$81+ Cheap flights from Maine 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — YYZ
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Cheapest flights from Maine to OntarioExplore the most affordable flight options available from Maine to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from Maine to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 9/195:30 pm
BOS
- YTZ
Nonstop1h 47m
Porter Airlines
Tue 9/228:50 am
YTZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/13![Porter Airlines logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:10 am
BOS
- YTZ
Nonstop1h 47m
Porter Airlines
Sun 9/203:05 pm
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$202
This FlightHub deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:10 am
BOS
- YTZ
Nonstop1h 47m
Porter Airlines
Sun 9/273:05 pm
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 6/12![Porter Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:10 am
BOS
- YTZ
Nonstop1h 47m
Porter Airlines
Tue 9/221:35 pm
YTZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$208
This FlipMilhas deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlipMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/136:00 am
BOS
- YYZ
Nonstop1h 56m
GOL
Wed 9/168:10 am
YYZ
- BOS
Nonstop1h 45m
GOL
Deal found 6/11![GOL logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:10 am
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Mon 7/203:05 pm
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:05 am
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Sun 9/275:35 pm
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$210
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:10 am
BOS
- YTZ
Nonstop1h 49m
Multiple Airlines
Sun 8/27:15 am
YTZ
- BOS
Nonstop1h 37m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:10 am
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Mon 7/138:50 am
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$211
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.
Thu 7/98:25 pm
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Tue 7/141:15 pm
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:10 pm
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Sun 9/275:35 pm
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$213
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:35 am
BOS
- YTZ
Nonstop1h 59m
Air Canada
Sun 7/127:15 am
YTZ
- BOS
Nonstop1h 37m
Air Canada
Deal found 6/14![Air Canada logo]()
$213
Best flights from Maine to OntarioDiscover carefully curated flight deals from Maine to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Maine to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:35 pm
BOS
- YTZ
Nonstop1h 59m
Air Canada
Fri 7/177:15 am
YTZ
- BOS
Nonstop1h 37m
Air Canada
Deal found 6/12![Air Canada logo]()
$256
This Porter Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:35 pm
BOS
- YYZ
1 stop6h 29m
Porter Airlines
Tue 8/47:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$270
This United deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:25 am
BOS
- YUL
1 stop10h 20m
Multiple Airlines
Sun 7/58:20 am
YUL
- BOS
Nonstop1h 25m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$289
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 7/89:00 am
BOS
- YYZ
1 stop9h 09m
Delta
Fri 7/246:59 pm
YYZ
- BOS
1 stop4h 32m
Delta
Deal found 6/10![Delta logo]()
$290
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:19 am
BOS
- YYZ
1 stop8h 27m
United Airlines
Fri 7/175:15 pm
YYZ
- BOS
1 stop7h 59m
United Airlines
Deal found 6/11![United Airlines logo]()
$290
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/210:47 am
PWM
- YYZ
1 stop12h 13m
American Airlines
Wed 10/77:29 am
YYZ
- PWM
1 stop9h 18m
American Airlines
Deal found 6/10![American Airlines logo]()
$453
This KAYAK deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:50 am
BOS
- YYZ
Nonstop1h 55m
Air Canada
Fri 7/174:35 pm
YYZ
- BOS
Nonstop1h 47m
Air Canada
Deal found 6/12![Air Canada logo]()
$265
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/148:15 am
BOS
- YYZ
1 stop7h 31m
United Airlines
Tue 7/215:15 pm
YYZ
- BOS
1 stop7h 59m
United Airlines
Deal found 6/11![United Airlines logo]()
$290
This Porter Airlines deal was found by Cheapflights users on 6/14. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/223:35 pm
BOS
- YYZ
2 stops13h 59m
Porter Airlines
Sun 7/267:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/69:00 am
BOS
- YYZ
1 stop9h 09m
Delta
Thu 7/232:31 pm
YYZ
- BOS
1 stop9h 00m
Delta
Deal found 6/10![Delta logo]()
$295
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.
Fri 7/34:00 pm
BOS
- YYZ
1 stop7h 43m
Delta
Thu 7/232:31 pm
YYZ
- BOS
1 stop9h 00m
Delta
Deal found 6/10![Delta logo]()
$295
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/308:00 am
BOS
- YUL
1 stop8h 10m
United Airlines
Tue 7/711:23 am
YUL
- BOS
1 stop8h 05m
United Airlines
Deal found 6/12![United Airlines logo]()
$295
This Porter Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/83:55 pm
BOS
- YYZ
1 stop6h 09m
Porter Airlines
Wed 8/123:40 pm
YYZ
- BOS
1 stop5h 15m
Porter Airlines
Deal found 6/12![Porter Airlines logo]()
$307
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.
