$126+ Cheap flights from Ontario (ONT) to Massachusetts
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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
Apr 18 — Apr 251
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Massachusetts with Cheapflights
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Cheapest flights from Ontario to MassachusettsExplore the most affordable flight options available from Ontario to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.
Explore the most affordable flight options available from Ontario to Massachusetts. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:39 am
ONT
- BOS
1 stop10h 20m
Alaska Airlines
Wed 5/67:00 am
BOS
- ONT
1 stop10h 30m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:50 pm
ONT
- BOS
1 stop9h 00m
Southwest
Tue 4/142:25 pm
BOS
- ONT
2 stops10h 05m
Southwest
Deal found 3/15![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:55 pm
ONT
- BOS
2 stops9h 20m
Southwest
Sat 5/91:50 pm
BOS
- ONT
2 stops10h 30m
Southwest
Deal found 3/17![Southwest logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:39 am
ONT
- BOS
1 stop10h 20m
Alaska Airlines
Tue 5/57:00 am
BOS
- ONT
1 stop10h 32m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$266
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:05 am
ONT
- BOS
1 stop7h 47m
United Airlines
Wed 4/221:30 pm
BOS
- ONT
1 stop11h 20m
United Airlines
Deal found 3/17![United Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:35 pm
ONT
- BOS
2 stops10h 52m
American Airlines
Tue 5/54:21 pm
BOS
- ONT
1 stop9h 15m
American Airlines
Deal found 3/17![American Airlines logo]()
$276
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:55 pm
ONT
- BOS
1 stop7h 10m
Southwest
Tue 5/195:35 am
BOS
- ONT
1 stop7h 40m
Southwest
Deal found 3/17![Southwest logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/110:39 am
ONT
- BOS
1 stop10h 20m
Alaska Airlines
Mon 5/44:33 pm
BOS
- ONT
1 stop10h 26m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:50 pm
ONT
- BOS
1 stop9h 00m
Southwest
Mon 4/137:20 am
BOS
- ONT
1 stop10h 55m
Southwest
Deal found 3/16![Southwest logo]()
$287
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:50 pm
ONT
- BOS
1 stop6h 55m
Southwest
Tue 6/165:00 am
BOS
- ONT
1 stop10h 40m
Southwest
Deal found 3/17![Southwest logo]()
$290
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:22 pm
ONT
- BOS
1 stop8h 37m
American Airlines
Wed 4/19:10 am
BOS
- ONT
1 stop10h 12m
American Airlines
Deal found 3/17![American Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:55 pm
ONT
- ALB
1 stop7h 05m
Southwest
Sun 5/39:00 am
ALB
- ONT
1 stop9h 10m
Southwest
Deal found 3/17![Southwest logo]()
$297
Best flights from Ontario to MassachusettsDiscover carefully curated flight deals from Ontario to Massachusetts that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 19, 2026.
Discover carefully curated flight deals from Ontario to Massachusetts that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 19, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:00 am
ONT
- BOS
1 stop19h 53m
Alaska Airlines
Mon 4/136:10 pm
BOS
- ONT
1 stop18h 29m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:55 pm
ONT
- ALB
1 stop7h 05m
Southwest
Sun 5/39:00 am
ALB
- ONT
1 stop9h 10m
Southwest
Deal found 3/14![Southwest logo]()
$297
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
ONT
- BOS
1 stop7h 57m
Delta
Tue 9/154:20 pm
BOS
- ONT
1 stop8h 36m
Delta
Deal found 3/17![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/307:59 pm
ONT
- ORH
2 stops14h 20m
American Airlines
Fri 4/31:44 pm
ORH
- ONT
2 stops22h 07m
American Airlines
Deal found 3/14![American Airlines logo]()
$347
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:40 pm
ONT
- ALB
1 stop6h 50m
United Airlines
Wed 5/66:00 am
ALB
- ONT
2 stops14h 52m
United Airlines
Deal found 3/17![United Airlines logo]()
$402
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:05 pm
ONT
- BOS
1 stop10h 04m
Delta
Tue 9/154:20 pm
BOS
- ONT
1 stop8h 36m
Delta
Deal found 3/17![Delta logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:10 pm
ONT
- BOS
1 stop8h 52m
Alaska Airlines
Tue 9/157:20 am
BOS
- ONT
1 stop10h 27m
Alaska Airlines
Deal found 3/17![Alaska Airlines logo]()
$348
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:05 am
ONT
- ALB
2 stops11h 00m
Southwest
Fri 5/82:55 pm
ALB
- ONT
2 stops11h 10m
Southwest
Deal found 3/17![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:55 pm
ONT
- ALB
1 stop7h 30m
Southwest
Thu 6/115:55 pm
ALB
- ONT
1 stop7h 30m
Southwest
Deal found 3/18![Southwest logo]()
