$112+ Cheap flights from Ontario (ONT) to Massachusetts
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
Nov 29 — Dec 61
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Massachusetts with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Massachusetts
Cheapest
Best
Last-minute
One-way
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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/312:20 pm -
1 stop7h 55m
Mon 12/76:45 pm -
1 stop8h 12m
Deal found 10/29![Delta logo]()
$335
This Gotogate deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/105:01 pm -
1 stop9h 39m
Mon 12/146:22 pm -
1 stop19h 51m
Deal found 10/26![Alaska Airlines logo]()
$342
This Mytrip deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 12/126:00 am -
1 stop14h 59m
Tue 12/159:00 am -
1 stop10h 05m
Deal found 10/26![Alaska Airlines logo]()
$345
This Gotogate deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
1 stop14h 59m
Wed 12/99:00 am -
1 stop10h 05m
Deal found 10/28![Alaska Airlines logo]()
$347
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am -
1 stop14h 59m
Sat 12/124:56 pm -
1 stop9h 58m
Deal found 10/29![Alaska Airlines logo]()
$348
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/411:30 am -
2 stops19h 43m
Mon 12/711:08 am -
2 stops27h 43m
Deal found 10/29![Frontier logo]()
$354
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:57 am -
1 stop8h 57m
Mon 11/237:50 am -
1 stop12h 26m
Deal found 10/27![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/1212:20 pm -
1 stop7h 55m
Wed 1/66:10 am -
1 stop9h 02m
Deal found 10/29![Delta logo]()
$356
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:01 pm -
1 stop9h 39m
Mon 12/76:22 pm -
1 stop19h 51m
Deal found 10/29![Alaska Airlines logo]()
$368
This Booking.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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.
Wed 12/211:30 am -
2 stops20h 28m
Sat 12/511:08 am -
2 stops26h 37m
Deal found 10/28![Frontier logo]()
$369
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/66:00 am -
1 stop14h 59m
Thu 12/107:00 am -
1 stop12h 05m
Deal found 10/29![Alaska Airlines logo]()
$374
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 October 30, 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 October 30, 2026.
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/121:11 pm -
1 stop8h 02m
Sun 1/36:05 am -
1 stop9h 16m
Deal found 10/29![Delta logo]()
$371
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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.
Sat 12/198:05 pm -
2 stops9h 00m
Fri 1/15:00 am -
2 stops9h 55m
Deal found 10/27![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/259:25 am -
1 stop10h 56m
Sat 12/57:10 am -
1 stop11h 23m
Deal found 10/26![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/104:09 pm -
1 stop10h 31m
Sat 11/147:13 am -
1 stop11h 00m
Deal found 10/29![Alaska Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/312:20 pm -
1 stop9h 50m
Wed 12/92:54 pm -
1 stop9h 04m
Deal found 10/25![Delta logo]()
$406
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:18 pm -
1 stop8h 04m
Wed 11/181:45 pm -
1 stop10h 09m
Deal found 10/29![Delta logo]()
$407
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/269:25 am -
1 stop10h 56m
Sun 12/68:05 am -
1 stop10h 28m
Deal found 10/27![United Airlines logo]()
$449
This Alaska Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” 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 12/115:36 pm -
2 stops27h 23m
Mon 1/114:56 pm -
1 stop20h 04m
Deal found 10/25![Alaska Airlines logo]()
$498
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:15 pm -
1 stop7h 42m
Sun 11/156:05 am -
1 stop9h 12m
Deal found 10/28![Delta logo]()
$433
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” 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 11/184:17 pm -
1 stop10h 49m
Fri 11/277:15 am -
1 stop8h 18m
Deal found 10/26![United Airlines logo]()
$496
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:00 am -
1 stop7h 26m
Wed 12/25:20 am -
1 stop8h 47m
Deal found 10/28![Delta logo]()
$457
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:05 am -
1 stop7h 45m
Tue 12/16:45 pm -
1 stop8h 12m
Deal found 10/26![Delta logo]()
$496
Last-minute flights from Ontario to MassachusettsDiscover last-minute flight deals from Ontario to Massachusetts. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Massachusetts. Data last updated October 30, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
1 stop14h 58m
Tue 11/179:03 am -
1 stop12h 14m
Deal found 10/26![Alaska Airlines logo]()
$380
This Kissandfly.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:15 pm -
1 stop7h 42m
Fri 11/139:03 am -
1 stop12h 14m
Deal found 10/26![Alaska Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:29 pm -
1 stop7h 21m
Tue 11/1710:30 am -
2 stops11h 17m
Deal found 10/27![United Airlines logo]()
$376
This Southwest deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/128:45 pm -
2 stops10h 00m
Tue 11/171:20 pm -
2 stops11h 25m
Deal found 10/27![Southwest logo]()
$381
This Gotogate deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/144:09 pm -
1 stop10h 31m
Wed 11/187:13 am -
1 stop11h 00m
Deal found 10/29![Alaska Airlines logo]()
$385
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/174:09 pm -
1 stop10h 31m
Tue 12/87:00 am -
1 stop12h 05m
Deal found 10/29![Alaska Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/1912:02 pm -
1 stop8h 56m
Sat 12/54:56 pm -
1 stop9h 58m
Deal found 10/29![Alaska Airlines logo]()
$390
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/191:15 pm -
1 stop7h 42m
Thu 11/261:45 pm -
1 stop9h 04m
Deal found 10/26![Delta logo]()
$391
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/201:15 pm -
1 stop7h 42m
Thu 11/261:45 pm -
1 stop9h 04m
Deal found 10/26![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 11/211:15 pm -
1 stop7h 42m
Wed 12/26:45 pm -
1 stop8h 12m
