$140+ Cheap flights from Portland (PDX) to Ontario
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — YYZ
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Cheapest flights from Portland to OntarioExplore the most affordable flight options available from Portland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
Explore the most affordable flight options available from Portland to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
This Trip.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Tue 7/289:00 am
YYZ
- PDX
1 stop7h 50m
WestJet
Deal found 6/9![WestJet logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:30 pm
PDX
- YYZ
2 stops11h 40m
WestJet
Wed 8/59:00 am
YYZ
- PDX
1 stop7h 50m
WestJet
Deal found 6/10![WestJet logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Wed 8/59:00 am
YYZ
- PDX
1 stop7h 50m
WestJet
Deal found 6/10![WestJet logo]()
$319
This Trip.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Wed 7/157:00 am
YYZ
- PDX
1 stop9h 50m
WestJet
Deal found 6/10![WestJet logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/42:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Tue 8/1110:25 pm
YYZ
- PDX
1 stop18h 25m
WestJet
Deal found 6/10![WestJet logo]()
$338
This Trip.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/92:30 pm
PDX
- YYZ
1 stop18h 25m
WestJet
Fri 8/146:10 am
YYZ
- PDX
2 stops10h 40m
WestJet
Deal found 6/10![WestJet logo]()
$340
This Gotogate deal was found by Cheapflights users on 6/6. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:30 pm
PDX
- YYZ
2 stops12h 16m
Air Canada
Sat 9/197:55 am
YYZ
- PDX
2 stops9h 56m
Air Canada
Deal found 6/6![Air Canada logo]()
$343
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:45 pm
PDX
- YYZ
2 stops9h 40m
Air Canada
Tue 7/2811:05 pm
YYZ
- PDX
2 stops13h 26m
Air Canada
Deal found 6/10![Air Canada logo]()
$344
This Flightnetwork deal was found by Cheapflights users on 6/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:10 am
PDX
- YYZ
2 stops9h 26m
Air Canada
Tue 7/2811:05 pm
YYZ
- PDX
2 stops13h 26m
Air Canada
Deal found 6/6![Air Canada logo]()
$346
This Justfly.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:30 pm
PDX
- YYZ
2 stops11h 40m
WestJet
Sun 9/2010:25 pm
YYZ
- PDX
1 stop18h 25m
WestJet
Deal found 6/10![WestJet logo]()
$352
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:27 pm
PDX
- YTZ
1 stop16h 39m
United Airlines
Tue 10/2712:15 pm
YTZ
- PDX
1 stop14h 47m
United Airlines
Deal found 6/8![United Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:40 pm
PDX
- YTZ
1 stop7h 26m
United Airlines
Tue 7/1412:15 pm
YTZ
- PDX
1 stop9h 32m
United Airlines
Deal found 6/9![United Airlines logo]()
$380
Best flights from Portland to OntarioDiscover carefully curated flight deals from Portland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
Discover carefully curated flight deals from Portland to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/232:27 pm
PDX
- YTZ
1 stop16h 39m
United Airlines
Tue 10/2712:15 pm
YTZ
- PDX
1 stop14h 47m
United Airlines
Deal found 6/8![United Airlines logo]()
$373
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am
PDX
- YYZ
1 stop7h 41m
Delta
Sat 11/145:50 pm
YYZ
- PDX
1 stop9h 01m
Delta
Deal found 6/10![Delta logo]()
$382
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:27 pm
PDX
- YYZ
1 stop6h 32m
Multiple Airlines
Sun 10/187:00 am
YYZ
- PDX
1 stop10h 51m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$391
This Air Canada deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:45 pm
PDX
- YOW
2 stops10h 39m
Air Canada
Sat 9/1210:00 am
YOW
- PDX
2 stops12h 06m
Air Canada
Deal found 6/9![Air Canada logo]()
$523
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:25 am
PDX
- YYZ
1 stop7h 37m
United Airlines
Mon 9/142:30 pm
YYZ
- PDX
1 stop8h 40m
United Airlines
Deal found 6/9![United Airlines logo]()
$382
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am
PDX
- YYZ
1 stop7h 45m
Delta
Mon 9/1412:25 pm
YYZ
- PDX
1 stop10h 51m
Delta
Deal found 6/8![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:35 pm
PDX
- YYZ
1 stop6h 38m
Delta
Sun 9/207:24 pm
YYZ
- PDX
1 stop6h 43m
Delta
Deal found 6/8![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/181:35 pm
PDX
- YYZ
1 stop6h 38m
Delta
Tue 9/226:15 am
YYZ
- PDX
1 stop7h 24m
Delta
Deal found 6/7![Delta logo]()
$387