$372
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/21:40 pm
ONT
- BDL
1 stop7h 17m
United Airlines
Tue 5/55:05 pm
BDL
- ONT
1 stop8h 30m
United Airlines
Deal found 3/17![United Airlines logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:33 am
ONT
- BOS
1 stop10h 26m
Alaska Airlines
Sun 4/267:15 am
BOS
- ONT
1 stop19h 44m
Alaska Airlines
Deal found 3/17![Alaska Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:50 am
ONT
- BDL
2 stops10h 45m
Delta
Thu 5/211:02 pm
BDL
- ONT
2 stops13h 32m
Delta
Deal found 3/16![Delta logo]()
$405
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/32:39 pm
ONT
- ORH
2 stops19h 40m
American Airlines
Wed 4/82:39 pm
ORH
- ONT
2 stops12h 07m
American Airlines
Deal found 3/17![American Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:55 pm
ONT
- BDL
1 stop7h 45m
Southwest
Thu 4/235:50 am
BDL
- ONT
1 stop12h 25m
Southwest
Deal found 3/17![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:30 pm
ONT
- BOS
1 stop8h 28m
United Airlines
Tue 6/93:08 pm
BOS
- ONT
1 stop10h 38m
United Airlines
Deal found 3/17![United Airlines logo]()
$426
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/611:58 pm
ONT
- ORH
2 stops35h 16m
American Airlines
Sun 4/122:39 pm
ORH
- ONT
2 stops23h 55m
American Airlines
Deal found 3/17![American Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/266:30 pm
ONT
- BOS
1 stop8h 28m
United Airlines
Tue 6/26:00 am
BOS
- ONT
1 stop9h 12m
United Airlines
Deal found 3/17![United Airlines logo]()
$426
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:55 pm
ONT
- BDL
2 stops9h 45m
Southwest
Thu 5/2111:40 am
BDL
- ONT
2 stops11h 25m
Southwest
Deal found 3/14![Southwest logo]()
$392
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/125:09 pm
ONT
- BOS
1 stop10h 01m
Delta
Tue 4/1410:20 am
BOS
- ONT
1 stop9h 05m
Delta
Deal found 3/17![Delta logo]()
$458
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2611:55 pm
ONT
- BOS
2 stops10h 35m
Southwest
Sat 7/116:40 am
BOS
- ONT
1 stop14h 10m
Southwest
Deal found 3/16![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 3/14. 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 5/306:30 am
ONT
- BOS
1 stop10h 00m
United Airlines
Sat 6/133:08 pm
BOS
- ONT
1 stop10h 38m
United Airlines
Deal found 3/14![United Airlines logo]()
$435
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/511:58 pm
ONT
- ORH
2 stops35h 16m
American Airlines
Sat 4/112:39 pm
ORH
- ONT
2 stops23h 55m
American Airlines
Deal found 3/17![American Airlines logo]()
$482
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:49 pm
ONT
- BOS
2 stops15h 40m
Delta
Thu 4/236:54 pm
BOS
- ONT
1 stop7h 50m
Delta
Deal found 3/18![Delta logo]()
$463
This Southwest deal was found by Cheapflights users on 3/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:50 pm
ONT
- BOS
1 stop9h 00m
Southwest
Sun 5/175:15 am
BOS
- ONT
1 stop7h 35m
Southwest
Deal found 3/14![Southwest logo]()
$409
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/410:56 am
ONT
- ORH
2 stops23h 23m
American Airlines
Sun 4/122:39 pm
ORH
- ONT
2 stops30h 58m
American Airlines
Deal found 3/17![American Airlines logo]()
$527
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:49 pm
ONT
- ALB
1 stop8h 10m
Delta
Mon 4/201:11 pm
ALB
- ONT
1 stop8h 22m
Delta
Deal found 3/16![Delta logo]()
$505
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/410:56 am
ONT
- ORH
2 stops23h 23m
American Airlines
Thu 4/92:39 pm
ORH
- ONT
2 stops22h 30m
American Airlines
Deal found 3/17![American Airlines logo]()
$552
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:25 pm
ONT
- ALB
2 stops10h 20m
Southwest
Sat 6/273:15 pm
ALB
- ONT
1 stop8h 20m
Southwest
Deal found 3/19![Southwest logo]()
$462
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:25 pm
ONT
- ALB
2 stops10h 20m
Southwest
Thu 6/256:05 am
ALB
- ONT
2 stops10h 55m
Southwest
Deal found 3/19![Southwest logo]()
$467
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/37:59 pm
ONT
- ORH
2 stops14h 20m
American Airlines
Sun 4/122:39 pm
ORH
- ONT
2 stops10h 20m
American Airlines
Deal found 3/16![American Airlines logo]()
$645
Last-minute flights from Ontario to MassachusettsDiscover last-minute flight deals from Ontario to Massachusetts. Data last updated March 19, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Massachusetts. Data last updated March 19, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:25 pm
ONT
- BOS
1 stop10h 03m
Delta
Tue 4/76:44 pm
BOS
- ONT
1 stop8h 07m
Delta
Deal found 3/17![Delta logo]()
$300
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:22 pm
