$87+ Cheap flights from Boston (BOS) 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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — YYZ
Apr 12 — Apr 191
Round-trip
1 adult, Economy
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Cheapest flights from Boston to OntarioExplore the most affordable flight options available from Boston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.
Explore the most affordable flight options available from Boston to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.
This FlightHub deal was found by Cheapflights users on 3/10. 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.
Fri 5/226:35 pm
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Mon 5/253:55 pm
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$219
This Booking.com deal was found by Cheapflights users on 3/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:45 am
BOS
- YYZ
Nonstop1h 53m
Air Canada
Fri 5/18:10 am
YYZ
- BOS
Nonstop1h 44m
Air Canada
Deal found 3/10![Air Canada logo]()
$221
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:45 am
BOS
- YYZ
1 stop4h 50m
Air Canada
Sat 8/88:55 pm
YYZ
- BOS
Nonstop1h 43m
Air Canada
Deal found 3/9![Air Canada logo]()
$222
This FlightHub deal was found by Cheapflights users on 3/10. 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.
Fri 6/1210:05 am
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Wed 6/177:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Fri 6/1210:05 am
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Mon 6/157:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/11![Porter Airlines logo]()
$225
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:45 am
BOS
- YYZ
1 stop4h 50m
Air Canada
Thu 8/610:30 am
YYZ
- BOS
1 stop4h 11m
Air Canada
Deal found 3/9![Air Canada logo]()
$227
This FlightHub deal was found by Cheapflights users on 3/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:35 pm
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Fri 5/227:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/11![Porter Airlines logo]()
$229
This FlightHub deal was found by Cheapflights users on 3/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1910:05 am
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Mon 6/227:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/11![Porter Airlines logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 6/126:35 pm
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Sun 6/147:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$231
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/23:30 pm
BOS
- YTZ
1 stop4h 33m
Multiple Airlines
Sun 4/55:30 pm
YTZ
- BOS
1 stop3h 57m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$235
This eDestinos deal was found by Cheapflights users on 3/9. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 am
BOS
- YTZ
Nonstop1h 54m
Porter Airlines
Thu 4/307:35 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/197:10 am
BOS
- YTZ
Nonstop1h 47m
Porter Airlines
Thu 7/233:05 pm
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$244
Best flights from Boston to OntarioDiscover carefully curated flight deals from Boston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 13, 2026.
Discover carefully curated flight deals from Boston to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 13, 2026.
This Porter Airlines deal was found by Cheapflights users on 3/8. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:45 pm
BOS
- YUL
Nonstop1h 30m
Porter Airlines
Tue 6/27:20 pm
YUL
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$298
This United Airlines deal was found by Cheapflights users on 3/9. 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 6/107:30 am
BOS
- YYZ
1 stop4h 13m
United Airlines
Tue 6/168:50 am
YYZ
- BOS
1 stop5h 12m
United Airlines
Deal found 3/9![United Airlines logo]()
$347
This Delta deal was found by Cheapflights users on 3/9. 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.
Thu 4/166:00 am
BOS
- YYZ
1 stop7h 44m
Delta
Mon 4/206:00 am
YYZ
- BOS
1 stop8h 21m
Delta
Deal found 3/9![Delta logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Mon 4/276:30 pm
BOS
- YXU
1 stop10h 50m
Multiple Airlines
Mon 5/45:55 pm
YXU
- BOS
2 stops22h 05m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$515
This Air Canada deal was found by Cheapflights users on 3/8. 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.
