HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Massachusetts

$86+ 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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 flights from Ontario to Massachusetts
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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 3/116:37 pm
ONT
-
BOS
1 stop10h 36m
United Airlines
Mon 3/164:30 pm
BOS
-
ONT
1 stop8h 48m
United Airlines
Deal found 1/27$255
This CheapOair deal was found by Cheapflights users on 1/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:00 am
ONT
-
BOS
1 stop29h 36m
Alaska Airlines
Tue 2/247:00 am
BOS
-
ONT
1 stop11h 08m
Alaska Airlines
Deal found 1/28$259
This American Airlines deal was found by Cheapflights users on 1/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:58 pm
ONT
-
BOS
1 stop8h 56m
American Airlines
Mon 3/92:12 pm
BOS
-
ONT
1 stop10h 12m
American Airlines
Deal found 1/28$260
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1711:58 pm
ONT
-
BOS
2 stops9h 20m
American Airlines
Sun 2/224:04 pm
BOS
-
ONT
1 stop10h 55m
American Airlines
Deal found 1/27$264
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:15 am
ONT
-
BOS
2 stops8h 54m
American Airlines
Mon 2/232:31 pm
BOS
-
ONT
2 stops10h 36m
American Airlines
Deal found 1/27$269
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:09 am
ONT
-
BOS
2 stops10h 40m
United Airlines
Tue 2/246:00 am
BOS
-
ONT
2 stops9h 43m
United Airlines
Deal found 1/28$270
This Alaska Airlines deal was found by Cheapflights users on 1/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2512:02 pm
ONT
-
BOS
1 stop8h 57m
Alaska Airlines
Wed 3/47:00 am
BOS
-
ONT
1 stop11h 08m
Alaska Airlines
Deal found 1/28$276
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 2/165:00 am
ONT
-
BOS
1 stop7h 35m
United Airlines
Thu 2/193:09 pm
BOS
-
ONT
1 stop8h 41m
United Airlines
Deal found 1/27$278
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:58 pm
ONT
-
BOS
2 stops9h 31m
American Airlines
Thu 2/192:12 pm
BOS
-
ONT
1 stop10h 12m
American Airlines
Deal found 1/27$283
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 4/287:00 am
ONT
-
BOS
1 stop9h 41m
United Airlines
Sat 5/166:00 am
BOS
-
ONT
1 stop9h 22m
United Airlines
Deal found 1/26$287
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 2/271:50 pm
ONT
-
BOS
1 stop7h 59m
United Airlines
Sat 3/74:30 pm
BOS
-
ONT
1 stop9h 21m
United Airlines
Deal found 1/27$291
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1711:59 pm
ONT
-
BOS
1 stop7h 50m
United Airlines
Mon 3/305:30 am
BOS
-
ONT
1 stop9h 44m
United Airlines
Deal found 1/28$292

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$255
(United Airlines)

One-way from

$86
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$283
Provider with most accurate pricing for Los Angeles-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Boston Logan Intl flights.
Search Deals
From Ontario to Massachusetts
Search Deals
One-way flight from Ontario to Massachusetts
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
Use the filters below to find and compare flights from Ontario to Massachusetts that are best for you.

