 16m
JetBlue
Fri 5/295:30 pm
JFK
- ONT
Nonstop6h 15m
JetBlue
Deal found 3/14![JetBlue logo]()
$292
This Delta deal was found by Cheapflights users on 3/12. 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.
Fri 4/2412:49 pm
ONT
- LGA
1 stop7h 52m
Delta
Sat 5/24:00 pm
LGA
- ONT
1 stop8h 00m
Delta
Deal found 3/12![Delta logo]()
$299
This Alaska Airlines deal was found by Cheapflights users on 3/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:25 pm
ONT
- EWR
2 stops26h 04m
Alaska Airlines
Wed 4/297:29 am
EWR
- ONT
1 stop10h 03m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$366
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:30 pm
ONT
- MDT
2 stops12h 10m
United Airlines
Sat 6/65:50 pm
MDT
- ONT
1 stop7h 56m
United Airlines
Deal found 3/12![United Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 3/13. 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.
Fri 5/2210:00 pm
ONT
- MDT
1 stop8h 28m
American Airlines
Mon 5/255:43 pm
MDT
- ONT
1 stop7h 53m
American Airlines
Deal found 3/13![American Airlines logo]()
$469
This JetBlue deal was found by Cheapflights users on 3/15. 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.
Mon 5/1811:25 pm
ONT
- JFK
Nonstop5h 25m
JetBlue
Sat 5/235:30 pm
JFK
- ONT
Nonstop6h 15m
JetBlue
Deal found 3/15![JetBlue logo]()
$297
This Delta deal was found by Cheapflights users on 3/14. 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.
Tue 5/1210:00 pm
ONT
- LGA
1 stop9h 46m
Delta
Tue 5/191:55 pm
LGA
- ONT
2 stops12h 39m
Delta
Deal found 3/14![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 3/14. 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.
Sat 4/185:30 am
ONT
- PIT
1 stop7h 20m
Southwest
Sat 4/255:05 pm
PIT
- ONT
1 stop6h 40m
Southwest
Deal found 3/14![Southwest logo]()
$317
This Southwest deal was found by Cheapflights users on 3/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:40 pm
ONT
- PIT
1 stop7h 15m
Southwest
Sat 4/183:25 pm
PIT
- ONT
1 stop8h 55m
Southwest
Deal found 3/16![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 3/14. 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.
Fri 4/1712:49 pm
ONT
- LGA
1 stop7h 52m
Delta
Sat 4/2512:00 pm
LGA
- ONT
1 stop9h 33m
Delta
Deal found 3/14![Delta logo]()
$318
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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.
Fri 4/247:59 pm
ONT
- IAD
1 stop25h 10m
Alaska Airlines
Mon 4/277:10 am
IAD
- ONT
1 stop29h 35m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$375
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:05 am
ONT
- LGA
2 stops12h 49m
United Airlines
Wed 4/153:50 pm
LGA
- ONT
1 stop9h 00m
United Airlines
Deal found 3/12![United Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 3/15. 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.
Fri 4/241:29 pm
ONT
- JFK
1 stop7h 30m
Delta
Tue 4/286:20 am
JFK
- ONT
1 stop8h 16m
Delta
Deal found 3/15![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 3/15. 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.
Fri 4/1011:55 pm
ONT
- LGA
1 stop12h 40m
Southwest
Mon 4/136:00 am
LGA
- ONT
1 stop10h 15m
Southwest
Deal found 3/15![Southwest logo]()
$330
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/286:00 am
ONT
- PIT
1 stop9h 21m
Alaska Airlines
Wed 4/297:17 pm
PIT
- ONT
1 stop31h 42m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 3/17. 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.