Thu 4/3010:45 am
BOS
- YQG
1 stop8h 24m
Air Canada
Mon 5/44:05 pm
YQG
- BOS
1 stop6h 34m
Air Canada
Deal found 3/8![Air Canada logo]()
$529
This oojo deal was found by Cheapflights users on 3/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:30 pm
BOS
- YXU
1 stop10h 50m
WestJet
Sun 5/246:10 am
YXU
- BOS
1 stop11h 30m
WestJet
Deal found 3/9![WestJet logo]()
$600
This Porter Airlines deal was found by Cheapflights users on 3/8. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/43:25 pm
BOS
- YTZ
1 stop6h 23m
Porter Airlines
Sun 6/78:50 am
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$307
This Porter Airlines deal was found by Cheapflights users on 3/8. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:35 pm
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Sat 6/67:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$311
This Porter Airlines deal was found by Cheapflights users on 3/12. 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 6/64:45 pm
BOS
- YYZ
1 stop19h 43m
Porter Airlines
Sun 6/73:55 pm
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/12![Porter Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:00 am
BOS
- YYZ
1 stop8h 14m
Delta
Sun 4/56:00 am
YYZ
- BOS
1 stop8h 11m
Delta
Deal found 3/11![Delta logo]()
$387
This Porter Airlines deal was found by Cheapflights users on 3/10. 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 4/2510:20 am
BOS
- YTZ
Nonstop1h 54m
Porter Airlines
Sat 5/23:05 pm
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/2812:00 pm
BOS
- YYZ
1 stop8h 27m
Delta
Fri 4/36:14 pm
YYZ
- BOS
1 stop4h 41m
Delta
Deal found 3/11![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/8. 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 5/227:30 am
BOS
- YYZ
1 stop4h 13m
United Airlines
Tue 6/27:30 am
YYZ
- BOS
1 stop3h 46m
United Airlines
Deal found 3/8![United Airlines logo]()
$427
This Porter Airlines deal was found by Cheapflights users on 3/9. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:30 pm
BOS
- YTZ
1 stop4h 33m
Porter Airlines
Wed 4/87:35 am
YTZ
- BOS
2 stops10h 37m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$317
This Porter Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/93:25 pm
BOS
- YTZ
1 stop6h 23m
Porter Airlines
Sun 7/126:00 pm
YTZ
- BOS
Nonstop1h 41m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$318
This Porter Airlines deal was found by Cheapflights users on 3/9. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1310:05 am
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Wed 6/177:25 am
YYZ
- BOS
Nonstop1h 40m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$321
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 7/2212:00 pm
BOS
- YUL
2 stops11h 10m
Delta
Thu 7/302:30 pm
YUL
- BOS
1 stop7h 57m
Delta
Deal found 3/9![Delta logo]()
$475
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2210:05 am
BOS
- YXU
3 stops19h 15m
Multiple Airlines
Mon 5/255:55 pm
YXU
- BOS
2 stops23h 40m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$623
This Air Canada deal was found by Cheapflights users on 3/9. 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.
Thu 6/255:10 am
BOS
- YQT
1 stop5h 44m
Air Canada
Thu 6/256:25 pm
YQT
- BOS
1 stop15h 28m
Air Canada
Deal found 3/9![Air Canada logo]()
$631
This Porter Airlines deal was found by Cheapflights users on 3/8. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/43:25 pm
BOS
- YYZ
1 stop4h 19m
Porter Airlines
Tue 6/163:40 pm
YYZ
- BOS
1 stop5h 15m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 3/8. 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 4/72:00 pm
BOS
- YUL
2 stops9h 13m
Delta
Tue 4/1412:55 pm
YUL
- BOS
2 stops9h 31m
Delta
Deal found 3/8![Delta logo]()
$481
This Air Canada deal was found by Cheapflights users on 3/12. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:45 am
BOS
- YQT
2 stops11h 39m
Air Canada
Thu 9/1011:45 am
YQT
- BOS
2 stops9h 42m
Air Canada
Deal found 3/12![Air Canada logo]()
$634
This Porter Airlines deal was found by Cheapflights users on 3/9. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/23:30 pm
BOS
- YTZ
1 stop4h 33m
Porter Airlines
Sat 4/47:35 am
YTZ
- BOS
2 stops10h 37m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/257:10 am
BOS
- YQT
1 stop5h 30m
Multiple Airlines
Thu 6/257:50 pm
YQT
- BOS
2 stops13h 15m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$681
This Porter Airlines deal was found by Cheapflights users on 3/8. 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 Porter Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:30 pm
BOS
- YTZ
1 stop4h 33m
Porter Airlines
Sat 4/47:35 am
YTZ
- BOS
2 stops10h 37m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$334
This Air Canada deal was found by Cheapflights users on 3/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:10 am
BOS
- YXU
1 stop6h 33m
Air Canada
Tue 5/56:10 pm
YXU
- BOS
1 stop4h 29m
Air Canada
Deal found 3/11![Air Canada logo]()
$672
This Porter Airlines deal was found by Cheapflights users on 3/12. 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.
