$106+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — ONT
Nov 27 — Dec 41
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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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 Pennsylvania to Ontario
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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 October 28, 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 October 28, 2026.
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/512:45 pm -
2 stops12h 32m
Sat 12/126:00 am -
2 stops14h 26m
Deal found 10/28![Frontier logo]()
$203
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:40 am -
2 stops16h 37m
Wed 12/98:44 am -
2 stops11h 27m
Deal found 10/28![Frontier logo]()
$207
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/98:40 am -
2 stops30h 11m
Sat 12/128:44 am -
2 stops11h 27m
Deal found 10/24![Frontier logo]()
$214
This CheapOair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/208:38 pm -
1 stop30h 36m
Mon 11/236:45 am -
1 stop19h 40m
Deal found 10/27![Frontier logo]()
$217
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/74:31 pm -
2 stops21h 14m
Sat 12/128:44 am -
2 stops11h 27m
Deal found 10/25![Frontier logo]()
$218
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:25 am -
2 stops17h 55m
Thu 12/38:00 am -
2 stops12h 09m
Deal found 10/27![Frontier logo]()
$230
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/215:10 pm -
1 stop7h 30m
Thu 11/266:00 am -
1 stop7h 07m
Deal found 10/28![United Airlines logo]()
$320
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/55:35 pm -
1 stop7h 54m
Mon 12/711:08 pm -
1 stop7h 49m
Deal found 10/28![Delta logo]()
$325
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/45:35 pm -
1 stop9h 22m
Mon 12/711:08 pm -
1 stop7h 49m
Deal found 10/28![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/165:35 pm -
1 stop9h 22m
Fri 1/81:07 pm -
1 stop8h 39m
Deal found 10/28![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/115:00 pm -
1 stop7h 59m
Sat 1/91:42 pm -
1 stop6h 10m
Deal found 10/26![United Airlines logo]()
$374
This Gotogate deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:08 am -
1 stop10h 05m
Thu 11/196:00 am -
1 stop11h 42m
Deal found 10/28![Alaska Airlines logo]()
$378
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 October 28, 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 October 28, 2026.
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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.
Sun 12/65:00 am -
1 stop7h 55m
Wed 12/98:40 am -
2 stops9h 50m
Deal found 10/25![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/253:00 pm -
2 stops10h 48m
Wed 12/26:40 pm -
2 stops12h 02m
Deal found 10/27![United Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/195:28 pm -
1 stop9h 21m
Mon 11/2312:18 pm -
1 stop9h 28m
Deal found 10/24![Delta logo]()
$446
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/208:00 am -
1 stop10h 03m
Fri 12/256:00 am -
1 stop11h 30m
Deal found 10/24![Alaska Airlines logo]()
$533
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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.
Sun 11/86:11 am -
2 stops12h 24m
Thu 11/129:29 am -
2 stops11h 50m
Deal found 10/24![American Airlines logo]()
$716
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 1/162:02 pm -
1 stop7h 48m
Sat 1/237:00 am -
1 stop7h 09m
Deal found 10/23![United Airlines logo]()
$419
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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.
Sun 2/214:35 pm -
2 stops9h 55m
Sun 3/2111:55 pm -
1 stop7h 45m
Deal found 10/28![Southwest logo]()
$424
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/165:35 pm -
1 stop9h 22m
Sun 12/2010:35 pm -
1 stop8h 19m
Deal found 10/25![Delta logo]()
$471
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/154:55 pm -
1 stop6h 45m
Sun 12/2012:45 pm -
1 stop8h 35m
Deal found 10/25![Southwest logo]()
$431
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/255:10 pm -
1 stop7h 30m
Wed 12/25:45 am -
1 stop7h 01m
Deal found 10/27![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/89:20 am -
1 stop11h 16m
Wed 12/96:00 am -
2 stops10h 31m
Deal found 10/28![United Airlines logo]()
$456
This Southwest deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/185:40 am -
2 stops9h 10m
Sun 1/1011:30 am -
2 stops8h 40m
Deal found 10/28![Southwest logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/198:08 am -
1 stop10h 05m
Tue 12/16:00 am -
2 stops14h 42m
Deal found 10/24![Alaska Airlines logo]()
$573
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 3/276:00 am -
1 stop8h 27m
Sun 4/47:00 am -
1 stop7h 25m
Deal found 10/24![Delta logo]()
$560
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/243:00 pm -
2 stops10h 48m
Tue 12/14:17 pm -
2 stops14h 25m
Deal found 10/27![United Airlines logo]()
$484
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/1012:58 pm -
2 stops13h 01m
Mon 1/117:00 am -
1 stop10h 35m
Deal found 10/23![Alaska Airlines logo]()
$601
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/41:17 pm -
1 stop8h 27m
Sun 12/135:00 am -
1 stop7h 51m
Deal found 10/28![United Airlines logo]()
$505
This American Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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.