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:43 pm
PDX
- YUL
1 stop13h 33m
Multiple Airlines
Wed 8/198:30 am
YUL
- PDX
2 stops13h 41m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:40 pm
PDX
- YTZ
1 stop7h 26m
United Airlines
Tue 7/2812:15 pm
YTZ
- PDX
1 stop9h 32m
United Airlines
Deal found 6/10![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:35 am
PDX
- YYZ
1 stop12h 24m
Delta
Fri 7/37:24 pm
YYZ
- PDX
1 stop6h 54m
Delta
Deal found 6/7![Delta logo]()
$387
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/253:30 pm
PDX
- YOW
1 stop11h 13m
Air Canada
Tue 9/299:00 am
YOW
- PDX
2 stops13h 06m
Air Canada
Deal found 6/10![Air Canada logo]()
$533
This United deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:33 pm
PDX
- YUL
1 stop11h 36m
Multiple Airlines
Fri 10/238:30 am
YUL
- PDX
2 stops13h 36m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:03 pm
PDX
- YUL
1 stop16h 13m
United Airlines
Mon 8/316:00 am
YUL
- PDX
1 stop19h 03m
United Airlines
Deal found 6/9![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:00 am
PDX
- YYZ
1 stop13h 18m
Delta
Tue 8/186:15 am
YYZ
- PDX
1 stop10h 23m
Delta
Deal found 6/5![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:11 am
PDX
- YTZ
1 stop6h 30m
United Airlines
Tue 11/2412:15 pm
YTZ
- PDX
1 stop8h 50m
United Airlines
Deal found 6/9![United Airlines logo]()
$459
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2010:40 pm
PDX
- YUL
1 stop9h 00m
Multiple Airlines
Thu 7/239:30 pm
YUL
- PDX
1 stop15h 01m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:15 am
PDX
- YYZ
1 stop9h 18m
Delta
Thu 7/302:24 pm
YYZ
- PDX
1 stop10h 24m
Delta
Deal found 6/9![Delta logo]()
$408
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:11 am
PDX
- YTZ
1 stop6h 30m
United Airlines
Mon 11/2312:15 pm
YTZ
- PDX
1 stop8h 50m
United Airlines
Deal found 6/9![United Airlines logo]()
$459
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:02 am
PDX
- YOW
1 stop11h 33m
Multiple Airlines
Sat 9/269:00 am
YOW
- PDX
2 stops13h 06m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$519
This Delta deal was found by Cheapflights users on 6/6. 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.
Thu 10/157:00 am
PDX
- YYZ
1 stop12h 51m
Delta
Sun 10/182:15 pm
YYZ
- PDX
1 stop10h 38m
Delta
Deal found 6/6![Delta logo]()
$416
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1011:40 pm
PDX
- YTZ
1 stop14h 02m
United Airlines
Mon 7/137:25 pm
YTZ
- PDX
1 stop17h 09m
United Airlines
Deal found 6/10![United Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/810:40 pm
PDX
- YTZ
1 stop8h 26m
United Airlines
Wed 7/1512:15 pm
YTZ
- PDX
1 stop9h 32m
United Airlines
Deal found 6/10![United Airlines logo]()
$466
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:15 pm
PDX
- YUL
2 stops13h 45m
United Airlines
Wed 9/26:00 am
YUL
- PDX
2 stops12h 05m
United Airlines
Deal found 6/9![United Airlines logo]()
$473
This Delta deal was found by Cheapflights users on 6/6. 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 11/1810:55 pm
PDX
- YUL
1 stop10h 20m
Delta
Sat 11/2112:45 pm
YUL
- PDX
1 stop12h 08m
Delta
Deal found 6/6![Delta logo]()
$475
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:55 pm
PDX
- YUL
1 stop10h 20m
Delta
Wed 12/1612:45 pm
YUL
- PDX
1 stop12h 08m
Delta
Deal found 6/8![Delta logo]()
$475
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2911:40 pm
PDX
- YTZ
1 stop7h 26m
United Airlines
Tue 7/712:15 pm
YTZ
- PDX
1 stop9h 32m
United Airlines
Deal found 6/7![United Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2111:40 pm
PDX
- YUL
1 stop8h 00m
United Airlines
Tue 7/283:25 pm
YUL
- PDX
1 stop9h 23m
United Airlines
Deal found 6/6![United Airlines logo]()
$497
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:40 pm
PDX
- YUL
1 stop8h 00m
United Airlines
Sat 7/186:00 am
YUL
- PDX
1 stop18h 46m
United Airlines
Deal found 6/7![United Airlines logo]()
$497
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:16 am
PDX
- YUL
1 stop18h 00m
United Airlines
Wed 7/159:45 am
YUL
- PDX
1 stop9h 12m
United Airlines
Deal found 6/7![United Airlines logo]()
$497
Last-minute flights from Portland to OntarioDiscover last-minute flight deals from Portland to Ontario. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Ontario. Data last updated June 11, 2026 and is based on user searches.