Fri 6/194:45 pm
BOS
- YTZ
1 stop5h 35m
Porter Airlines
Tue 6/2311:55 am
YTZ
- BOS
1 stop4h 05m
Porter Airlines
Deal found 3/12![Porter Airlines logo]()
$337
This Air Canada deal was found by Cheapflights users on 3/10. 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 4/241:00 pm
BOS
- YXU
1 stop4h 04m
Air Canada
Fri 5/15:40 am
YXU
- BOS
1 stop6h 06m
Air Canada
Deal found 3/10![Air Canada logo]()
$672
This Porter Airlines deal was found by Cheapflights users on 3/12. 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.
Wed 6/174:45 pm
BOS
- YTZ
1 stop5h 35m
Porter Airlines
Tue 6/2311:55 am
YTZ
- BOS
1 stop4h 05m
Porter Airlines
Deal found 3/12![Porter Airlines logo]()
$337
This Air Canada deal was found by Cheapflights users on 3/10. 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.
Wed 7/85:00 pm
BOS
- YXU
1 stop4h 40m
Air Canada
Tue 7/146:00 am
YXU
- BOS
1 stop3h 53m
Air Canada
Deal found 3/10![Air Canada logo]()
$672
Last-minute flights from Boston to OntarioDiscover last-minute flight deals from Boston to Ontario. Data last updated March 13, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Ontario. Data last updated March 13, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:30 pm
BOS
- YTZ
1 stop4h 33m
Porter Airlines
Fri 4/37:35 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$251
This Trip.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/26:15 am
BOS
- YYZ
Nonstop1h 53m
Air Canada
Sun 4/58:15 am
YYZ
- BOS
Nonstop1h 41m
Air Canada
Deal found 3/10![Air Canada logo]()
$233
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/23:30 pm
BOS
- YTZ
1 stop4h 33m
Multiple Airlines
Sun 4/55:30 pm
YTZ
- BOS
1 stop3h 57m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$235
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/23:30 pm
BOS
- YYZ
1 stop6h 40m
Multiple Airlines
Sun 4/58:15 am
YYZ
- BOS
Nonstop1h 41m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$243
This Trip.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/23:30 pm
BOS
- YTZ
1 stop4h 33m
Porter Airlines
Sun 4/58:00 am
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$250
This Trip.com deal was found by Cheapflights users on 3/9. 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.
Fri 4/103:30 pm
BOS
- YTZ
1 stop4h 33m
Porter Airlines
Mon 4/137:35 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$249
This eDestinos deal was found by Cheapflights users on 3/9. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 am
BOS
- YTZ
Nonstop1h 54m
Porter Airlines
Thu 4/307:35 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$242
This Booking.com deal was found by Cheapflights users on 3/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:45 am
BOS
- YYZ
Nonstop1h 53m
Air Canada
Fri 5/18:10 am
YYZ
- BOS
Nonstop1h 44m
Air Canada
Deal found 3/10![Air Canada logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 am
BOS
- YTZ
Nonstop1h 54m
Porter Airlines
Mon 4/278:00 am
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/8![Porter Airlines logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2410:20 am
BOS
- YTZ
Nonstop1h 54m
Porter Airlines
Tue 4/281:10 pm
YTZ
- BOS
Nonstop1h 35m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$253
This Mytrip deal was found by Cheapflights users on 3/11. 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.
