$115+ Cheap flights from Pennsylvania to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ONT
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Pennsylvania to Ontario with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Pennsylvania to OntarioExplore the most affordable flight options available from Pennsylvania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
Explore the most affordable flight options available from Pennsylvania to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 9, 2026.
This deal was found by Cheapflights users on 9/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 pm -
1 stop8h 51m
Sun 11/86:25 am -
1 stop7h 22m
Deal found 9/9![Frontier logo]()
$185
This Trip.com deal was found by Cheapflights users on 9/4. 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 10/712:40 pm -
2 stops14h 07m
Fri 10/168:35 pm -
1 stop7h 43m
Deal found 9/4![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:30 pm -
1 stop8h 09m
Mon 10/57:46 pm -
1 stop13h 49m
Deal found 9/6![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 pm -
1 stop8h 51m
Thu 11/511:52 am -
1 stop6h 58m
Deal found 9/6![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 9/8. 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 10/66:00 am -
1 stop13h 59m
Tue 10/135:25 pm -
1 stop9h 55m
Deal found 9/8![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 pm -
1 stop8h 51m
Sat 11/76:25 am -
1 stop7h 22m
Deal found 9/6![Frontier logo]()
$253
This Booking.com deal was found by Cheapflights users on 9/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm -
1 stop8h 47m
Tue 10/136:15 am -
1 stop26h 49m
Deal found 9/8![Frontier logo]()
$258
This Trip.com deal was found by Cheapflights users on 9/9. 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 10/66:00 pm -
1 stop8h 47m
Sat 10/1711:52 am -
1 stop7h 07m
Deal found 9/9![Frontier logo]()
$259
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:00 pm -
1 stop8h 47m
Tue 10/66:15 am -
1 stop7h 44m
Deal found 9/8![Frontier logo]()
$260
This FlightHub deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm -
1 stop8h 47m
Sat 10/106:15 am -
1 stop26h 49m
Deal found 9/6![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:00 pm -
1 stop19h 30m
Sat 10/106:15 am -
1 stop26h 49m
Deal found 9/5![Frontier logo]()
$262
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop7h 31m
Mon 10/268:35 pm -
1 stop6h 45m
Deal found 9/8![Frontier logo]()
$262
Best flights from Pennsylvania to OntarioDiscover carefully curated flight deals from Pennsylvania to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Pennsylvania to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Wed 1/67:00 am -
1 stop11h 20m
Mon 1/117:10 am -
1 stop9h 13m
Deal found 9/8![Alaska Airlines logo]()
$307
This Delta deal was found by Cheapflights users on 9/6. 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 11/176:00 am -
1 stop8h 08m
Mon 12/141:11 pm -
1 stop7h 54m
Deal found 9/6![Delta logo]()
$327
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 11/94:25 pm -
2 stops9h 15m
Mon 11/167:50 am -
2 stops11h 05m
Deal found 9/7![Southwest logo]()
$361
This JetBlue deal was found by Cheapflights users on 9/4. 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 10/25:59 pm -
Nonstop5h 58m
Sat 10/1011:05 pm -
Nonstop5h 18m
Deal found 9/4![JetBlue logo]()
$398
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:29 pm -
1 stop8h 22m
Wed 10/286:00 am -
2 stops12h 29m
Deal found 9/8![United Airlines logo]()
$418
This KAYAK deal was found by Cheapflights users on 9/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:59 am -
1 stop9h 31m
Mon 10/1211:59 pm -
1 stop8h 06m
Deal found 9/9![American Airlines logo]()
$461
This Trip.com deal was found by Cheapflights users on 9/4. 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 11/176:00 pm -
1 stop8h 51m
Fri 11/205:01 am -
1 stop8h 56m
Deal found 9/4![Frontier logo]()
$490
This Delta deal was found by Cheapflights users on 9/6. 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 11/186:00 am -
1 stop8h 08m
Tue 12/1511:57 am -
1 stop8h 59m
Deal found 9/6![Delta logo]()
$327
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/46:45 pm -
1 stop8h 13m
Fri 12/111:11 pm -
1 stop7h 54m
Deal found 9/8![Delta logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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 9/245:29 pm -
1 stop19h 22m
Sun 9/2710:47 am -
1 stop16h 14m
Deal found 9/5![Alaska Airlines logo]()
$362
This Southwest deal was found by Cheapflights users on 9/5. 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 11/135:15 pm -
1 stop7h 55m
Tue 11/176:50 am -
2 stops8h 10m
Deal found 9/5![Southwest logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 1/268:00 am -
1 stop10h 20m
Tue 2/97:00 am -
1 stop11h 59m
Deal found 9/6![Alaska Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 9/7. 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 11/175:00 am -
2 stops10h 10m
Tue 11/171:55 pm -
1 stop6h 30m
Deal found 9/7![Southwest logo]()
$374
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:59 pm -
1 stop10h 55m
Wed 10/2112:16 pm -
1 stop8h 24m
Deal found 9/8![Delta logo]()
$355
This United Airlines deal was found by Cheapflights users on 9/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:45 pm -
1 stop9h 14m
Tue 11/31:29 pm -
1 stop6h 46m
Deal found 9/7![United Airlines logo]()
$432
This Southwest deal was found by Cheapflights users on 9/7. 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.
