$84+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHL
Jul 12 — Jul 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Ontario to Pennsylvania
Cheapest
Best
Last-minute
One-way
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 June 12, 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 June 12, 2026.
This CheapOair deal was found by Cheapflights users on 6/8. 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.
Wed 8/1910:50 am
ONT
- DCA
1 stop27h 07m
Frontier
Sat 8/227:00 am
DCA
- ONT
1 stop30h 05m
Frontier
Deal found 6/8![Frontier logo]()
$252
This Southwest deal was found by Cheapflights users on 6/7. 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 9/2212:30 pm
ONT
- DCA
1 stop6h 50m
Southwest
Wed 9/305:40 pm
DCA
- ONT
1 stop7h 25m
Southwest
Deal found 6/7![Southwest logo]()
$255
This CheapOair deal was found by Cheapflights users on 6/8. 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.
Wed 8/2610:50 am
ONT
- DCA
1 stop27h 07m
Frontier
Sun 8/307:00 am
DCA
- ONT
1 stop30h 05m
Frontier
Deal found 6/8![Frontier logo]()
$257
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:47 pm
ONT
- PHL
1 stop12h 43m
Frontier
Fri 7/38:37 pm
PHL
- ONT
1 stop30h 12m
Frontier
Deal found 6/10![Frontier logo]()
$265
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 9/15:45 am
ONT
- DCA
2 stops9h 15m
Southwest
Wed 9/24:50 pm
DCA
- ONT
2 stops8h 10m
Southwest
Deal found 6/11![Southwest logo]()
$265
This Trip.com deal was found by Cheapflights users on 6/12. 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.
Thu 8/2010:50 am
ONT
- DCA
1 stop8h 09m
Frontier
Mon 8/247:00 am
DCA
- ONT
1 stop19h 49m
Frontier
Deal found 6/12![Frontier logo]()
$266
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 9/19:40 am
ONT
- PHL
2 stops9h 05m
Southwest
Thu 9/35:25 am
PHL
- ONT
1 stop7h 55m
Southwest
Deal found 6/11![Southwest logo]()
$268
This Trip.com deal was found by Cheapflights users on 6/12. 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 7/73:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Tue 7/149:50 am
IAD
- ONT
1 stop8h 24m
Frontier
Deal found 6/12![Frontier logo]()
$268
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:00 pm
ONT
- PHL
1 stop7h 56m
Delta
Sat 10/175:30 am
PHL
- ONT
1 stop8h 57m
Delta
Deal found 6/11![Delta logo]()
$269
This Trip.com deal was found by Cheapflights users on 6/12. 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.
Fri 7/33:34 pm
ONT
- IAD
1 stop13h 51m
Frontier
Fri 7/109:50 am
IAD
- ONT
1 stop9h 04m
Frontier
Deal found 6/12![Frontier logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Wed 9/97:00 am
ONT
- IAD
1 stop7h 37m
United Airlines
Wed 9/231:10 pm
IAD
- ONT
1 stop9h 47m
United Airlines
Deal found 6/9![United Airlines logo]()
$270
This Delta deal was found by Cheapflights users on 6/9. 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 9/2611:59 am
ONT
- PHL
1 stop7h 15m
Delta
Tue 9/296:20 am
PHL
- ONT
1 stop7h 27m
Delta
Deal found 6/9![Delta logo]()
$271
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 June 12, 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 June 12, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:05 am
ONT
- DCA
1 stop7h 23m
Delta
Sat 9/55:54 pm
DCA
- ONT
1 stop7h 29m
Delta
Deal found 6/11![Delta logo]()
$282
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 9/127:00 am
ONT
- IAD
1 stop7h 37m
United Airlines
Fri 10/24:15 pm
IAD
- ONT
1 stop9h 44m
United Airlines
Deal found 6/11![United Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:55 pm
ONT
- LGA
1 stop7h 25m
Southwest
Thu 8/66:10 am
LGA
- ONT
2 stops11h 55m
Southwest
Deal found 6/10![Southwest logo]()
$308
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:23 am
ONT
- JFK
1 stop9h 02m
Alaska Airlines
Mon 10/265:29 pm
JFK
- ONT
1 stop9h 24m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/7. 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 7/147:00 am
ONT
- AVP
2 stops14h 25m
American Airlines
Tue 7/285:27 pm
AVP
- ONT
2 stops9h 32m
American Airlines
Deal found 6/7![American Airlines logo]()
$375
This JetBlue deal was found by Cheapflights users on 6/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:18 pm
ONT
- JFK
Nonstop5h 21m
JetBlue
Tue 8/47:29 pm
JFK
- ONT
Nonstop6h 06m
JetBlue
Deal found 6/10![JetBlue logo]()
$383
This Delta deal was found by Cheapflights users on 6/10. 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.