Wed 4/2212:49 pm
ONT
- PHL
1 stop9h 10m
Delta
Tue 5/55:30 am
PHL
- ONT
1 stop9h 06m
Delta
Deal found 3/17![Delta logo]()
$337
This Southwest deal was found by Cheapflights users on 3/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:50 pm
ONT
- PIT
1 stop8h 15m
Southwest
Sat 4/184:00 pm
PIT
- ONT
2 stops8h 20m
Southwest
Deal found 3/16![Southwest logo]()
$341
This United Airlines deal was found by Cheapflights users on 3/15. 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 4/75:10 am
ONT
- LGA
1 stop9h 13m
United Airlines
Tue 4/145:15 pm
LGA
- ONT
1 stop8h 16m
United Airlines
Deal found 3/15![United Airlines logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:59 pm
ONT
- IAD
1 stop25h 10m
Alaska Airlines
Sun 5/107:10 am
IAD
- ONT
1 stop29h 35m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$402
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:00 am
ONT
- LGA
1 stop10h 06m
United Airlines
Mon 5/42:20 pm
LGA
- ONT
1 stop10h 38m
United Airlines
Deal found 3/12![United Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 3/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/159:45 pm
ONT
- DCA
2 stops8h 10m
Southwest
Wed 4/223:00 pm
DCA
- ONT
2 stops10h 25m
Southwest
Deal found 3/16![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 3/12. 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 6/27:05 am
ONT
- PIT
2 stops12h 53m
Delta
Tue 6/95:35 pm
PIT
- ONT
1 stop9h 09m
Delta
Deal found 3/12![Delta logo]()
$360
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
ONT
- PHL
1 stop21h 02m
Alaska Airlines
Sat 5/26:58 pm
PHL
- ONT
1 stop17h 47m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 3/14. 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.
Sat 4/186:00 am
ONT
- DCA
2 stops10h 55m
Southwest
Wed 4/293:55 pm
DCA
- ONT
2 stops9h 15m
Southwest
Deal found 3/14![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 am
ONT
- PIT
2 stops13h 20m
United Airlines
Tue 4/2810:49 am
PIT
- ONT
2 stops12h 47m
United Airlines
Deal found 3/12![United Airlines logo]()
$427
This Delta deal was found by Cheapflights users on 3/15. 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 4/1611:53 am
ONT
- IAD
1 stop9h 02m
Delta
Mon 4/206:00 am
IAD
- ONT
1 stop8h 36m
Delta
Deal found 3/15![Delta logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2810:39 am
ONT
- JFK
1 stop9h 20m
Alaska Airlines
Fri 5/84:29 pm
JFK
- ONT
1 stop10h 30m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:00 am
ONT
- AVP
1 stop7h 01m
United Airlines
Tue 5/55:41 pm
AVP
- ONT
1 stop7h 54m
United Airlines
Deal found 3/12![United Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 4/2710:39 am
ONT
- EWR
1 stop9h 50m
Alaska Airlines
Thu 4/307:29 am
EWR
- ONT
1 stop10h 03m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$427
Last-minute flights from Ontario to PennsylvaniaDiscover last-minute flight deals from Ontario to Pennsylvania. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pennsylvania. Data last updated March 17, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Sun 4/193:27 pm
PHL
- ONT
1 stop11h 29m
Frontier
Deal found 3/12![Frontier logo]()
$196
This Booking.com deal was found by Cheapflights users on 3/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Wed 4/298:00 am
PHL
- ONT
1 stop13h 49m
Frontier
Deal found 3/16![Frontier logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Fri 4/1712:59 am
ONT
- PHL
1 stop25h 36m
Frontier
Sat 4/258:41 pm
PHL
- ONT
1 stop13h 45m
Frontier
Deal found 3/14![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Fri 4/1712:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Mon 4/201:59 pm
DCA
- ONT
1 stop12h 56m
Frontier
Deal found 3/13![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Fri 4/1712:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Wed 4/228:00 am
DCA
- ONT
1 stop18h 55m
Frontier
Deal found 3/14![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/2012:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Fri 5/18:41 pm
PHL
- ONT
1 stop30h 14m
Frontier
Deal found 3/13![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 4/2012:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Sun 5/38:36 pm
PHL
- ONT
1 stop13h 55m
Frontier
Deal found 3/13![Frontier logo]()
$207
This Expedia deal was found by Cheapflights users on 3/16. 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.
Mon 4/2012:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Tue 4/281:59 pm
DCA
- ONT
1 stop12h 56m
Frontier
Deal found 3/16![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Tue 4/2112:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Sat 5/28:41 pm
PHL
- ONT
1 stop13h 45m
Frontier
Deal found 3/13![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Tue 5/58:35 pm
PHL
- ONT
1 stop16h 30m
Frontier
Deal found 3/17![Frontier logo]()
$209
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:44 pm
ONT
- PHL
1 stop8h 06m
Frontier
Wed 4/298:00 am
PHL
- ONT
1 stop13h 49m
Frontier
Deal found 3/17![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Sat 5/96:00 pm
DCA
- ONT
1 stop8h 49m
Frontier
Deal found 3/12![Frontier logo]()
$206
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 March 17, 2026.
