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$99+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BOS
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 November 26, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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.
Mon 12/86:00 amONT - BOS
1 stop8h 43mUnited Airlines
Thu 12/113:32 pmBOS - ONT
1 stop9h 17mUnited Airlines
Deal found 11/24$271
This American Airlines deal was found by Cheapflights users on 11/25. 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.
Tue 12/910:47 amONT - BOS
2 stops9h 57mAmerican Airlines
Fri 12/128:00 amBOS - ONT
2 stops11h 02mAmerican Airlines
Deal found 11/25$281
This Delta deal was found by Cheapflights users on 11/25. 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.
Wed 12/1012:12 pmONT - BOS
1 stop8h 12mDelta
Fri 12/126:46 pmBOS - ONT
1 stop8h 12mDelta
Deal found 11/25$297
This Alaska Airlines deal was found by Cheapflights users on 11/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:05 pmONT - BOS
1 stop9h 05mAlaska Airlines
Tue 1/65:12 pmBOS - ONT
1 stop9h 47mAlaska Airlines
Deal found 11/24$309
This United Airlines deal was found by Cheapflights users on 11/25. 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.
Wed 12/105:05 amONT - BOS
1 stop7h 37mUnited Airlines
Sun 12/145:30 amBOS - ONT
2 stops10h 02mUnited Airlines
Deal found 11/25$310
This Delta deal was found by Cheapflights users on 11/25. 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 12/111:29 pmONT - BOS
1 stop7h 12mDelta
Tue 1/67:15 amBOS - ONT
1 stop9h 41mDelta
Deal found 11/25$317
This Delta deal was found by Cheapflights users on 11/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:15 pmONT - BOS
1 stop8h 09mDelta
Wed 1/74:25 pmBOS - ONT
1 stop9h 13mDelta
Deal found 11/24$341
This Southwest deal was found by Cheapflights users on 11/25. 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.
Thu 12/1111:15 amONT - BOS
1 stop8h 30mSouthwest
Thu 12/185:35 amBOS - ONT
2 stops11h 00mSouthwest
Deal found 11/25$342
This American Airlines deal was found by Cheapflights users on 11/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/109:59 amONT - BOS
2 stops9h 44mAmerican Airlines
Sun 12/144:52 pmBOS - ONT
1 stop8h 08mAmerican Airlines
Deal found 11/24$349
This Delta deal was found by Cheapflights users on 11/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:15 pmONT - BOS
1 stop8h 09mDelta
Tue 1/64:25 pmBOS - ONT
1 stop9h 13mDelta
Deal found 11/24$356
This Delta deal was found by Cheapflights users on 11/25. 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 12/2511:15 amONT - BDL
1 stop9h 21mDelta
Sat 1/106:00 amBDL - ONT
1 stop8h 31mDelta
Deal found 11/25$359
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:15 amONT - BDL
1 stop13h 16mMultiple Airlines
Mon 12/157:10 amBDL - ONT
2 stops17h 07mMultiple Airlines
Deal found 11/25$361

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 November 26, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$248
(Cheapflightsfares)

One-way from

$99
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$387
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
High demand for flights, 2% potential price rise
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 November 2025
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 November 26, 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

Mon 2/2

6:00 am-11:54 pm

1 stop14h 54m

Boston Logan Intl

Tue 2/10

7:00 am-3:08 pm

1 stop11h 08m

$250

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 2/2

6:00 am-5:13 pm

1 stop8h 13m

Boston Logan Intl

Tue 2/10

9:30 am-5:43 pm

2 stops11h 13m

$256

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 2/11

11:53 am-11:54 pm

1 stop9h 01m

Boston Logan Intl

Wed 2/18

4:36 pm-11:52 pm

1 stop10h 16m

$271

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 2/10

11:53 am-11:54 pm

1 stop9h 01m

Boston Logan Intl

Fri 2/20

4:36 pm-11:52 pm

1 stop10h 16m

$271

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 2/10

11:53 am-11:54 pm

1 stop9h 01m

Boston Logan Intl

Wed 2/18

7:00 am-3:08 pm

1 stop11h 08m

$271

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 1/13

1:24 pm-11:46 pm

1 stop7h 22m

Boston Logan Intl

Fri 1/16

3:25 pm-9:58 pm

1 stop9h 33m

$285

OntarioAlbany

ONT - ALB

ONTALB

Ontario

Sat 1/24

10:30 pm-4:19 pm

2 stops14h 49m

Albany Intl

Tue 1/27

4:59 pm-11:58 pm

2 stops9h 59m

$317

OntarioWorcester

ONT - ORH

ONTORH

Ontario

Sat 2/21

12:27 pm-1:15 pm

2 stops21h 48m

Worcester

Thu 2/26

1:40 pm-10:04 pm

2 stops11h 24m

$332

OntarioWorcester

ONT - ORH

ONTORH

Ontario

Sun 2/22

12:27 pm-1:15 pm

2 stops21h 48m

Worcester

Thu 2/26

1:40 pm-11:58 pm

2 stops13h 18m

$352

OntarioHartford

ONT - BDL

ONTBDL

Ontario

Sat 1/17

6:00 am-11:44 pm

2 stops14h 44m

Hartford Bradley Intl

Sat 1/24

10:07 am-8:58 pm

2 stops13h 51m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 59 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.

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 November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Massachusetts in the afternoon. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Ontario to Massachusetts?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Massachusetts. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Ontario to Massachusetts flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 26, 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
4,254 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
7.9
Good
8,003 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
9,050 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
11,038 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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
2,905 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Food

7.0

Comfort

8.0

Crew

8.6

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 8h 13m. 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 $125 on Alaska Airlines. Other airlines that offer cheap prices include Delta from $154 and American Airlines from $219 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 $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.

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Alternative routes for Ontario to Massachusetts

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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 2,558,603 searches. Data last updated November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$178Average$331FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$237Average$321FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$266Average$423FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$418FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$311Average$443FlexibilityNo cancel feeOn-time63%

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