ONT
- BOS
1 stop8h 37m
American Airlines
Wed 4/19:10 am
BOS
- ONT
1 stop10h 12m
American Airlines
Deal found 3/17![American Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:22 pm
ONT
- BOS
1 stop8h 37m
American Airlines
Tue 3/318:26 am
BOS
- ONT
2 stops10h 56m
American Airlines
Deal found 3/17![American Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:02 pm
ONT
- BOS
1 stop9h 32m
American Airlines
Tue 4/73:18 pm
BOS
- ONT
1 stop8h 36m
American Airlines
Deal found 3/16![American Airlines logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:00 am
ONT
- BOS
1 stop19h 53m
Alaska Airlines
Mon 4/136:10 pm
BOS
- ONT
1 stop18h 29m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$251
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:50 pm
ONT
- BOS
1 stop9h 00m
Southwest
Tue 4/142:25 pm
BOS
- ONT
2 stops10h 05m
Southwest
Deal found 3/15![Southwest logo]()
$256
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:50 pm
ONT
- BOS
1 stop9h 00m
Southwest
Mon 4/137:20 am
BOS
- ONT
1 stop10h 55m
Southwest
Deal found 3/16![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:05 am
ONT
- BOS
1 stop7h 47m
United Airlines
Wed 4/221:30 pm
BOS
- ONT
1 stop11h 20m
United Airlines
Deal found 3/17![United Airlines logo]()
$271
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:55 pm
ONT
- BOS
1 stop8h 50m
Southwest
Sat 4/254:50 pm
BOS
- ONT
1 stop8h 10m
Southwest
Deal found 3/18![Southwest logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:39 am
ONT
- BOS
1 stop10h 20m
Alaska Airlines
Wed 5/67:00 am
BOS
- ONT
1 stop10h 30m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$266
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:39 am
ONT
- BOS
1 stop10h 20m
Alaska Airlines
Mon 5/44:33 pm
BOS
- ONT
1 stop10h 26m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:55 pm
ONT
- ALB
1 stop7h 05m
Southwest
Sun 5/39:00 am
ALB
- ONT
1 stop9h 10m
Southwest
Deal found 3/17![Southwest logo]()
$297
One-way flights from Ontario to MassachusettsSearch for one-way flight options from Ontario to Massachusetts. Find affordable one-way fares based on user searches. Data last updated March 19, 2026.
Search for one-way flight options from Ontario to Massachusetts. Find affordable one-way fares based on user searches. Data last updated March 19, 2026.
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:19 pm
ONT
- BOS
1 stop9h 05m
American Airlines
Deal found 3/17![American Airlines logo]()
$126
This CheapOair deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:59 pm
ONT
- BOS
1 stop16h 34m
Alaska Airlines
Deal found 3/17![Alaska Airlines logo]()
$131
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3010:39 am
ONT
- BOS
1 stop10h 20m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$141
This CheapOair deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:15 am
ONT
- BOS
1 stop16h 05m
Alaska Airlines
Deal found 3/17![Alaska Airlines logo]()
$146
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/95:09 pm
ONT
- BOS
1 stop10h 01m
Delta
Deal found 3/16![Delta logo]()
$149
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:55 pm
ONT
- ALB
1 stop7h 05m
Southwest
Deal found 3/17![Southwest logo]()
$149
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:49 pm
ONT
- BOS
1 stop10h 35m
United Airlines
Deal found 3/18![United Airlines logo]()
$150
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:55 pm
ONT
- BOS
1 stop9h 45m
Southwest
Deal found 3/15![Southwest logo]()
$151
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:25 pm
ONT
- BOS
1 stop10h 03m
Delta
Deal found 3/16![Delta logo]()
$152
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:59 pm
ONT
- ALB
2 stops11h 16m
American Airlines
Deal found 3/17![American Airlines logo]()
$154
This JetBlue deal was found by Cheapflights users on 3/14. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:00 pm
ONT
- BOS
1 stop9h 48m
JetBlue
Deal found 3/14![JetBlue logo]()
$155
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:29 pm
ONT
- BDL
1 stop7h 51m
American Airlines
Deal found 3/17![American Airlines logo]()
$157
Find flight deals from Ontario to Massachusetts
Keep the following information in mind while searching for Ontario to Massachusetts flight deals. Data was last updated March 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $251 (CheapOair) |
One-way from | $126 (Southwest) |
Popular in | July |
Cheapest in | January |
Average price | $388 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Massachusetts 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 19, 2026.