Sat 4/255:30 am
BOS
- YYZ
1 stop5h 09m
Air Canada
Sat 5/28:10 am
YYZ
- BOS
Nonstop1h 44m
Air Canada
Deal found 3/11![Air Canada logo]()
$247
This Trip.com deal was found by Cheapflights users on 3/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:00 am
BOS
- YTZ
Nonstop1h 54m
Porter Airlines
Mon 5/410:00 am
YTZ
- BOS
1 stop6h 00m
Porter Airlines
Deal found 3/11![Porter Airlines logo]()
$255
One-way flights from Boston to OntarioSearch for one-way flight options from Boston to Ontario. Find affordable one-way fares based on user searches. Data last updated March 13, 2026.
Search for one-way flight options from Boston to Ontario. Find affordable one-way fares based on user searches. Data last updated March 13, 2026.
This Mytrip deal was found by Cheapflights users on 3/10. 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.
Sun 5/243:40 pm
BOS
- YUL
Nonstop1h 33m
Air Canada
Deal found 3/10![Air Canada logo]()
$87
This Booking.com deal was found by Cheapflights users on 3/9. 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.
Fri 8/216:00 am
BOS
- YYZ
Nonstop1h 55m
Air Canada
Deal found 3/9![Air Canada logo]()
$96
This Flightnetwork deal was found by Cheapflights users on 3/10. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/183:40 pm
BOS
- YYZ
1 stop6h 18m
Air Canada
Deal found 3/10![Air Canada logo]()
$98
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/313:35 pm
BOS
- YYZ
1 stop6h 20m
Air Canada
Deal found 3/9![Air Canada logo]()
$99
This Trip.com deal was found by Cheapflights users on 3/10. 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.
Fri 4/1010:45 am
BOS
- YYZ
Nonstop1h 53m
Air Canada
Deal found 3/10![Air Canada logo]()
$101
This oojo deal was found by Cheapflights users on 3/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:35 pm
BOS
- YYZ
Nonstop1h 55m
Porter Airlines
Deal found 3/11![Porter Airlines logo]()
$102
This Air Canada deal was found by Cheapflights users on 3/9. 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 6/225:10 am
BOS
- YYZ
Nonstop1h 55m
Air Canada
Deal found 3/9![Air Canada logo]()
$103
This Air Canada deal was found by Cheapflights users on 3/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:15 am
BOS
- YYZ
Nonstop1h 53m
Air Canada
Deal found 3/11![Air Canada logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Sun 5/174:45 pm
BOS
- YUL
Nonstop1h 30m
Porter Airlines
Deal found 3/13![Porter Airlines logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 3/3111:50 am
BOS
- YUL
1 stop4h 40m
Porter Airlines
Deal found 3/10![Porter Airlines logo]()
$110
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:10 am
BOS
- YYZ
Nonstop1h 53m
Air Canada
Deal found 3/9![Air Canada logo]()
$111
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/213:25 pm
BOS
- YTZ
1 stop3h 33m
Porter Airlines
Deal found 3/9![Porter Airlines logo]()
$112
Find flight deals from Boston to Ontario
Keep the following information in mind while searching for Boston to Ontario flight deals. Data was last updated March 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (FlightHub) |
One-way from | $87 (Mytrip) |
Popular in | November |
Cheapest in | October |
Average price | $310 |
Good round-trip deal | $256 or less |
Good one-way deal | $101 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston 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 March 13, 2026.
