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$114+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
oct. 15 — oct. 221
mié. 10/15
mié. 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Massachusetts

Keep the following information in mind while searching for Ontario to Massachusetts flight deals. Data was last updated septiembre 15, 2025.

Round-trip from

$252
(Frontier)

One-way from

$114
(FlyFar)

Popular in

December

Cheapest in

January

Average price

$351
From Ontario to Massachusetts
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One-way flight from Ontario to Massachusetts
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 septiembre 15, 2025.

This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/1312:05 pmONT - BOS
2 stops16h 47mFrontier
lun. 11/1712:20 pmBOS - ONT
2 stops14h 30mFrontier
Deal found 9/13$252
This American Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 10/2112:47 pmONT - BOS
1 stop7h 40mAmerican Airlines
mar. 10/285:30 amBOS - ONT
1 stop9h 23mAmerican Airlines
Deal found 9/14$257
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/314:05 pmONT - BOS
2 stops15h 43mFrontier
lun. 11/312:20 pmBOS - ONT
2 stops14h 30mFrontier
Deal found 9/14$263
This CheapOair deal was found by Cheapflights users on 9/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/2612:28 pmONT - BOS
2 stops42h 30mFrontier
sáb. 10/48:38 amBOS - ONT
2 stops36h 57mFrontier
Deal found 9/14$265
This American Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 10/2112:47 pmONT - BOS
1 stop7h 40mAmerican Airlines
sáb. 10/255:30 amBOS - ONT
1 stop9h 27mAmerican Airlines
Deal found 9/14$267
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1511:59 amONT - BOS
1 stop9h 21mHawaiian Airlines
mar. 11/187:00 amBOS - ONT
1 stop11h 17mHawaiian Airlines
Deal found 9/15$276
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/186:36 pmONT - BOS
1 stop8h 31mUnited Airlines
sáb. 10/256:00 amBOS - ONT
1 stop9h 13mUnited Airlines
Deal found 9/13$277
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/1411:59 amONT - BOS
1 stop9h 21mHawaiian Airlines
mar. 11/187:00 amBOS - ONT
1 stop11h 17mHawaiian Airlines
Deal found 9/14$283
This Alaska Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/1411:59 amONT - BOS
1 stop9h 21mAlaska Airlines
mié. 11/197:00 amBOS - ONT
1 stop11h 17mAlaska Airlines
Deal found 9/13$284
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2811:36 amONT - ALB
1 stop9h 21mDelta
mar. 11/116:00 amALB - ONT
2 stops14h 09mDelta
Deal found 9/15$312
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/288:15 amONT - ALB
2 stops10h 42mAmerican Airlines
mar. 11/117:01 amALB - ONT
2 stops12h 02mAmerican Airlines
Deal found 9/15$317
This Southwest deal was found by Cheapflights users on 9/15. 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.
mar. 10/2812:00 pmONT - ALB
1 stop7h 25mSouthwest
mar. 11/115:10 amALB - ONT
1 stop8h 25mSouthwest
Deal found 9/15$329

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 septiembre 15, 2025.
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

sáb. 10/18

5:05 am-5:51 pm

2 stops9h 46m

Boston Logan Intl

sáb. 10/25

6:00 am-12:13 pm

1 stop9h 13m

$282

OntarioBoston

ONT - BOS

ONTBOS

Ontario

vie. 11/14

11:59 am-12:20 am

1 stop9h 21m

Boston Logan Intl

mié. 11/19

7:00 am-3:17 pm

1 stop11h 17m

$284

OntarioBoston

ONT - BOS

ONTBOS

Ontario

sáb. 11/1

11:59 am-12:20 am

1 stop9h 21m

Boston Logan Intl

mié. 11/5

7:00 am-3:17 pm

1 stop11h 17m

$291

OntarioBoston

ONT - BOS

ONTBOS

Ontario

mié. 1/21

11:30 am-11:59 pm

1 stop9h 29m

Boston Logan Intl

mar. 1/27

7:00 am-3:12 pm

1 stop11h 12m

$296

OntarioBoston

ONT - BOS

ONTBOS

Ontario

vie. 1/16

5:05 pm-6:13 am

1 stop10h 08m

Boston Logan Intl

sáb. 1/24

5:40 am-11:38 am

1 stop8h 58m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

vie. 1/16

5:05 pm-6:13 am

1 stop10h 08m

Boston Logan Intl

mié. 1/28

5:40 am-11:38 am

1 stop8h 58m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

vie. 1/16

5:05 pm-6:13 am

1 stop10h 08m

Boston Logan Intl

mar. 1/27

5:40 am-11:38 am

1 stop8h 58m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

mié. 11/12

1:20 pm-11:44 pm

1 stop7h 24m

Boston Logan Intl

mar. 11/18

6:47 pm-11:52 pm

1 stop8h 05m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

mié. 1/21

6:00 am-4:44 pm

1 stop7h 44m

Boston Logan Intl

lun. 1/26

6:25 pm-11:52 pm

1 stop8h 27m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

vie. 11/7

11:36 am-1:13 am

1 stop10h 37m

Boston Logan Intl

dom. 11/9

6:10 am-12:18 pm

1 stop9h 08m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from Ontario to Massachusetts (average of $218). Flying from Ontario to Massachusetts in July is currently the most expensive (average of $311). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to MA?

Find hourly flight availability from Ontario to Massachusetts. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Massachusetts as you normally would.

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 septiembre 15, 2025.
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
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,954 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
JetBlue
7.2
Good
2,912 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 9h 21m. The distance between Ontario and Massachusetts is about 2559 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 $129 on United Airlines. Other airlines that offer cheap prices include Southwest from $134 and Delta from $149 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, January is the cheapest month in which you can book a flight from Ontario to Massachusetts (average of $218). Flying from Ontario to Massachusetts in July is currently the most expensive (average of $311). 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

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Alternative routes for Ontario to Massachusetts

See prices for flight routes from nearby airports that may be better suited for you.
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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 septiembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$131Average$366FlexibilityNo cancel feeOn-time75%
DeltaCheapest$178Average$338FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$223Average$324FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$271Average$424FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$420FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$308Average$434FlexibilityNo cancel feeOn-time63%

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