Mon 10/1910:59 pm
ONT
- IAD
1 stop7h 12m
Delta
Sat 10/316:00 am
IAD
- ONT
1 stop8h 27m
Delta
Deal found 6/10![Delta logo]()
$282
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:00 pm
ONT
- IAD
1 stop9h 34m
Delta
Sun 8/307:00 am
IAD
- ONT
1 stop8h 16m
Delta
Deal found 6/11![Delta logo]()
$324
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Wed 9/99:01 am
ONT
- IAD
1 stop10h 18m
United Airlines
Wed 9/166:42 am
IAD
- ONT
1 stop8h 30m
United Airlines
Deal found 6/9![United Airlines logo]()
$367
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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.
Thu 10/226:54 pm
ONT
- EWR
1 stop9h 05m
Alaska Airlines
Mon 10/265:41 pm
EWR
- ONT
1 stop9h 12m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2310:00 pm
ONT
- DCA
1 stop8h 10m
Delta
Sat 9/55:54 pm
DCA
- ONT
1 stop7h 29m
Delta
Deal found 6/11![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 6/9. 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 8/267:45 am
ONT
- LGA
2 stops9h 30m
Southwest
Sun 8/306:55 am
LGA
- ONT
2 stops14h 20m
Southwest
Deal found 6/9![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 6/10. 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 8/259:15 am
ONT
- PHL
1 stop10h 16m
United Airlines
Mon 8/316:00 am
PHL
- ONT
1 stop9h 12m
United Airlines
Deal found 6/10![United Airlines logo]()
$368
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:12 pm
ONT
- EWR
1 stop15h 18m
Alaska Airlines
Tue 10/137:00 am
EWR
- ONT
1 stop14h 00m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$369
This KAYAK deal was found by Cheapflights users on 6/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:15 pm
ONT
- JFK
1 stop7h 32m
American Airlines
Thu 7/97:02 am
JFK
- ONT
1 stop8h 00m
American Airlines
Deal found 6/7![American Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/81:20 pm
ONT
- PIT
1 stop8h 25m
Southwest
Wed 7/1512:45 pm
PIT
- ONT
2 stops9h 15m
Southwest
Deal found 6/10![Southwest logo]()
$400
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/257:00 am
ONT
- PHL
1 stop7h 54m
United Airlines
Thu 9/106:00 am
PHL
- ONT
1 stop9h 12m
United Airlines
Deal found 6/9![United Airlines logo]()
$368
This JetBlue deal was found by Cheapflights users on 6/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:51 pm
ONT
- JFK
Nonstop5h 22m
JetBlue
Mon 7/277:30 pm
JFK
- ONT
Nonstop6h 06m
JetBlue
Deal found 6/11![JetBlue logo]()
$462
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 10/610:59 pm
ONT
- MDT
1 stop9h 37m
Delta
Tue 10/135:00 pm
MDT
- ONT
2 stops9h 48m
Delta
Deal found 6/10![Delta logo]()
$356
This Southwest deal was found by Cheapflights users on 6/11. 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.
Sat 9/125:40 am
ONT
- PIT
2 stops7h 40m
Southwest
Wed 9/166:30 am
PIT
- ONT
2 stops9h 00m
Southwest
Deal found 6/11![Southwest logo]()
$401
This Alaska Airlines deal was found by Cheapflights users on 6/7. 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 11/135:52 pm
ONT
- JFK
1 stop10h 33m
Alaska Airlines
Sun 11/155:29 pm
JFK
- ONT
1 stop9h 20m
Alaska Airlines
Deal found 6/7![Alaska Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:05 am
ONT
- LGA
1 stop7h 49m
Delta
Sun 9/66:00 am
LGA
- ONT
1 stop7h 42m
Delta
Deal found 6/11![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 6/11. 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 11/106:53 pm
ONT
- ABE
2 stops12h 13m
United Airlines
Sat 11/145:36 pm
ABE
- ONT
1 stop7h 50m
United Airlines
Deal found 6/11![United Airlines logo]()
$396
This JetBlue deal was found by Cheapflights users on 6/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:18 pm
ONT
- JFK
Nonstop5h 21m
JetBlue
Mon 7/277:30 pm
JFK
- ONT
Nonstop6h 06m
JetBlue
Deal found 6/11![JetBlue logo]()
$480
This Southwest deal was found by Cheapflights users on 6/11. 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.
Fri 8/1412:35 pm
ONT
- PIT
1 stop9h 05m
Southwest
Mon 8/174:10 pm
PIT
- ONT
2 stops9h 00m
Southwest
Deal found 6/11![Southwest logo]()
$408
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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.