Sat 10/35:25 am -
1 stop7h 55m
Sat 10/109:40 am -
2 stops10h 35m
Deal found 9/7![Southwest logo]()
$386
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 12/159:00 am -
1 stop11h 15m
Mon 1/46:11 pm -
1 stop8h 43m
Deal found 9/8![Alaska Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/4. 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 2/202:00 pm -
1 stop10h 21m
Sat 2/275:00 am -
1 stop7h 42m
Deal found 9/4![United Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 9/6. 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 1/255:00 pm -
1 stop9h 48m
Wed 2/107:00 am -
1 stop8h 14m
Deal found 9/6![Delta logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Sun 11/19:35 am -
1 stop10h 28m
Thu 11/54:09 pm -
1 stop10h 31m
Deal found 9/7![Alaska Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/25:21 pm -
1 stop8h 28m
Tue 10/66:00 am -
1 stop10h 19m
Deal found 9/4![United Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop8h 06m
Tue 10/271:35 pm -
1 stop7h 00m
Deal found 9/7![Delta logo]()
$371
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:30 pm -
1 stop10h 55m
Sat 10/312:45 pm -
1 stop7h 25m
Deal found 9/8![Southwest logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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 11/19:35 am -
1 stop10h 28m
Tue 11/104:09 pm -
1 stop10h 31m
Deal found 9/4![Alaska Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/5. 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 1/93:30 pm -
1 stop7h 50m
Sun 1/175:00 am -
1 stop9h 12m
Deal found 9/5![United Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 10/26:04 pm -
1 stop7h 20m
Sat 10/1012:16 pm -
1 stop7h 03m
Deal found 9/9![Delta logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 12/159:00 am -
1 stop11h 15m
Wed 1/64:16 pm -
1 stop11h 37m
Deal found 9/8![Alaska Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 9/7. 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.
Fri 10/163:00 pm -
2 stops9h 25m
Tue 10/2010:55 am -
2 stops8h 55m
Deal found 9/7![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/4. 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 12/52:00 pm -
1 stop10h 59m
Fri 12/111:40 pm -
1 stop6h 36m
Deal found 9/4![United Airlines logo]()
$437
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:35 pm -
1 stop8h 12m
Mon 10/511:54 am -
1 stop9h 27m
Deal found 9/7![Delta logo]()
$382
Last-minute flights from Pennsylvania to OntarioDiscover last-minute flight deals from Pennsylvania to Ontario. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Ontario. Data last updated September 9, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/8. 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.
Tue 9/296:00 pm -
1 stop8h 47m
Tue 10/66:15 am -
1 stop7h 44m
Deal found 9/8![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:30 pm -
1 stop8h 09m
Mon 10/57:46 pm -
1 stop13h 49m
Deal found 9/6![Frontier logo]()
$248
This CheapOair deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:00 pm -
1 stop19h 30m
Sat 10/106:15 am -
1 stop26h 49m
Deal found 9/5![Frontier logo]()
$262
This Booking.com deal was found by Cheapflights users on 9/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm -
1 stop8h 47m
Tue 10/136:15 am -
1 stop26h 49m
Deal found 9/8![Frontier logo]()
$258
This Trip.com deal was found by Cheapflights users on 9/9. 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 10/66:00 pm -
1 stop8h 47m
Sat 10/1711:52 am -
1 stop7h 07m
Deal found 9/9![Frontier logo]()
$259
This FlightHub deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:00 pm -
1 stop8h 47m
Sat 10/106:15 am -
1 stop26h 49m
Deal found 9/6![Frontier logo]()
$261
This Trip.com deal was found by Cheapflights users on 9/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:40 pm -
2 stops14h 07m
Wed 10/1411:52 am -
1 stop8h 58m
Deal found 9/8![Frontier logo]()
$263
This Frontier deal was found by Cheapflights users on 9/9. 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.
Thu 10/156:00 am -
1 stop8h 16m
Mon 10/198:35 pm -
1 stop6h 45m
Deal found 9/9![Frontier logo]()
$252
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop7h 31m
Mon 10/268:35 pm -
1 stop6h 45m
Deal found 9/8![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:00 pm -
1 stop8h 51m
Thu 11/511:52 am -
1 stop6h 58m
Deal found 9/6![Frontier logo]()
$252
This Trip.com deal was found by Cheapflights users on 9/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am -
1 stop19h 51m
Wed 11/411:52 am -
1 stop6h 58m
Deal found 9/8![Frontier logo]()
$265
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:00 pm -
1 stop8h 51m
Sat 11/76:25 am -
1 stop7h 22m
Deal found 9/6![Frontier logo]()
$253
One-way flights from Pennsylvania to OntarioSearch for one-way flight options from Pennsylvania to Ontario. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Pennsylvania to Ontario. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:36 pm -
2 stops24h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 9/6. 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 10/11:30 pm -
1 stop8h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 11/412:36 pm -
2 stops14h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$124
This Super.com deal was found by Cheapflights users on 9/9. 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.