This Flysmarter deal was found by Cheapflights users on 6/6. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2911:40 pm
PDX
- YTZ
1 stop7h 26m
Air Canada
Tue 7/712:15 pm
YTZ
- PDX
1 stop9h 32m
Air Canada
Deal found 6/6![Air Canada logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:40 pm
PDX
- YTZ
1 stop7h 26m
United Airlines
Tue 7/1412:15 pm
YTZ
- PDX
1 stop9h 32m
United Airlines
Deal found 6/9![United Airlines logo]()
$380
This Trip.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Wed 7/157:00 am
YYZ
- PDX
1 stop9h 50m
WestJet
Deal found 6/10![WestJet logo]()
$329
This Mytrip deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:45 pm
PDX
- YYZ
2 stops9h 40m
Air Canada
Tue 7/2811:05 pm
YYZ
- PDX
2 stops13h 26m
Air Canada
Deal found 6/10![Air Canada logo]()
$344
This Gotogate deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:30 pm
PDX
- YUL
2 stops12h 40m
Air Canada
Tue 7/284:30 pm
YUL
- PDX
2 stops20h 01m
Air Canada
Deal found 6/7![Air Canada logo]()
$421
This Flighttix deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:30 pm
PDX
- YUL
2 stops12h 40m
Multiple Airlines
Tue 7/287:15 am
YUL
- PDX
1 stop9h 35m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Wed 8/59:00 am
YYZ
- PDX
1 stop7h 50m
WestJet
Deal found 6/10![WestJet logo]()
$319
This Flightnetwork deal was found by Cheapflights users on 6/6. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:10 am
PDX
- YYZ
2 stops9h 26m
Air Canada
Tue 7/2811:05 pm
YYZ
- PDX
2 stops13h 26m
Air Canada
Deal found 6/6![Air Canada logo]()
$346
This Trip.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Tue 7/289:00 am
YYZ
- PDX
1 stop7h 50m
WestJet
Deal found 6/9![WestJet logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/222:30 pm
PDX
- YYZ
2 stops11h 40m
WestJet
Wed 8/59:00 am
YYZ
- PDX
1 stop7h 50m
WestJet
Deal found 6/10![WestJet logo]()
$312
This Gotogate deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:45 pm
PDX
- YYZ
2 stops9h 40m
Air Canada
Wed 7/2911:05 pm
YYZ
- PDX
2 stops13h 26m
Air Canada
Deal found 6/7![Air Canada logo]()
$358
This Justfly.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Tue 8/48:00 pm
YYZ
- PDX
1 stop20h 50m
WestJet
Deal found 6/9![WestJet logo]()
$356
One-way flights from Portland to OntarioSearch for one-way flight options from Portland to Ontario. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
Search for one-way flight options from Portland to Ontario. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This Justfly.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Deal found 6/10![WestJet logo]()
$140
This Booking.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/302:30 pm
PDX
- YYZ
2 stops11h 40m
WestJet
Deal found 6/9![WestJet logo]()
$145
This Air Canada deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:00 am
PDX
- YYZ
1 stop7h 39m
Air Canada
Deal found 6/7![Air Canada logo]()
$146
This Justfly.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:30 pm
PDX
- YYZ
1 stop7h 35m
WestJet
Deal found 6/9![WestJet logo]()
$149
This Air Canada deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:00 am
PDX
- YYZ
1 stop9h 52m
Air Canada
Deal found 6/9![Air Canada logo]()
$158
This Air Canada deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:10 am
PDX
- YYZ
2 stops10h 36m
Air Canada
Deal found 6/10![Air Canada logo]()
$161
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/266:15 am
PDX
- YYZ
1 stop9h 18m
Delta
Deal found 6/10![Delta logo]()
$162
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:45 pm
PDX
- YYZ
1 stop6h 28m
Delta
Deal found 6/8![Delta logo]()
$164
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2710:40 pm
PDX
- YYZ
1 stop8h 14m
United Airlines
Deal found 6/9![United Airlines logo]()
$165
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:40 pm
PDX
- YTZ
1 stop8h 26m
United Airlines
Deal found 6/8![United Airlines logo]()
$165
This Air Canada deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/53:30 pm
PDX
- YYZ
2 stops11h 14m
Air Canada
Deal found 6/8![Air Canada logo]()
$166
This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:35 pm
PDX
- YYZ
1 stop8h 15m
American Airlines
Deal found 6/8![American Airlines logo]()
$167
Find flight deals from Portland to Ontario
Keep the following information in mind while searching for Portland to Ontario flight deals. Data was last updated June 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $304 (Trip.com) |
One-way from | $140 (Justfly.com) |
Popular in | December |
Cheapest in | August |
Average price | $422 |
Cheapflights Fare Finder
Customize your flight search to find flights from Portland 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 2,558,603 searches. Data last updated June 11, 2026.