Sun 12/276:00 am -
1 stop20h 59m
Thu 12/316:00 am -
1 stop8h 22m
Deal found 10/26![American Airlines logo]()
$780
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/242:00 pm -
1 stop9h 35m
Fri 12/2511:14 am -
1 stop7h 18m
Deal found 10/26![Delta logo]()
$653
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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.
Sun 1/243:27 pm -
1 stop8h 33m
Thu 1/286:37 pm -
1 stop10h 08m
Deal found 10/26![United Airlines logo]()
$519
This Alaska Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/106:02 am -
2 stops15h 15m
Sat 11/146:00 am -
2 stops14h 44m
Deal found 10/26![Alaska Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/53:35 pm -
1 stop8h 36m
Sat 12/125:00 am -
2 stops9h 58m
Deal found 10/24![United Airlines logo]()
$523
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 1/239:55 am -
2 stops13h 06m
Sun 1/241:42 pm -
1 stop6h 55m
Deal found 10/28![United Airlines logo]()
$524
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/226:01 pm -
1 stop8h 39m
Tue 1/57:05 am -
1 stop7h 18m
Deal found 10/28![Delta logo]()
$828
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/239:55 am -
2 stops13h 06m
Tue 2/231:45 pm -
1 stop6h 58m
Deal found 10/25![United Airlines logo]()
$524
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 -
2 stops10h 11m
Tue 12/87:00 am -
1 stop8h 43m
Deal found 10/26![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/1410:21 am -
2 stops12h 54m
Tue 11/174:17 pm -
2 stops14h 27m
Deal found 10/24![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 12/29:45 am -
2 stops13h 53m
Sat 12/57:00 am -
1 stop7h 58m
Deal found 10/24![United Airlines logo]()
$558
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/86:20 am -
2 stops11h 58m
Sun 1/106:37 pm -
2 stops12h 22m
Deal found 10/25![United Airlines logo]()
$559
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/168:45 am -
2 stops9h 50m
Sun 12/2011:52 pm -
2 stops11h 30m
Deal found 10/25![United Airlines logo]()
$571
Last-minute flights from Pennsylvania to OntarioDiscover last-minute flight deals from Pennsylvania to Ontario. Data last updated October 28, 2026 and is based on user searches.
Discover last-minute flight deals from Pennsylvania to Ontario. Data last updated October 28, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:36 pm -
2 stops14h 15m
Thu 11/198:03 pm -
1 stop11h 13m
Deal found 10/24![Frontier logo]()
$274
This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/186:00 am -
1 stop13h 38m
Mon 11/2311:40 am -
1 stop14h 45m
Deal found 10/26![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
1 stop13h 38m
Thu 11/262:01 pm -
1 stop13h 00m
Deal found 10/28![Frontier logo]()
$262
This CheapOair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/186:00 am -
1 stop13h 38m
Sun 11/2210:40 pm -
1 stop28h 21m
Deal found 10/27![Frontier logo]()
$271
This CheapOair deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/208:38 pm -
1 stop30h 36m
Mon 11/236:45 am -
1 stop19h 40m
Deal found 10/27![Frontier logo]()
$217
This Cheapflightsfares deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/218:38 pm -
1 stop17h 07m
Mon 11/236:45 am -
1 stop19h 40m
Deal found 10/27![Frontier logo]()
$235
This Cheapflightsfares deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:55 pm -
1 stop24h 41m
Tue 11/244:13 pm -
1 stop10h 48m
Deal found 10/27![Frontier logo]()
$258
This Frontier deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/219:55 pm -
1 stop13h 35m
Thu 11/262:01 pm -
1 stop13h 00m
Deal found 10/28![Frontier logo]()
$275
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/215:10 pm -
1 stop7h 30m
Thu 11/266:00 am -
1 stop7h 07m
Deal found 10/28![United Airlines logo]()
$320
This Booking.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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.