Tue 6/306:43 pm
BOS
- YTZ
1 stop15h 23m
Multiple Airlines
Sat 7/410:20 am
YTZ
- BOS
2 stops7h 47m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$371
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 7/83:35 pm
BOS
- YOW
Nonstop1h 28m
Porter Airlines
Fri 7/2410:40 am
YOW
- BOS
1 stop6h 04m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$310
This Porter Airlines deal was found by Cheapflights users on 6/14. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:45 pm
BOS
- YYZ
2 stops13h 00m
Porter Airlines
Tue 7/284:55 pm
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$313
This Porter Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:30 pm
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Fri 7/106:05 pm
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$315
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/101:25 pm
PWM
- YYZ
1 stop9h 48m
American Airlines
Tue 7/147:25 pm
YYZ
- PWM
1 stop17h 10m
American Airlines
Deal found 6/11![American Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:45 am
BOS
- YOW
1 stop4h 18m
United Airlines
Wed 8/56:05 am
YOW
- BOS
1 stop5h 11m
United Airlines
Deal found 6/14![United Airlines logo]()
$399
This Porter 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/255:30 pm
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Sat 8/11:35 pm
YTZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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 8/2810:00 am
BOS
- YUL
1 stop8h 54m
Delta
Tue 9/16:00 am
YUL
- BOS
2 stops11h 34m
Delta
Deal found 6/13![Delta logo]()
$432
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:44 pm
BOS
- YOW
1 stop4h 21m
United Airlines
Sat 8/153:10 pm
YOW
- BOS
1 stop4h 18m
United Airlines
Deal found 6/11![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:15 am
BOS
- YUL
1 stop6h 13m
United Airlines
Sun 7/58:20 am
YUL
- BOS
Nonstop1h 25m
United Airlines
Deal found 6/14![United Airlines logo]()
$400
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:00 am
BOS
- YUL
2 stops12h 22m
Delta
Sat 10/109:28 am
YUL
- BOS
1 stop8h 56m
Delta
Deal found 6/10![Delta logo]()
$447
This Porter Airlines deal was found by Cheapflights users on 6/14. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/194:45 pm
BOS
- YTZ
1 stop5h 33m
Porter Airlines
Wed 7/228:00 am
YTZ
- BOS
2 stops8h 00m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$345
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/101:25 pm
PWM
- YUL
1 stop20h 23m
American Airlines
Fri 7/177:51 am
YUL
- PWM
2 stops16h 08m
American Airlines
Deal found 6/10![American Airlines logo]()
$562
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:00 am
BOS
- YUL
2 stops12h 10m
Delta
Sun 9/139:28 am
YUL
- BOS
1 stop6h 58m
Delta
Deal found 6/12![Delta logo]()
$447
This Air Canada deal was found by Cheapflights users on 6/15. 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.
Thu 7/3010:40 am
BOS
- YQG
2 stops8h 22m
Air Canada
Thu 8/64:05 pm
YQG
- BOS
1 stop6h 33m
Air Canada
Deal found 6/15![Air Canada logo]()
$606
This Porter Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/154:45 pm
BOS
- YTZ
1 stop5h 33m
Porter Airlines
Tue 7/219:00 am
YTZ
- BOS
2 stops7h 00m
Porter Airlines
Deal found 6/13![Porter Airlines logo]()
$345
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:41 pm
PWM
- YUL
1 stop17h 08m
American Airlines
Sun 9/1310:30 am
YUL
- PWM
1 stop23h 47m
American Airlines
Deal found 6/10![American Airlines logo]()
$568
Last-minute flights from Maine to OntarioDiscover last-minute flight deals from Maine to Ontario. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Maine to Ontario. Data last updated June 15, 2026 and is based on user searches.
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.
Thu 6/257:10 am
BOS
- YTZ
Nonstop1h 47m
Porter Airlines
Mon 7/68:50 am
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$217
This Mytrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:35 pm
BOS
- YTZ
1 stop4h 16m
Air Canada
Mon 7/67:15 am
YTZ
- BOS
Nonstop1h 37m
Air Canada
Deal found 6/12![Air Canada logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/97:10 am
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Thu 7/166:05 pm
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$211
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.
Thu 7/98:25 pm
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Tue 7/141:15 pm
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$212
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:35 am
BOS
- YTZ
Nonstop1h 59m
Air Canada
Sun 7/127:15 am
YTZ
- BOS
Nonstop1h 37m
Air Canada
Deal found 6/14![Air Canada logo]()
$213
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.
Thu 7/167:10 am
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Mon 7/203:05 pm
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$206
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.
Fri 7/177:10 am
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Sun 7/268:50 am
YTZ
- BOS
Nonstop1h 39m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$216
This Flightnetwork deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” 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.