Sun 9/2710:47 am
ONT
- EWR
1 stop9h 42m
Alaska Airlines
Tue 9/297:20 am
EWR
- ONT
1 stop9h 56m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:00 pm
ONT
- DCA
1 stop7h 44m
Delta
Sun 8/306:00 am
DCA
- ONT
1 stop7h 42m
Delta
Deal found 6/11![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 10/315:00 am
ONT
- LGA
2 stops10h 32m
United Airlines
Tue 11/34:15 pm
LGA
- ONT
1 stop9h 11m
United Airlines
Deal found 6/11![United Airlines logo]()
$407
This JetBlue deal was found by Cheapflights users on 6/7. 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.
Thu 9/179:10 pm
ONT
- JFK
Nonstop5h 21m
JetBlue
Mon 9/215:15 pm
JFK
- ONT
Nonstop5h 58m
JetBlue
Deal found 6/7![JetBlue logo]()
$497
This American Airlines deal was found by Cheapflights users on 6/8. 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 10/228:00 pm
ONT
- AVP
2 stops12h 08m
American Airlines
Tue 10/271:44 pm
AVP
- ONT
1 stop9h 20m
American Airlines
Deal found 6/8![American Airlines logo]()
$549
Last-minute flights from Ontario to PennsylvaniaDiscover last-minute flight deals from Ontario to Pennsylvania. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Pennsylvania. Data last updated June 12, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 6/7. 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 6/305:43 pm
ONT
- PHL
1 stop18h 24m
Frontier
Thu 7/912:44 pm
PHL
- ONT
1 stop14h 06m
Frontier
Deal found 6/7![Frontier logo]()
$271
This Trip.com deal was found by Cheapflights users on 6/7. 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 6/305:43 pm
ONT
- PHL
1 stop18h 24m
Frontier
Sat 7/1111:06 am
PHL
- ONT
1 stop23h 57m
Frontier
Deal found 6/7![Frontier logo]()
$284
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:47 pm
ONT
- PHL
1 stop12h 43m
Frontier
Fri 7/38:37 pm
PHL
- ONT
1 stop30h 12m
Frontier
Deal found 6/10![Frontier logo]()
$265
This Trip.com deal was found by Cheapflights users on 6/12. 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.
Fri 7/33:34 pm
ONT
- IAD
1 stop13h 51m
Frontier
Fri 7/109:50 am
IAD
- ONT
1 stop9h 04m
Frontier
Deal found 6/12![Frontier logo]()
$269
This Trip.com deal was found by Cheapflights users on 6/12. 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 7/73:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Tue 7/149:50 am
IAD
- ONT
1 stop8h 24m
Frontier
Deal found 6/12![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 6/8. 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 7/73:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Sat 7/119:30 am
IAD
- ONT
1 stop8h 44m
Frontier
Deal found 6/8![Frontier logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Wed 7/83:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Tue 7/149:50 am
IAD
- ONT
1 stop8h 24m
Frontier
Deal found 6/11![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Wed 7/158:17 am
ONT
- IAD
2 stops11h 38m
Frontier
Mon 7/209:50 am
IAD
- ONT
1 stop25h 13m
Frontier
Deal found 6/9![Frontier logo]()
$290
This Frontier deal was found by Cheapflights users on 6/9. 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 7/283:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Tue 8/49:38 pm
IAD
- ONT
1 stop14h 03m
Frontier
Deal found 6/9![Frontier logo]()
$295
This Expedia deal was found by Cheapflights users on 6/8. 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 7/293:40 pm
ONT
- IAD
1 stop13h 40m
Multiple Airlines
Wed 8/126:03 am
IAD
- ONT
1 stop10h 06m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$292
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/291:38 pm
ONT
- PHL
1 stop13h 22m
Frontier
Tue 8/411:06 am
PHL
- ONT
1 stop23h 57m
Frontier
Deal found 6/10![Frontier logo]()
$296
This Trip.com deal was found by Cheapflights users on 6/9. 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 7/306:00 am
ONT
- DCA
1 stop12h 59m
Frontier
Sat 8/81:59 pm
DCA
- ONT
1 stop12h 51m
Frontier
Deal found 6/9![Frontier logo]()
$265
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 June 12, 2026.
