$226+ Cheap flights from Ontario to Portland, ME (PWM)
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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — PWM
Oct 20 — Oct 271
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Portland 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 Ontario to Portland
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Cheapest flights from Ontario to PortlandExplore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
Explore the most affordable flight options available from Ontario to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:20 pm -
1 stop29h 31m
Wed 11/116:31 pm -
1 stop24h 49m
Deal found 9/18![Multiple Airlines logo]()
$416
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:14 pm -
1 stop16h 20m
Sun 11/156:47 pm -
1 stop5h 00m
Deal found 9/14![American Airlines logo]()
$446
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:29 pm -
1 stop6h 30m
Tue 10/207:26 pm -
1 stop4h 19m
Deal found 9/15![American Airlines logo]()
$473
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:27 pm -
1 stop6h 18m
Sat 10/245:30 am -
1 stop4h 58m
Deal found 9/15![American Airlines logo]()
$476
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/312:44 pm -
1 stop9h 55m
Tue 11/106:17 am -
1 stop10h 17m
Deal found 9/19![American Airlines logo]()
$480
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am -
1 stop5h 57m
Wed 11/116:31 pm -
2 stops20h 49m
Deal found 9/18![Multiple Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:35 pm -
1 stop6h 16m
Sat 11/78:49 am -
1 stop4h 54m
Deal found 9/18![United Airlines logo]()
$486
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:35 am -
1 stop7h 03m
Sat 12/57:55 pm -
1 stop13h 19m
Deal found 9/17![United Airlines logo]()
$487
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:45 am -
1 stop9h 37m
Mon 10/56:00 am -
1 stop4h 40m
Deal found 9/15![Air Canada logo]()
$499
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:37 am -
2 stops12h 07m
Sat 11/710:04 am -
2 stops11h 22m
Deal found 9/16![American Airlines logo]()
$574
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:30 pm -
1 stop4h 29m
Wed 10/217:25 pm -
1 stop4h 29m
Deal found 9/15![United Airlines logo]()
$580
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:10 pm -
1 stop8h 18m
Wed 10/216:00 am -
2 stops9h 10m
Deal found 9/15![Air Canada logo]()
$588
Best flights from Ontario to PortlandDiscover carefully curated flight deals from Ontario to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
Discover carefully curated flight deals from Ontario to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 20, 2026.
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:29 pm -
1 stop6h 30m
Tue 10/207:26 pm -
1 stop4h 19m
Deal found 9/15![American Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/93:00 pm -
1 stop6h 48m
Wed 1/137:43 pm -
1 stop13h 46m
Deal found 9/18![United Airlines logo]()
$485
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:45 am -
1 stop9h 37m
Mon 10/56:00 am -
1 stop4h 40m
Deal found 9/15![Air Canada logo]()
$499
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 am -
1 stop4h 40m
Thu 11/125:18 pm -
1 stop6h 23m
Deal found 9/18![Delta logo]()
$523
This lastminute.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:45 am -
2 stops16h 33m
Wed 10/284:47 pm -
1 stop19h 10m
Deal found 9/18![WestJet logo]()
$753
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/312:44 pm -
1 stop9h 55m
Tue 11/106:17 am -
1 stop10h 17m
Deal found 9/19![American Airlines logo]()
$480
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/33:35 pm -
1 stop6h 16m
Sat 11/79:46 am -
1 stop4h 39m
Deal found 9/19![United Airlines logo]()
$486
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:05 am -
1 stop4h 54m
Fri 11/135:18 pm -
1 stop6h 23m
Deal found 9/18![Delta logo]()
$523
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:28 pm -
1 stop5h 42m
Thu 11/125:18 pm -
1 stop6h 23m
Deal found 9/18![Delta logo]()
$523
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop4h 28m
Fri 10/96:00 am -
1 stop5h 43m
Deal found 9/16![United Airlines logo]()
$542
This Air Canada deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:10 pm -
1 stop8h 18m
Wed 10/216:00 am -
2 stops9h 10m
Deal found 9/16![Air Canada logo]()
$661
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:05 pm -
2 stops7h 23m