Fri 7/245:45 am
BOS
- YTZ
2 stops7h 30m
Air Canada
Wed 7/299:30 am
YTZ
- BOS
1 stop5h 11m
Air Canada
Deal found 6/13![Air Canada logo]()
$214
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:10 am
BOS
- YTZ
Nonstop1h 49m
Multiple Airlines
Sun 8/27:15 am
YTZ
- BOS
Nonstop1h 37m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$210
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/265:45 am
BOS
- YTZ
2 stops7h 30m
Air Canada
Sun 8/27:15 am
YTZ
- BOS
Nonstop1h 37m
Air Canada
Deal found 6/11![Air Canada logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2711:10 am
BOS
- YTZ
Nonstop1h 49m
Porter Airlines
Mon 8/38:50 am
YTZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/12![Porter Airlines logo]()
$207
This Trip.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2710:05 am
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Mon 8/35:35 pm
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 6/12![Porter Airlines logo]()
$218
One-way flights from Maine to OntarioSearch for one-way flight options from Maine to Ontario. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Maine to Ontario. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This FlipMilhas 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 FlipMilhas is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:45 am
BOS
- YOW
1 stop3h 39m
GOL
Deal found 6/10![GOL logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/244:45 pm
BOS
- YUL
Nonstop1h 30m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$99
This Trip.com deal was found by Cheapflights users on 6/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/124:45 pm
BOS
- YUL
Nonstop1h 30m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$100
This Booking.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:10 am
BOS
- YUL
1 stop6h 30m
Porter Airlines
Deal found 6/11![Porter Airlines logo]()
$103
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 7/295:30 pm
BOS
- YUL
1 stop4h 40m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$104
This FlightHub deal was found by Cheapflights users on 6/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/111:10 am
BOS
- YUL
1 stop7h 00m
Porter Airlines
Deal found 6/15![Porter Airlines logo]()
$105
This Air Canada deal was found by Cheapflights users on 6/15. 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.
Wed 7/15:45 am
BOS
- YUL
Nonstop1h 30m
Air Canada
Deal found 6/15![Air Canada logo]()
$106
This Flightnetwork deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:45 pm
BOS
- YUL
1 stop7h 02m
Air Canada
Deal found 6/12![Air Canada logo]()
$107
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 7/711:10 am
BOS
- YUL
1 stop7h 00m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 6/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:35 pm
BOS
- YYZ
1 stop6h 29m
Porter Airlines
Deal found 6/14![Porter Airlines logo]()
$111
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/144:45 pm
BOS
- YTZ
1 stop5h 33m
Porter Airlines
Deal found 6/10![Porter Airlines logo]()
$111
This Air Canada deal was found by Cheapflights users on 6/14. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/242:45 pm
BOS
- YUL
1 stop7h 02m
Air Canada
Deal found 6/14![Air Canada logo]()
$111
Find flight deals from Maine to Ontario
Keep the following information in mind while searching for Maine to Ontario flight deals. Data was last updated June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $201 (Kiwi.com) |
One-way from | $81 (FlipMilhas) |
Cheapflights Fare Finder
Customize your flight search to find flights from Maine 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 15, 2026.
Use the filters below to find and compare flights from Maine to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Wed 7/15
7:35 pm-9:34 pm
Nonstop1h 59m
Toronto Island
Fri 7/17
7:15 am-8:52 am
Nonstop1h 37m
$256
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Wed 7/15
10:50 am-12:45 pm
Nonstop1h 55m
Toronto Pearson Intl
Fri 7/17
4:35 pm-6:22 pm
Nonstop1h 47m
$265
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Tue 7/28
3:35 pm-10:04 pm
1 stop6h 29m
Toronto Pearson Intl
Tue 8/4
7:25 am-9:05 am
Nonstop1h 40m
$270
BostonMontreal
BOS - YUL
BOSYUL
Boston Logan Intl
Sat 7/4
9:25 am-7:45 pm
1 stop10h 20m
Montreal Pierre Elliott Trudeau Intl
Sun 7/5
8:20 am-9:45 am
Nonstop1h 25m
$289
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Wed 7/8
9:00 am-6:09 pm
1 stop9h 09m
Toronto Pearson Intl
Fri 7/24
6:59 pm-11:31 pm
1 stop4h 32m
$290
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Sun 7/12
7:19 am-3:46 pm
1 stop8h 27m
Toronto Pearson Intl
Fri 7/17
5:15 pm-1:14 am
1 stop7h 59m
$290
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Tue 7/14
8:15 am-3:46 pm
1 stop7h 31m
Toronto Pearson Intl
Tue 7/21
5:15 pm-1:14 am
1 stop7h 59m
$290
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Wed 7/22
3:35 pm-5:34 am
2 stops13h 59m
Toronto Pearson Intl
Sun 7/26
7:25 am-9:05 am
Nonstop1h 40m
$293
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Mon 7/6
9:00 am-6:09 pm
1 stop9h 09m
Toronto Pearson Intl
Thu 7/23
2:31 pm-11:31 pm
1 stop9h 00m
$295
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Fri 7/3
4:00 pm-11:43 pm
1 stop7h 43m
Toronto Pearson Intl
Thu 7/23
2:31 pm-11:31 pm
1 stop9h 00m
$295
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Maine to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Maine with our price prediction graph.
BOS-YOW
BOS-YUL
BOS-YYZ
PWM-YYZ
BOS-YTZ
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 Maine to Ontario
USME-CAON
BOS-YOW
BOS-YUL
BOS-YYZ
PWM-YYZ
No data available for this route at this time. Please check back soon.
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 15, 2026.
Get a feel of what it's like to fly with American Airlines from Maine to Ontario by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Overall
7.1
Crew
7.9
Entertainment
6.8
Food
6.4
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Boarding
7.5
Overall
7.1
Crew
7.9
Entertainment
6.8
Food
6.4
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Related info for your journey
Find useful and relevant information for your journey from Maine 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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