Search for one-way flight options from Ontario to Pennsylvania. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:38 pm
ONT
- IAD
1 stop15h 42m
Frontier
Deal found 6/10![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Tue 7/71:38 pm
ONT
- IAD
1 stop15h 42m
Frontier
Deal found 6/12![Frontier logo]()
$89
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:08 pm
ONT
- IAD
1 stop12h 12m
Frontier
Deal found 6/11![Frontier logo]()
$96
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/83:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Deal found 6/10![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:34 pm
ONT
- IAD
1 stop13h 51m
Frontier
Deal found 6/11![Frontier logo]()
$112
This Southwest deal was found by Cheapflights users on 6/9. 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 8/1111:55 pm
ONT
- DCA
1 stop8h 30m
Southwest
Deal found 6/9![Southwest logo]()
$113
This Trip.com deal was found by Cheapflights users on 6/9. 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 7/283:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Deal found 6/9![Frontier logo]()
$114
This Trip.com deal was found by Cheapflights users on 6/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:40 pm
ONT
- IAD
1 stop13h 40m
Frontier
Deal found 6/10![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 6/9. 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 8/78:17 am
ONT
- PHL
1 stop8h 12m
Frontier
Deal found 6/9![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 6/8. 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 7/106:00 am
ONT
- DCA
1 stop7h 59m
Frontier
Deal found 6/8![Frontier logo]()
$118
This Super.com deal was found by Cheapflights users on 6/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:17 am
ONT
- PHL
1 stop8h 12m
Frontier
Deal found 6/10![Frontier logo]()
$119
This Super.com deal was found by Cheapflights users on 6/11. 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.
Thu 8/206:00 am
ONT
- DCA
1 stop7h 57m
Frontier
Deal found 6/11![Frontier logo]()
$119
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 June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $252 (CheapOair) |
One-way from | $84 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $464 |
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 June 12, 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
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Fri 8/28
7:05 am-5:28 pm
1 stop7h 23m
Washington, D.C. Reagan-National
Sat 9/5
5:54 pm-10:23 pm
1 stop7h 29m
$282
OntarioWashington, D.C.
ONT - IAD
ONTIAD
Ontario
Sat 9/12
7:00 am-5:37 pm
1 stop7h 37m
Washington, D.C. Dulles Intl
Fri 10/2
4:15 pm-10:59 pm
1 stop9h 44m
$282
OntarioWashington, D.C.
ONT - IAD
ONTIAD
Ontario
Mon 10/19
10:59 pm-9:11 am
1 stop7h 12m
Washington, D.C. Dulles Intl
Sat 10/31
6:00 am-11:27 am
1 stop8h 27m
$282
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Mon 8/3
11:55 pm-10:20 am
1 stop7h 25m
New York LaGuardia
Thu 8/6
6:10 am-3:05 pm
2 stops11h 55m
$308
OntarioWashington, D.C.
ONT - IAD
ONTIAD
Ontario
Wed 8/26
12:00 pm-12:34 am
1 stop9h 34m
Washington, D.C. Dulles Intl
Sun 8/30
7:00 am-12:16 pm
1 stop8h 16m
$324
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Sun 8/23
10:00 pm-9:10 am
1 stop8h 10m
Washington, D.C. Reagan-National
Sat 9/5
5:54 pm-10:23 pm
1 stop7h 29m
$326
OntarioNew York
ONT - JFK
ONTJFK
Ontario
Fri 10/23
7:23 am-7:25 pm
1 stop9h 02m
New York John F Kennedy Intl
Mon 10/26
5:29 pm-11:53 pm
1 stop9h 24m
$329
OntarioHarrisburg
ONT - MDT
ONTMDT
Ontario
Tue 10/6
10:59 pm-11:36 am
1 stop9h 37m
Harrisburg
Tue 10/13
5:00 pm-11:48 pm
2 stops9h 48m
$356
OntarioNew York
ONT - LGA
ONTLGA
Ontario
Sat 8/29
7:05 am-5:54 pm
1 stop7h 49m
New York LaGuardia
Sun 9/6
6:00 am-10:42 am
1 stop7h 42m
$358
OntarioWashington, D.C.
ONT - DCA
ONTDCA
Ontario
Wed 8/26
12:00 pm-10:44 pm
1 stop7h 44m
Washington, D.C. Reagan-National
Sun 8/30
6:00 am-10:42 am
1 stop7h 42m
$358
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-IAD
ONT-DCA
ONT-PHL
ONT-LGA
ONT-JFK
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-IAD
ONT-DCA
ONT-PHL
ONT-LGA
What is the cheapest month to book a flight from Ontario to Pennsylvania?
Currently, November is the cheapest month in which you can book a flight from Ontario to Pennsylvania (average of $72). 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?
How far ahead should I book a flight from Ontario to Pennsylvania?
To ensure you get the cheapest price possible for a flight from Ontario to Pennsylvania, you should look to book at least 55 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 June 12, 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.
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 June 12, 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 June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$274 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$282 | Average$415 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$285 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$306 | Average$462 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$310 | Average$437 | FlexibilityNo cancel fee | On-time69% |