Use the filters below to find and compare flights from Boston to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BostonMontreal
BOS - YUL
BOSYUL
Boston Logan Intl
Mon 6/1
4:45 pm-6:15 pm
Nonstop1h 30m
Montreal Pierre Elliott Trudeau Intl
Tue 6/2
7:20 pm-8:55 pm
Nonstop1h 35m
$298
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Thu 6/4
3:25 pm-9:48 pm
1 stop6h 23m
Toronto Island
Sun 6/7
8:50 am-10:31 am
Nonstop1h 41m
$307
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Wed 6/3
6:35 pm-8:30 pm
Nonstop1h 55m
Toronto Pearson Intl
Sat 6/6
7:25 am-9:05 am
Nonstop1h 40m
$311
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Sat 6/6
4:45 pm-12:28 pm
1 stop19h 43m
Toronto Pearson Intl
Sun 6/7
3:55 pm-5:35 pm
Nonstop1h 40m
$312
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Sat 4/25
10:20 am-12:14 pm
Nonstop1h 54m
Toronto Island
Sat 5/2
3:05 pm-4:46 pm
Nonstop1h 41m
$313
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Sun 4/5
3:30 pm-8:03 pm
1 stop4h 33m
Toronto Island
Wed 4/8
7:35 am-6:12 pm
2 stops10h 37m
$317
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Thu 7/9
3:25 pm-9:48 pm
1 stop6h 23m
Toronto Island
Sun 7/12
6:00 pm-7:41 pm
Nonstop1h 41m
$318
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Sat 6/13
10:05 am-12:00 pm
Nonstop1h 55m
Toronto Pearson Intl
Wed 6/17
7:25 am-9:05 am
Nonstop1h 40m
$321
BostonToronto
BOS - YYZ
BOSYYZ
Boston Logan Intl
Thu 6/4
3:25 pm-7:44 pm
1 stop4h 19m
Toronto Pearson Intl
Tue 6/16
3:40 pm-8:55 pm
1 stop5h 15m
$325
BostonToronto
BOS - YTZ
BOSYTZ
Boston Logan Intl
Thu 4/2
3:30 pm-8:03 pm
1 stop4h 33m
Toronto Island
Sat 4/4
7:35 am-6:12 pm
2 stops10h 37m
$328
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Boston to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Boston with our price prediction graph.
BOS-YUL
BOS-YYZ
BOS-YOW
BOS-YXU
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 Boston to Ontario
BOS-CAON
BOS-YUL
BOS-YYZ
BOS-YOW
BOS-YXU
What is the cheapest month to book a flight from Boston to Region of Ontario?
Currently, April is the cheapest month in which you can book a flight from Boston to Region of Ontario (average of $118). Flying from Boston to Region of Ontario in December is currently the most expensive (average of $217). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from BOS to ON?
Find hourly flight availability from Boston to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 13, 2026.
A simple way to save on the total cost of your ticket is to fly from Boston to Region of Ontario in the morning. If you’re flexible enough to do this you can expect to save up to 23% on your trip compared to booking a flight in the evening.
What is the cheapest day to fly from Boston to Region of Ontario?
Use this chart to determine the cheapest time to fly round-trip from Boston to Ontario. Price data was last updated on March 12, 2026.
Travelers seeking maximum savings on their Boston to Region of Ontario flight should consider departing on Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Boston to Region of Ontario
Explore weekly flight availability from Boston to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 13, 2026.
The most flights from BOS to CAON are scheduled on a Wednesday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).
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 March 13, 2026.
Read through reviews of airlines operating flights from Boston to Ontario, such as Porter Airlines,Delta, andAir Transat. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.6
Overall
8.0
Entertainment
7.0
Comfort
8.0
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Food
7.6
Overall
8.0
Entertainment
7.0
Comfort
8.0
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Food
7.6
Overall
8.0
Entertainment
7.0
Comfort
8.0
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Food
7.6
Overall
8.0
Entertainment
7.0
Comfort
8.0
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Food
7.6
Overall
8.0
Entertainment
7.0
Comfort
8.0
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Crew
8.6
Food
7.6
Overall
8.0
Entertainment
7.0
Comfort
8.0
Boarding
8.2
Reviews
1 / 20
10.0
ExcellentJohn,Mar 2026
YYZ - PVR
Related info for your journey
Find useful and relevant information for your journey from Boston 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 Boston to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Ontario by cabin class
Find flights from Boston to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Ontario flights
Browse other Boston and Ontario flight options. Last updated on March 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Boston to Ontario flights
Consider these flights traveling from Boston to Ontario.
Top 6 airlines flying from Boston to Ontario
Discover the top 6 airlines that operate flights from Boston 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 March 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$125 | Average$419 | FlexibilityNo cancel fee | On-time52% | |
| Cheapest$128 | Average$194 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$145 | Average$357 | FlexibilityNo cancel fee | On-time50% | |
| Cheapest$191 | Average$371 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$220 | Average$576 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$286 | Average$402 | FlexibilityNo cancel fee | On-time71% |