Fly from

Ontario

Fly to

Massachusetts

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 2/18

7:00 am-3:36 pm

1 stop29h 36m

Boston Logan Intl

Tue 2/24

7:00 am-3:08 pm

1 stop11h 08m

$259

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 3/25

11:59 pm-10:49 am

1 stop7h 50m

Boston Logan Intl

Tue 3/31

7:09 am-12:38 pm

1 stop8h 29m

$259

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 3/11

12:02 pm-11:59 pm

1 stop8h 57m

Boston Logan Intl

Thu 3/12

4:36 pm-11:52 pm

1 stop10h 16m

$259

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 3/11

4:02 pm-6:54 am

1 stop11h 52m

Boston Logan Intl

Tue 3/17

7:00 am-3:08 pm

1 stop11h 08m

$278

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 4/28

7:00 am-7:41 pm

1 stop9h 41m

Boston Logan Intl

Sat 5/16

6:00 am-12:22 pm

1 stop9h 22m

$287

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 2/25

4:02 pm-6:54 am

1 stop11h 52m

Boston Logan Intl

Wed 3/4

7:00 am-3:08 pm

1 stop11h 08m

$299

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 2/25

9:00 pm-9:25 am

2 stops9h 25m

Boston Logan Intl

Wed 3/4

5:30 am-4:05 pm

2 stops13h 35m

$303

OntarioWorcester

ONT - ORH

ONTORH

Ontario

Fri 2/13

7:05 pm-1:05 pm

2 stops15h 00m

Worcester

Tue 2/17

1:30 pm-4:22 pm

2 stops29h 52m

$307

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 2/18

12:02 pm-11:59 pm

1 stop8h 57m

Boston Logan Intl

Thu 2/19

4:36 pm-11:52 pm

1 stop10h 16m

$322

OntarioHartford

ONT - BDL

ONTBDL

Ontario

Mon 2/16

6:43 pm-8:14 pm

1 stop22h 31m

Hartford Bradley Intl

Mon 2/23

7:00 am-5:48 pm

2 stops13h 48m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 60 results
1
2
3
...
6

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.
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

What is the cheapest month to book a flight from Ontario to Massachusetts?

Currently, March is the cheapest month in which you can book a flight from Ontario to Massachusetts (average of $124). 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.

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 January 29, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
JetBlue
7.2
Good
2,892 reviews
Southwest
8.0
Very good
4,267 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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.

  • What airport do you fly from for flights from Ontario to Massachusetts?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Massachusetts. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Massachusetts?

    Departing from Ontario to Massachusetts will take you 7h 50m. The distance between Ontario and Massachusetts is about 2559 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Ontario to Massachusetts?

    While some choose either Ontario - Hartford Bradley Intl or Ontario - Albany Intl, Ontario - Boston Logan Intl is the most popular route from Ontario to Massachusetts.

  • Can I find deals for flights from Ontario to Massachusetts that include hotel bookings?

    Yes. In addition to deals on Ontario to Massachusetts flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Massachusetts?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Massachusetts.

  • Can I find deals for business class flights from Ontario to Massachusetts?

    Yes. Cheapflights offers flight deals from Ontario to Massachusetts by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Massachusetts?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Massachusetts (average of $124). 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.

See more FAQs

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 for Ontario to Massachusetts

See prices for flight routes from nearby airports that may be better suited for you.
San Francisco to John F Kennedy Intl flights
Los Angeles to John F Kennedy Intl flights
San Francisco to Newark flights
Los Angeles to Seattle flights
San Francisco to LaGuardia flights
San Francisco to Las Vegas flights
Los Angeles to Honolulu flights
San Francisco to Los Angeles flights
San Jose to Los Angeles flights
San Francisco to Ontario flights
Los Angeles to Newark flights
San Francisco to Santa Ana flights
Los Angeles to San Francisco flights
Los Angeles to LaGuardia flights
Los Angeles to Orlando flights
Ontario to San Francisco flights
Ontario to Seattle flights
San Francisco to Honolulu flights
Los Angeles to Las Vegas flights
Los Angeles to San Jose flights
Los Angeles to Miami flights
Santa Ana to San Francisco flights
Los Angeles to Hobby flights
San Francisco to Dallas/Fort Worth flights
San Francisco to Seattle flights
Los Angeles to O'Hare Intl flights
San Francisco to Sky Harbor Intl flights
Burbank to Las Vegas flights
San Francisco to Burbank flights
Santa Ana to Las Vegas flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Fort Lauderdale flights
Los Angeles to Denver flights
Los Angeles to Boston flights
Los Angeles to George Bush Intcntl flights
Los Angeles to Sky Harbor Intl flights
San Jose to Seattle flights
Los Angeles to New Orleans flights
Los Angeles to Reagan-National flights
San Francisco to O'Hare Intl flights
Burbank to San Francisco flights
San Francisco to Miami flights
Oakland to Honolulu flights
San Diego to Seattle flights
Los Angeles to Kahului flights
San Jose to Las Vegas flights
San Francisco to Kahului flights
San Francisco to Boston flights
Los Angeles to Atlanta flights
San Francisco to Orlando flights

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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$155Average$319FlexibilityNo cancel feeOn-time62%
DeltaCheapest$178Average$323FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$266Average$418FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$278Average$366FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$298Average$414FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$311Average$445FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.