Use the filters below to find and compare flights from Ontario to Massachusetts that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Thu 4/9
7:00 am-5:53 am
1 stop19h 53m
Boston Logan Intl
Mon 4/13
6:10 pm-9:39 am
1 stop18h 29m
$251
OntarioAlbany
ONT - ALB
ONTALB
Ontario
Thu 4/30
9:55 pm-8:00 am
1 stop7h 05m
Albany Intl
Sun 5/3
9:00 am-3:10 pm
1 stop9h 10m
$297
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Wed 9/9
7:00 am-5:57 pm
1 stop7h 57m
Boston Logan Intl
Tue 9/15
4:20 pm-9:56 pm
1 stop8h 36m
$309
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Thu 9/10
5:05 pm-6:09 am
1 stop10h 04m
Boston Logan Intl
Tue 9/15
4:20 pm-9:56 pm
1 stop8h 36m
$309
OntarioWorcester
ONT - ORH
ONTORH
Ontario
Mon 3/30
7:59 pm-1:19 pm
2 stops14h 20m
Worcester
Fri 4/3
1:44 pm-8:51 am
2 stops22h 07m
$347
OntarioBoston
ONT - BOS
ONTBOS
Ontario
Thu 9/10
6:10 pm-6:02 am
1 stop8h 52m
Boston Logan Intl
Tue 9/15
7:20 am-2:47 pm
1 stop10h 27m
$348
OntarioAlbany
ONT - ALB
ONTALB
Ontario
Tue 5/5
8:05 am-10:05 pm
2 stops11h 00m
Albany Intl
Fri 5/8
2:55 pm-11:05 pm
2 stops11h 10m
$357
Quickest round-trip
OntarioAlbany
ONT - ALB
ONTALB
Ontario
Wed 6/3
9:55 pm-8:25 am
1 stop7h 30m
Albany Intl
Thu 6/11
5:55 pm-10:25 pm
1 stop7h 30m
$372
OntarioHartford
ONT - BDL
ONTBDL
Ontario
Thu 4/16
11:55 pm-10:40 am
1 stop7h 45m
Hartford Bradley Intl
Thu 4/23
5:50 am-3:15 pm
1 stop12h 25m
$387
OntarioHartford
ONT - BDL
ONTBDL
Ontario
Thu 5/7
9:55 pm-10:40 am
2 stops9h 45m
Hartford Bradley Intl
Thu 5/21
11:40 am-8:05 pm
2 stops11h 25m
$392
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Massachusetts
Have a flexible travel schedule? Discover the best time to fly to Massachusetts from Ontario with our price prediction graph.
ONT-BOS
ONT-ALB
ONT-BDL
ONT-ORH
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Massachusetts
ONT-USMA
ONT-BOS
ONT-ALB
ONT-BDL
ONT-ORH
What is the cheapest month to book a flight from Ontario to Massachusetts?
Currently, November is the cheapest month in which you can book a flight from Ontario to Massachusetts (average of $148). Flying from Ontario to Massachusetts in July is currently the most expensive (average of $188). 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.
Weekly flight availability from Ontario to Massachusetts
Explore weekly flight availability from Ontario to Massachusetts. 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 19, 2026.
The most flights from ONT to USMA are scheduled on a Monday (1 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (1 on average).
Reviews of airlines servicing Massachusetts
Get insights into the airlines that provide service to Massachusetts. 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 Massachusetts. Reviews last updated March 19, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Ontario to Massachusetts by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Massachusetts. 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 Ontario to Massachusetts
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Complete your trip
Complete your trip to Massachusetts by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Massachusetts by cabin class
Find flights from Ontario to Massachusetts, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Massachusetts flights
Browse other Ontario and Massachusetts flight options. Last updated on March 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Massachusetts flights
Consider these flights traveling from Ontario to Massachusetts.
Top 6 airlines flying from Ontario to Massachusetts
Discover the top 6 airlines that operate flights from Ontario to Massachusetts. 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$155 | Average$319 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$328 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$248 | Average$410 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$366 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$292 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$297 | Average$430 | FlexibilityNo cancel fee | On-time63% |