Tue 10/205:15 am -
2 stops7h 52m
Deal found 9/15![United Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/192:28 pm -
1 stop8h 50m
Wed 10/286:28 am -
1 stop7h 09m
Deal found 9/18![Delta logo]()
$591
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:32 am -
1 stop30h 15m
Wed 10/1410:52 am -
2 stops23h 00m
Deal found 9/15![American Airlines logo]()
$683
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:30 pm -
1 stop4h 29m
Wed 10/217:25 pm -
1 stop4h 29m
Deal found 9/15![United Airlines logo]()
$580
This Air Canada deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:00 pm -
1 stop8h 21m
Tue 11/173:41 pm -
2 stops8h 44m
Deal found 9/17![Air Canada logo]()
$757
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:15 am -
1 stop15h 36m
Sun 11/88:47 am -
1 stop12h 29m
Deal found 9/17![United Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/23:10 pm -
1 stop8h 11m
Mon 11/98:29 am -
1 stop12h 47m
Deal found 9/18![United Airlines logo]()
$598
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:05 am -
2 stops13h 43m
Sat 11/78:45 am -
1 stop10h 12m
Deal found 9/16![United Airlines logo]()
$648
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:25 am -
1 stop15h 21m
Mon 10/125:15 am -
1 stop4h 41m
Deal found 9/15![United Airlines logo]()
$658
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/299:45 am -
1 stop4h 42m
Mon 11/23:41 pm -
2 stops23h 26m
Deal found 9/16![United Airlines logo]()
$660
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/162:13 pm -
1 stop9h 46m
Tue 11/178:49 am -
1 stop4h 39m
Deal found 9/16![United Airlines logo]()
$676
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/36:00 am -
1 stop8h 16m
Tue 11/108:49 am -
1 stop4h 39m
Deal found 9/19![United Airlines logo]()
$681
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:00 pm -
2 stops18h 16m
Mon 11/95:35 am -
1 stop6h 22m
Deal found 9/18![United Airlines logo]()
$721
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:00 am -
1 stop6h 26m
Tue 10/275:08 pm -
1 stop17h 09m
Deal found 9/18![United Airlines logo]()
$743
Last-minute flights from Ontario to PortlandDiscover last-minute flight deals from Ontario to Portland. Data last updated September 20, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Portland. Data last updated September 20, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:27 pm -
1 stop6h 18m
Sat 10/245:30 am -
1 stop4h 58m
Deal found 9/15![American Airlines logo]()
$476
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:00 pm -
1 stop13h 40m
Mon 10/56:00 am -
1 stop5h 49m
Deal found 9/16![United Airlines logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/29:50 am -
1 stop23h 18m
Sat 10/245:09 pm -
2 stops23h 06m
Deal found 9/15![Multiple Airlines logo]()
$578
This Air Canada deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:45 am -
1 stop9h 37m
Mon 10/56:00 am -
1 stop4h 40m
Deal found 9/15![Air Canada logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 pm -
1 stop4h 28m
Fri 10/96:00 am -
1 stop5h 43m
Deal found 9/16![United Airlines logo]()
$542
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:29 pm -
1 stop6h 30m
Tue 10/207:26 pm -
1 stop4h 19m
Deal found 9/15![American Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/134:05 pm -
2 stops7h 23m
Tue 10/206:00 am -
1 stop12h 10m
Deal found 9/15![United Airlines logo]()
$549
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:44 am -
1 stop4h 54m
Mon 10/196:00 am -
1 stop7h 47m
Deal found 9/16![United Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/227:55 am -
1 stop8h 52m
Tue 10/271:52 pm -
1 stop7h 25m
Deal found 9/19![Delta logo]()
$501
This American Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/225:29 pm -
1 stop6h 30m
Mon 10/264:27 pm -
1 stop6h 35m
Deal found 9/19![American Airlines logo]()
$525
This Justfly.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:00 am -
2 stops17h 18m
Sun 10/256:28 am -
1 stop26h 45m
Deal found 9/18![WestJet logo]()
$544
This American Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:37 am -
2 stops12h 07m
Sat 11/710:04 am -
2 stops11h 22m
Deal found 9/16![American Airlines logo]()
$574
One-way flights from Ontario to PortlandSearch for one-way flight options from Ontario to Portland. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