Search for one-way flight options from Ontario to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Deal found 3/12![Frontier logo]()
$83
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- PHL
1 stop25h 35m
Frontier
Deal found 3/13![Frontier logo]()
$94
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.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
Deal found 3/13![Frontier logo]()
$98
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:59 am
ONT
- DCA
1 stop13h 00m
Frontier
Deal found 3/13![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 3/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/288:15 am
ONT
- LGA
1 stop10h 49m
Frontier
Deal found 3/16![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 3/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Deal found 3/17![Frontier logo]()
$105
This Trip.com deal was found by Cheapflights users on 3/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Deal found 3/12![Frontier logo]()
$108
This Super.com deal was found by Cheapflights users on 3/15. 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.
Mon 5/45:33 pm
ONT
- PHL
1 stop9h 01m
Frontier
Deal found 3/15![Frontier logo]()
$109
This CheapOair deal was found by Cheapflights users on 3/13. 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.
Tue 4/148:15 am
ONT
- LGA
1 stop10h 49m
Frontier
Deal found 3/13![Frontier logo]()
$110
This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:33 pm
ONT
- PHL
1 stop9h 01m
Frontier
Deal found 3/17![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 3/13. 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.
Fri 4/1712:59 am
ONT
- DCA
1 stop9h 01m
Frontier
Deal found 3/13![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 3/13. 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 4/166:15 am
ONT
- IAD
1 stop8h 57m
Frontier
Deal found 3/13![Frontier logo]()
$110
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 March 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $196 (Trip.com) |
One-way from | $83 (Trip.com) |
Popular in | December |
Cheapest in | July |
Average price | $515 |
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 March 17, 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
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Sat 4/25
1:20 pm-11:20 pm
1 stop7h 00m
New York LaGuardia
Wed 4/29
6:05 am-1:30 pm
1 stop10h 25m
$281
Quickest round-trip
OntarioNew York
ONT - JFK
ONTJFK
Ontario
Tue 5/26
10:00 pm-6:16 am
Nonstop5h 16m
New York John F Kennedy Intl
Fri 5/29
5:30 pm-8:45 pm
Nonstop6h 15m
$292
OntarioNew York
ONT - JFK
ONTJFK
Ontario
Mon 5/18
11:25 pm-7:50 am
Nonstop5h 25m
New York John F Kennedy Intl
Sat 5/23
5:30 pm-8:45 pm
Nonstop6h 15m
$297
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Fri 4/24
12:49 pm-11:41 pm
1 stop7h 52m
New York LaGuardia
Sat 5/2
4:00 pm-9:00 pm
1 stop8h 00m
$299
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Tue 5/12
10:00 pm-10:46 am
1 stop9h 46m
New York LaGuardia
Tue 5/19
1:55 pm-11:34 pm
2 stops12h 39m
$306
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Sat 4/18
5:30 am-3:50 pm
1 stop7h 20m
Pittsburgh
Sat 4/25
5:05 pm-8:45 pm
1 stop6h 40m
$317
OntarioPittsburgh
ONT - PIT
ONTPIT
Ontario
Tue 4/14
12:40 pm-10:55 pm
1 stop7h 15m
Pittsburgh
Sat 4/18
3:25 pm-9:20 pm
1 stop8h 55m
$317
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Fri 4/17
12:49 pm-11:41 pm
1 stop7h 52m
New York LaGuardia
Sat 4/25
12:00 pm-6:33 pm
1 stop9h 33m
$318
OntarioNew York
ONT - JFK
ONTJFK
Ontario
Fri 4/24
1:29 pm-11:59 pm
1 stop7h 30m
New York John F Kennedy Intl
Tue 4/28
6:20 am-11:36 am
1 stop8h 16m
$319
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Fri 4/10
11:55 pm-3:35 pm
1 stop12h 40m
New York LaGuardia
Mon 4/13
6:00 am-1:15 pm
1 stop10h 15m
$330
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-LGA
ONT-JFK
ONT-EWR
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-LGA
ONT-JFK
What is the cheapest month to book a flight from Ontario to Pennsylvania?
Currently, August is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $92). Flying from Ontario to Pennsylvania in March is currently the most expensive (average of $209). 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.
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 March 17, 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.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Comfort
8.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Food
7.0
Overall
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 March 17, 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 March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$157 | Average$260 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$285 | Average$435 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$296 | Average$451 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$306 | Average$441 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$445 | FlexibilityNo cancel fee | On-time69% |