Sat 10/175:50 am -
1 stop7h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$132
This Frontier deal was found by Cheapflights users on 9/5. 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 10/235:50 am -
1 stop7h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$135
This Flightnetwork deal was found by Cheapflights users on 9/7. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:50 am -
1 stop7h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$136
This Super.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/108:44 pm -
1 stop17h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$137
This Super.com deal was found by Cheapflights users on 9/4. 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.
Sun 10/118:59 pm -
1 stop13h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$139
This Frontier deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
1 stop13h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$143
This FlightHub deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:44 pm -
1 stop15h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/315:20 pm -
2 stops21h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$149
This American Airlines deal was found by Cheapflights users on 9/5. 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 1/285:55 pm -
1 stop8h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$154
Find flight deals from Pennsylvania to Ontario
Keep the following information in mind while searching for Pennsylvania to Ontario flight deals. Data was last updated September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $185 |
One-way from | $115 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $466 |
Cheapflights Fare Finder
Customize your flight search to find flights from Pennsylvania to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Pennsylvania to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sat 10/10
8:44 pm-11:16 am
1 stop17h 32m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$139
New YorkOntario
LGA New York LaGuardia - ONT Ontario
LGAONT
New York LaGuardia
Thu 10/29
3:39 pm-9:40 pm
1 stop9h 01m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$154
New YorkOntario
LGA New York LaGuardia - ONT Ontario
LGAONT
New York LaGuardia
Tue 9/22
6:00 am-11:05 am
1 stop8h 05m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$154
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Tue 11/10
7:00 am-3:13 pm
1 stop11h 13m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$154
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Wed 10/7
6:00 am-12:36 pm
1 stop9h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$154
New YorkOntario
LGA New York LaGuardia - ONT Ontario
LGAONT
New York LaGuardia
Wed 1/6
5:00 pm-10:14 pm
1 stop8h 14m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sun 11/8
6:00 am-12:36 pm
1 stop9h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Fri 11/20
6:48 pm-11:49 pm
1 stop8h 01m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
New YorkOntario
JFK New York John F Kennedy Intl - ONT Ontario
JFKONT
New York John F Kennedy Intl
Sat 10/3
3:10 pm-10:40 pm
1 stop10h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$164
Washington, D.C.Ontario
IAD Washington, D.C. Dulles Intl - ONT Ontario
IADONT
Washington, D.C. Dulles Intl
Tue 10/20
7:02 am-1:16 pm
1 stop9h 14m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$176
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Pennsylvania to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Pennsylvania with our price prediction graph.
JFK-ONT
DCA-ONT
LGA-ONT
PHL-ONT
EWR-ONT
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Pennsylvania to Ontario
USPA-ONT
JFK-ONT
DCA-ONT
LGA-ONT
PHL-ONT
What is the cheapest month to book a flight from Pennsylvania to Ontario?
Currently, September is the cheapest month in which you can book a flight from Pennsylvania to Ontario (average of $347). Flying from Pennsylvania to Ontario in June is currently the most expensive (average of $481). 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.
What is the cheapest time of day to fly from PA to ONT?
Find hourly flight availability from Pennsylvania to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 9, 2026.
When flying from Pennsylvania to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from Pennsylvania to Ontario?
Airfare is below average for this route at the moment.
Pennsylvania to Ontario flights typically cost between $322 and $383 in October.The cheapest round-trip price found within the last 5 days was $263 on Frontier (Oct 7-Oct 14).
How far ahead should I book a flight from Pennsylvania to Ontario?
To ensure you get the cheapest price possible for a flight from Pennsylvania to Ontario, 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.
Related info for your journey
Find useful and relevant information for your journey from Pennsylvania to Ontario. 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 Pennsylvania to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Pennsylvania to Ontario by cabin class
Find flights from Pennsylvania to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 9, 2026.
Pennsylvania and Ontario flights
Browse other Pennsylvania and Ontario flight options. Last updated on September 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Pennsylvania to Ontario flights
Consider these flights traveling from Pennsylvania to Ontario.
Top 5 airlines flying from Pennsylvania to Ontario
Discover the top 5 airlines that operate flights from Pennsylvania to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$184 | Average$474 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$215 | Average$374 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$290 | Average$493 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$305 | Average$468 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$314 | Average$500 | FlexibilityNo cancel fee | On-time71% |