Massachusetts

$97+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
Jan 27 — Feb 31
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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 December 28, 2025.

This American Airlines deal was found by Cheapflights users on 12/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:20 amONT - BOS
1 stop7h 10mAmerican Airlines
Sun 1/116:00 amBOS - ONT
1 stop9h 38mAmerican Airlines
Deal found 12/26$472
This Southwest deal was found by Cheapflights users on 12/26. 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.
Sun 12/285:10 amONT - BOS
2 stops11h 10mSouthwest
Sun 1/1112:50 pmBOS - ONT
2 stops10h 40mSouthwest
Deal found 12/26$572
This Delta deal was found by Cheapflights users on 12/26. 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.
Mon 12/291:15 pmONT - BOS
1 stop8h 09mDelta
Tue 1/67:15 amBOS - ONT
1 stop9h 41mDelta
Deal found 12/26$597
This Southwest deal was found by Cheapflights users on 12/26. 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 12/295:00 amONT - BOS
1 stop9h 00mSouthwest
Mon 1/512:05 pmBOS - ONT
2 stops10h 35mSouthwest
Deal found 12/26$602
This United Airlines deal was found by Cheapflights users on 12/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:59 pmONT - BOS
1 stop9h 54mUnited Airlines
Sat 1/37:15 amBOS - ONT
1 stop8h 23mUnited Airlines
Deal found 12/25$702
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Mon 12/2911:59 pmONT - BOS
2 stops12h 36mUnited Airlines
Tue 1/612:08 pmBOS - ONT
2 stops11h 50mUnited Airlines
Deal found 12/26$707
This Alaska Airlines deal was found by Cheapflights users on 12/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:36 pmONT - BOS
1 stop12h 12mAlaska Airlines
Wed 1/77:00 amBOS - ONT
1 stop11h 08mAlaska Airlines
Deal found 12/26$712
This Alaska Airlines deal was found by Cheapflights users on 12/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:00 amONT - BOS
1 stop10h 23mAlaska Airlines
Wed 3/47:00 amBOS - ONT
1 stop11h 08mAlaska Airlines
Deal found 12/26$714
This Alaska Airlines deal was found by Cheapflights users on 12/25. 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.
Mon 12/297:19 pmONT - BOS
1 stop9h 29mAlaska Airlines
Mon 1/55:12 pmBOS - ONT
1 stop9h 47mAlaska Airlines
Deal found 12/25$717
This Alaska Airlines deal was found by Cheapflights users on 12/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/267:19 pmONT - BOS
1 stop9h 29mAlaska Airlines
Mon 1/55:12 pmBOS - ONT
1 stop9h 47mAlaska Airlines
Deal found 12/26$721
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Mon 12/291:40 pmONT - BDL
1 stop7h 17mUnited Airlines
Fri 1/25:04 pmBDL - ONT
1 stop8h 21mUnited Airlines
Deal found 12/26$977
This United Airlines deal was found by Cheapflights users on 12/26. 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.
Sat 12/276:39 pmONT - BDL
2 stops12h 57mUnited Airlines
Sat 1/35:04 pmBDL - ONT
1 stop8h 21mUnited Airlines
Deal found 12/26$982

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 December 28, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$237
(United Airlines)

One-way from

$97
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$457
Provider with most accurate pricing for Los Angeles-Boston Logan Intl flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Boston Logan Intl flights.
From Ontario to Massachusetts
One-way flight from Ontario to Massachusetts
Highest demand for flights based on searches. 10% potential increase in price ($46 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 28, 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

Sat 1/24

5:05 am-3:37 pm

1 stop7h 32m

Boston Logan Intl

Sat 1/31

10:30 am-8:58 pm

2 stops13h 28m

$242

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 1/31

11:53 am-11:54 pm

1 stop9h 01m

Boston Logan Intl

Wed 2/4

7:00 am-3:08 pm

1 stop11h 08m

$258

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 2/25

4:02 pm-6:54 am

1 stop11h 52m

Boston Logan Intl

Thu 3/5

4:36 pm-11:52 pm

1 stop10h 16m

$258

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 4/29

11:53 am-11:59 pm

1 stop9h 06m

Boston Logan Intl

Sat 5/9

12:45 pm-6:15 pm

1 stop8h 30m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 2/26

5:00 pm-6:00 am

1 stop10h 00m

Boston Logan Intl

Mon 3/2

6:37 pm-11:49 pm

1 stop8h 12m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 3/31

5:09 pm-6:10 am

1 stop10h 01m

Boston Logan Intl

Tue 4/7

5:35 am-11:40 am

1 stop9h 05m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 1/28

11:53 am-11:54 pm

1 stop9h 01m

Boston Logan Intl

Thu 2/5

7:00 am-3:08 pm

1 stop11h 08m

$298

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 4/20

6:49 pm-6:21 am

1 stop8h 32m

Boston Logan Intl

Tue 4/28

3:05 pm-8:36 pm

1 stop8h 31m

$308

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 5/1

11:25 pm-10:38 am

1 stop8h 13m

Boston Logan Intl

Thu 5/7

2:55 pm-10:09 pm

1 stop10h 14m

$327

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 1/12

1:24 pm-11:46 pm

1 stop7h 22m

Boston Logan Intl

Fri 1/16

3:25 pm-9:58 pm

1 stop9h 33m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 55 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 $124). Flying from Ontario to Massachusetts in May 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 December 28, 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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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.

Crew

8.6

Food

7.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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 32m. 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?

  • 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 $124). Flying from Ontario to Massachusetts in May 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

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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.

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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$178Average$327FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$223Average$324FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$266Average$418FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$278Average$366FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$301Average$414FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$311Average$441FlexibilityNo cancel feeOn-time63%

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