Deal found 10/28![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:56 pm -
1 stop10h 24m
Thu 11/261:45 pm -
1 stop9h 04m
Deal found 10/28![Delta logo]()
$335
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am -
1 stop11h 50m
Fri 12/42:54 pm -
1 stop10h 01m
Deal found 10/27![Delta logo]()
$375
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 October 30, 2026.
Search for one-way flight options from Ontario to Massachusetts. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/12:00 pm -
3 stops40h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$112
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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.
Wed 12/211:30 am -
2 stops19h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 12/111:30 am -
2 stops43h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” 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 11/2611:40 am -
2 stops17h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![Frontier logo]()
$158
This Mytrip deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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.
Wed 11/2511:40 am -
2 stops19h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Frontier logo]()
$160
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 12/146:40 pm -
1 stop10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” 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 3/26:30 am -
3 stops49h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$166
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:57 am -
1 stop8h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Delta logo]()
$168
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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.
Wed 11/258:59 pm -
1 stop17h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Alaska Airlines logo]()
$174
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” 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 11/192:23 pm -
3 stops20h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![Multiple Airlines logo]()
$765
This Expedia deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/274:00 pm -
2 stops20h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$842
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $335 (Delta) |
One-way from | $112 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $451 |
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 7,457,451 searches. Data last updated October 30, 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 Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Thu 11/19
11:57 am-11:54 pm
1 stop8h 57m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$168
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 4/17
6:53 pm-8:23 am
1 stop10h 30m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$199
Quickest round-trip
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Sat 12/19
10:35 pm-9:36 am
1 stop8h 01m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$204
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Mon 1/4
4:00 pm-6:05 am
1 stop11h 05m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$204
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Wed 12/23
10:35 pm-10:42 am
1 stop9h 07m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$204
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Mon 12/14
5:01 pm-5:40 am
1 stop9h 39m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$223
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Fri 12/11
5:01 pm-5:40 am
1 stop9h 39m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$224
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Wed 12/16
7:00 am-7:40 pm
1 stop9h 40m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$233
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Mon 2/15
6:37 pm-8:00 am
1 stop10h 23m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$264
OntarioBoston
ONT Ontario - BOS Boston Logan Intl
ONTBOS
Ontario
Mon 2/8
6:37 pm-8:01 am
1 stop10h 24m
Boston Logan Intl
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$264
Showing 1-10 of 26 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-ACK
ONT-HYA
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-ACK
ONT-HYA
What is the cheapest month to book a flight from Ontario to Massachusetts?
Currently, February is the cheapest month in which you can book a flight from Ontario to Massachusetts (average of $338). Flying from Ontario to Massachusetts in July is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Massachusetts?
Airfare is below average for this route at the moment.
Ontario to Massachusetts flights typically cost between $376 and $510 in December.The cheapest round-trip price found within the last 5 days was $335 on Delta (Dec 3-Dec 7).
How far ahead should I book a flight from Ontario to Massachusetts?
Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Massachusetts. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 October 30, 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.
Food
7.0
Comfort
8.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Comfort
8.0
Overall
7.9
Boarding
8.1
Crew
8.6
Entertainment
7.4
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for Ontario to Massachusetts
See prices for flight routes from nearby airports that may be better suited for you.
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 October 30, 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 5 airlines flying from Ontario to Massachusetts
Discover the top 5 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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$426 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$248 | Average$442 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$264 | Average$388 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$284 | Average$458 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$296 | Average$444 | FlexibilityNo cancel fee | On-time71% |