Search for one-way flight options from Ontario to Portland. Find affordable one-way fares based on user searches. Data last updated September 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/54:35 pm -
1 stop25h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$226
This United Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:43 pm -
1 stop4h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 11/36:45 am -
3 stops35h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:55 am -
1 stop5h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![American Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:32 am -
1 stop24h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![American Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/512:00 pm -
2 stops11h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$303
This FlightHub deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:00 am -
2 stops17h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![WestJet logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/63:20 pm -
1 stop18h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Multiple Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:01 pm -
1 stop5h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![United Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” 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 10/136:45 am -
3 stops35h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 am -
3 stops33h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$340
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:25 pm -
2 stops24h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![United Airlines logo]()
$344
Find flight deals from Ontario to Portland
Keep the following information in mind while searching for Ontario to Portland flight deals. Data was last updated September 20, 2026.
Round-trip from | $416 (Kiwi.com) |
|---|---|
One-way from | $226 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Portland 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 20, 2026.
Use the filters below to find and compare flights from Ontario to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Tue 1/5
7:00 am-5:51 pm
2 stops34h 51m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$239
Quickest round-trip
TorontoPortland
YYZ Toronto Pearson Intl - PWM Portland
YYZPWM
Toronto Pearson Intl
Sat 10/10
7:43 pm-11:59 pm
1 stop4h 16m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$273
MontrealPortland
YUL Montreal Pierre Elliott Trudeau Intl - PWM Portland
YULPWM
Montreal Pierre Elliott Trudeau Intl
Tue 11/3
6:45 am-5:51 pm
3 stops35h 06m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$280
TorontoPortland
YYZ Toronto Pearson Intl - PWM Portland
YYZPWM
Toronto Pearson Intl
Sun 10/11
10:55 am-4:29 pm
1 stop5h 34m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$292
TorontoPortland
YYZ Toronto Pearson Intl - PWM Portland
YYZPWM
Toronto Pearson Intl
Sat 12/5
12:00 pm-11:24 pm
2 stops11h 24m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$303
TorontoPortland
YYZ Toronto Pearson Intl - PWM Portland
YYZPWM
Toronto Pearson Intl
Sun 10/11
6:00 am-11:18 pm
2 stops17h 18m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$307
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Wed 1/6
3:20 pm-9:21 am
1 stop18h 01m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$324
OttawaPortland
YOW Ottawa - PWM Portland
YOWPWM
Ottawa
Sat 10/10
6:01 pm-11:28 pm
1 stop5h 27m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$328
MontrealPortland
YUL Montreal Pierre Elliott Trudeau Intl - PWM Portland
YULPWM
Montreal Pierre Elliott Trudeau Intl
Fri 10/30
6:45 am-4:24 pm
3 stops33h 39m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$340
MontrealPortland
YUL Montreal Pierre Elliott Trudeau Intl - PWM Portland
YULPWM
Montreal Pierre Elliott Trudeau Intl
Fri 10/30
1:25 pm-2:16 pm
2 stops24h 51m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$344
Showing 1-10 of 44 resultsSorted by cheapest first
Best time to book a flight from Ontario to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Ontario with our price prediction graph.
YOW-PWM
YYZ-PWM
YUL-PWM
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 Portland
CAON-PWM
YOW-PWM
YYZ-PWM
YUL-PWM
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Ontario to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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