Mon 11/238:38 pm -
1 stop30h 36m
Fri 11/276:45 am -
1 stop19h 40m
Deal found 10/27![Frontier logo]()
$248
This Mytrip deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/239:55 pm -
1 stop24h 41m
Tue 12/111:30 am -
2 stops28h 02m
Deal found 10/25![Frontier logo]()
$273
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/255:10 pm -
1 stop7h 30m
Wed 12/211:20 am -
2 stops9h 39m
Deal found 10/28![United Airlines logo]()
$326
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 October 28, 2026.
Search for one-way flight options from Pennsylvania to Ontario. Find affordable one-way fares based on user searches. Data last updated October 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 1/116:40 pm -
2 stops26h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$106
This Booking.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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.
Mon 12/76:31 pm -
2 stops19h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Frontier logo]()
$116
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:09 pm -
2 stops16h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/17:25 am -
2 stops30h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 1/156:37 pm -
2 stops26h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Frontier logo]()
$123
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/104:31 pm -
2 stops10h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$126
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:38 pm -
2 stops10h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$127
This Mytrip deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/24:38 pm -
2 stops21h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/238:38 pm -
1 stop30h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$129
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/158:40 am -
2 stops16h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$131
This Super.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/219:55 pm -
1 stop16h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/56:28 pm -
2 stops43h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$160
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 October 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $203 (Mytrip) |
One-way from | $101 (Super.com) |
Popular in | December |
Cheapest in | February |
Average price | $547 |
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 October 28, 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
Wed 11/18
7:15 am-12:17 pm
1 stop8h 02m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$161
Quickest round-trip
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sat 12/5
4:40 pm-9:00 pm
1 stop7h 20m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Thu 1/14
1:25 pm-6:10 pm
1 stop7h 45m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sun 12/13
6:59 pm-11:57 pm
1 stop7h 58m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$195
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Sun 2/21
4:35 pm-11:30 pm
2 stops9h 55m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$200
PhiladelphiaOntario
PHL Philadelphia - ONT Ontario
PHLONT
Philadelphia
Thu 12/17
2:30 pm-10:00 pm
2 stops10h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$209
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Mon 11/23
6:59 pm-11:39 am
2 stops19h 40m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$211
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Thu 2/25
8:00 am-2:47 pm
1 stop9h 47m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$215
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Fri 12/18
5:40 am-11:50 am
2 stops9h 10m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$220
PittsburghOntario
PIT Pittsburgh - ONT Ontario
PITONT
Pittsburgh
Sat 12/5
12:58 pm-10:01 am
3 stops24h 03m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$249
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.
PHL-ONT
PIT-ONT
AVP-ONT
MDT-ONT
ABE-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
PHL-ONT
PIT-ONT
AVP-ONT
MDT-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 $359). Flying from Pennsylvania to Ontario in October is currently the most expensive (average of $499). 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 Pennsylvania to Ontario?
Airfare is below average for this route at the moment.
Pennsylvania to Ontario flights typically cost between $357 and $556 in December.The cheapest round-trip price found within the last 5 days was $203 on Frontier (Dec 5-Dec 12).
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 53 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.
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
Ontario flight routes
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Popular flights
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Alternative routes for Pennsylvania to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
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 October 28, 2026.
Pennsylvania and Ontario flights
Browse other Pennsylvania and Ontario flight options. Last updated on October 28, 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 October 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$184 | Average$480 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$219 | Average$374 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$290 | Average$493 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$305 | Average$451 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$309 | Average$512 | FlexibilityNo cancel fee | On-time71% |