Use the filters below to find and compare flights from Portland to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandToronto
PDX - YTZ
PDXYTZ
Portland
Fri 10/23
2:27 pm-10:06 am
1 stop16h 39m
Toronto Island
Tue 10/27
12:15 pm-12:02 am
1 stop14h 47m
$373
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Wed 11/11
6:00 am-4:41 pm
1 stop7h 41m
Toronto Pearson Intl
Sat 11/14
5:50 pm-11:51 pm
1 stop9h 01m
$382
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Wed 9/9
8:25 am-7:02 pm
1 stop7h 37m
Toronto Pearson Intl
Mon 9/14
2:30 pm-8:10 pm
1 stop8h 40m
$382
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Wed 9/9
6:00 am-4:45 pm
1 stop7h 45m
Toronto Pearson Intl
Mon 9/14
12:25 pm-8:16 pm
1 stop10h 51m
$387
Quickest round-trip
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Thu 9/17
1:35 pm-11:13 pm
1 stop6h 38m
Toronto Pearson Intl
Sun 9/20
7:24 pm-11:07 pm
1 stop6h 43m
$387
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Fri 9/18
1:35 pm-11:13 pm
1 stop6h 38m
Toronto Pearson Intl
Tue 9/22
6:15 am-10:39 am
1 stop7h 24m
$387
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Fri 6/26
6:35 am-9:59 pm
1 stop12h 24m
Toronto Pearson Intl
Fri 7/3
7:24 pm-11:18 pm
1 stop6h 54m
$387
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Fri 8/14
7:00 am-11:18 pm
1 stop13h 18m
Toronto Pearson Intl
Tue 8/18
6:15 am-1:38 pm
1 stop10h 23m
$387
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Thu 10/15
2:27 pm-11:59 pm
1 stop6h 32m
Toronto Pearson Intl
Sun 10/18
7:00 am-2:51 pm
1 stop10h 51m
$391
PortlandToronto
PDX - YYZ
PDXYYZ
Portland
Tue 7/21
6:15 am-6:33 pm
1 stop9h 18m
Toronto Pearson Intl
Thu 7/30
2:24 pm-9:48 pm
1 stop10h 24m
$408
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Portland to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Portland with our price prediction graph.
PDX-YYZ
PDX-YTZ
PDX-YUL
PDX-YOW
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 Portland to Ontario
PDX-CAON
PDX-YYZ
PDX-YTZ
PDX-YUL
PDX-YOW
What is the cheapest month to book a flight from Portland to Region of Ontario?
Currently, October is the cheapest month in which you can book a flight from Portland to Region of Ontario (average of $103). Flying from Portland to Region of Ontario in May is currently the most expensive (average of $153). 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 Portland to Region of Ontario?
How far ahead should I book a flight from Portland to Region of Ontario?
Booking 88 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to Region of Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated June 11, 2026.
See what other customers who have flown with Delta,United Airlines, andWestJet from Portland to Ontario have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Crew
8.5
Comfort
7.8
Entertainment
7.8
Food
7.2
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Portland 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 Portland 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 Portland to Ontario by cabin class
Find flights from Portland to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Portland and Ontario flights
Browse other Portland and Ontario flight options. Last updated on June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Portland to Ontario
Discover the top 6 airlines that operate flights from Portland 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 2,558,603 searches. Data last updated June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$113 | Average$281 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$142 | Average$582 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$144 | Average$428 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$321 | Average$597 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$343 | Average$500 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$344 | Average$584 | FlexibilityNo cancel fee | On-time75% |