HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Massachusetts

$98+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
Apr 27 — May 41
Mon 4/27
Mon 5/4
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 March 28, 2026.

This Southwest deal was found by Cheapflights users on 3/24. 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 5/121:55 pm
ONT
-
BOS
1 stop7h 10m
Southwest
Wed 5/279:15 am
BOS
-
ONT
1 stop10h 05m
Southwest
Deal found 3/24$205
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:20 pm
ONT
-
BOS
1 stop7h 30m
Southwest
Tue 5/1212:55 pm
BOS
-
ONT
1 stop10h 40m
Southwest
Deal found 3/25$224
This Southwest deal was found by Cheapflights users on 3/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:55 pm
ONT
-
BOS
1 stop7h 20m
Southwest
Mon 4/275:05 pm
BOS
-
ONT
1 stop8h 35m
Southwest
Deal found 3/26$243
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:19 pm
ONT
-
BOS
1 stop9h 05m
American Airlines
Tue 5/511:51 am
BOS
-
ONT
1 stop11h 36m
American Airlines
Deal found 3/25$244
This Southwest deal was found by Cheapflights users on 3/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:55 pm
ONT
-
BOS
1 stop7h 10m
Southwest
Fri 5/12:30 pm
BOS
-
ONT
2 stops11h 35m
Southwest
Deal found 3/25$249
This Southwest deal was found by Cheapflights users on 3/23. 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 5/811:35 am
ONT
-
BOS
2 stops9h 20m
Southwest
Tue 5/127:20 am
BOS
-
ONT
1 stop8h 55m
Southwest
Deal found 3/23$250
This Southwest deal was found by Cheapflights users on 3/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:55 pm
ONT
-
ALB
1 stop7h 05m
Southwest
Tue 6/29:10 am
ALB
-
ONT
1 stop10h 10m
Southwest
Deal found 3/26$257
This Southwest deal was found by Cheapflights users on 3/24. 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 4/291:55 pm
ONT
-
BOS
1 stop7h 10m
Southwest
Sun 5/36:40 am
BOS
-
ONT
1 stop11h 30m
Southwest
Deal found 3/24$262
This Southwest deal was found by Cheapflights users on 3/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/129:55 pm
ONT
-
BOS
1 stop7h 20m
Southwest
Tue 5/197:20 am
BOS
-
ONT
1 stop8h 55m
Southwest
Deal found 3/26$267
This United Airlines deal was found by Cheapflights users on 3/24. 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 4/186:49 pm
ONT
-
ALB
2 stops12h 24m
United Airlines
Tue 5/124:55 pm
ALB
-
ONT
1 stop8h 40m
United Airlines
Deal found 3/24$288
This United Airlines deal was found by Cheapflights users on 3/23. 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 5/61:40 pm
ONT
-
ALB
1 stop6h 50m
United Airlines
Sat 5/98:05 am
ALB
-
ONT
1 stop7h 33m
United Airlines
Deal found 3/23$307
This Delta deal was found by Cheapflights users on 3/23. 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 4/1612:49 pm
ONT
-
ALB
1 stop8h 10m
Delta
Sat 4/251:10 pm
ALB
-
ONT
1 stop10h 50m
Delta
Deal found 3/23$311

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 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$205
(Southwest)

One-way from

$98
(United Airlines)

Popular in

July

Cheapest in

January

Average price

$388
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. 10% potential increase in price ($43 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 March 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 March 28, 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

Price

Cheapest round-trip

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 5/5

6:59 pm-8:23 am

1 stop10h 24m

Boston Logan Intl

Sat 5/9

7:09 am-12:38 pm

1 stop8h 29m

$329

OntarioAlbany

ONT - ALB

ONTALB

Ontario

Sat 4/18

6:49 pm-10:13 am

2 stops12h 24m

Albany Intl

Fri 4/24

4:55 pm-10:31 pm

1 stop8h 36m

$340

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 4/18

5:59 pm-6:00 am

1 stop9h 01m

Boston Logan Intl

Sat 4/25

4:50 pm-10:43 pm

1 stop8h 53m

$347

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 5/4

6:59 pm-8:23 am

1 stop10h 24m

Boston Logan Intl

Wed 5/6

1:30 pm-9:58 pm

1 stop11h 28m

$348

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 6/2

6:30 pm-5:58 am

1 stop8h 28m

Boston Logan Intl

Sat 6/6

6:00 am-12:12 pm

1 stop9h 12m

$353

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 8/15

7:00 am-8:34 pm

1 stop10h 34m

Boston Logan Intl

Sat 8/22

5:45 am-11:04 am

1 stop8h 19m

$354

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 5/16

5:55 pm-6:20 am

1 stop9h 25m

Boston Logan Intl

Sat 5/23

6:10 am-12:19 pm

1 stop9h 09m

$354

OntarioAlbany

ONT - ALB

ONTALB

Ontario

Sat 4/18

7:05 am-7:13 pm

2 stops9h 08m

Albany Intl

Tue 5/12

1:05 pm-6:36 pm

1 stop8h 31m

$379

OntarioAlbany

ONT - ALB

ONTALB

Ontario

Sat 8/22

7:00 am-5:30 pm

1 stop7h 30m

Albany Intl

Sun 8/30

6:00 am-4:14 pm

2 stops13h 14m

$402
Quickest round-trip

OntarioAlbany

ONT - ALB

ONTALB

Ontario

Tue 5/5

7:00 am-5:51 pm

1 stop7h 51m

Albany Intl

Wed 5/6

8:05 am-12:38 pm

1 stop7h 33m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 59 resultsSorted by cheapest first
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, 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.

How much does it cost to fly round-trip from Ontario to Massachusetts?

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 28, 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.
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

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
4,333 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

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
8,357 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

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
9,499 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

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
2,909 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

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
7.1
Good
11,520 reviews
Southwest
8.0
Very good
4,333 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Food

7.0

Overall

8.0

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. The distance between Ontario and Massachusetts is about 2474 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Ontario to Massachusetts one-way?

    One-way options have recently been found by users for as low as $93 on Alaska Airlines. Other airlines that offer cheap prices include Southwest from $128 and United Airlines from $129 one-way.

  • 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, 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.

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
San Francisco to Newark flights
Los Angeles to Honolulu flights
Los Angeles to John F Kennedy Intl flights
Los Angeles to Seattle flights
Los Angeles to Newark flights
San Francisco to LaGuardia flights
San Francisco to Las Vegas flights
Long Beach to Honolulu flights
Los Angeles to Dallas/Fort Worth flights
Ontario to San Francisco flights
San Francisco to Los Angeles flights
Ontario to Honolulu flights
San Francisco to Seattle flights
Ontario to Seattle flights
Los Angeles to San Francisco flights
Los Angeles to Miami flights
Los Angeles to LaGuardia flights
Burbank to Honolulu flights
San Francisco to Dallas/Fort Worth flights
San Francisco to Ontario flights
San Francisco to O'Hare Intl flights
Los Angeles to Las Vegas flights
Los Angeles to Orlando flights
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Los Angeles to Boston flights
Los Angeles to Fort Lauderdale flights
San Francisco to Honolulu flights
Los Angeles to Baltimore flights
San Francisco to Santa Ana flights
Los Angeles to Denver flights
Santa Ana to San Francisco flights
Burbank to Las Vegas flights
San Jose to Las Vegas flights
Los Angeles to O'Hare Intl flights
San Francisco to Boston flights
Los Angeles to Atlanta flights
Santa Ana to Las Vegas flights
San Jose to Seattle flights
San Francisco to Denver flights
Santa Ana to Seattle flights
Los Angeles to Austin flights
San Diego to Seattle flights
San Francisco to Sky Harbor Intl flights
Los Angeles to Hobby flights
Los Angeles to Nashville flights
Santa Ana to Dallas/Fort Worth flights
Los Angeles to Portland flights
Los Angeles to Sky Harbor Intl 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 March 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$155Average$319FlexibilityNo cancel feeOn-time62%
DeltaCheapest$158Average$328FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$412FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$258Average$366FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$292Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$294Average$428FlexibilityNo 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.