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Ontario

$90+ Cheap flights from Massachusetts to Ontario (ONT)

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Massachusetts to Ontario

Keep the following information in mind while searching for Massachusetts to Ontario flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$271
(JetBlue Airways)

One-way from

$90
(Trip.com)

Popular in

June

Cheapest in

September

Average price

$372
Provider with most accurate pricing for Boston Logan Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Los Angeles flights.
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From Massachusetts to Ontario
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One-way flight from Massachusetts to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($48 potential increase over avg. RT price).
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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 February 2025
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Find flight deals from Massachusetts to Ontario

Cheapest flights from Massachusetts to Ontario
Explore the most affordable flight options available from Massachusetts to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This JetBlue deal was found by Cheapflights users on 2/20. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/412:15 pmBOS - ONT
1 stop12h 07mJetBlue
Thu 5/810:40 pmONT - BOS
1 stop8h 09mJetBlue
Deal found 2/20$271
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 3/156:24 pmBOS - ONT
1 stop19h 38mAlaska Airlines
Wed 3/196:00 amONT - BOS
1 stop22h 52mAlaska Airlines
Deal found 2/20$272
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 3/224:25 pmBOS - ONT
1 stop8h 22mDelta
Wed 3/2611:42 amONT - BOS
1 stop9h 13mDelta
Deal found 2/20$300
This Southwest deal was found by Cheapflights users on 2/20. 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 4/95:00 amBOS - ONT
1 stop7h 45mSouthwest
Sun 4/139:30 pmONT - BOS
1 stop14h 05mSouthwest
Deal found 2/20$328
This American Airlines deal was found by Cheapflights users on 2/20. 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 8/136:28 pmBOS - ONT
1 stop8h 01mAmerican Airlines
Wed 8/2710:28 amONT - BOS
1 stop9h 47mAmerican Airlines
Deal found 2/20$329
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/181:53 pmBDL - ONT
1 stop10h 00mAmerican Airlines
Tue 3/2511:59 pmONT - BDL
1 stop8h 32mAmerican Airlines
Deal found 2/20$337
This Delta deal was found by Cheapflights users on 2/20. 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.
Sat 4/2611:47 amALB - ONT
1 stop10h 41mDelta
Sat 5/312:10 pmONT - ALB
1 stop8h 30mDelta
Deal found 2/20$347
This Delta deal was found by Cheapflights users on 2/19. 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.
Sat 3/155:24 pmBDL - ONT
1 stop8h 19mDelta
Tue 3/1812:46 pmONT - BDL
1 stop8h 25mDelta
Deal found 2/19$347
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 4/2611:40 amALB - ONT
2 stops13h 18mAmerican Airlines
Sat 5/310:54 amONT - ALB
2 stops10h 46mAmerican Airlines
Deal found 2/20$357
This United Airlines deal was found by Cheapflights users on 2/20. 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 7/16:00 amBOS - ONT
1 stop9h 22mUnited Airlines
Sun 7/66:32 pmONT - BOS
1 stop8h 28mUnited Airlines
Deal found 2/20$378
This Southwest deal was found by Cheapflights users on 2/20. 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 6/511:25 amBDL - ONT
1 stop9h 15mSouthwest
Sun 6/89:20 pmONT - BDL
1 stop7h 45mSouthwest
Deal found 2/20$417
This United Airlines deal was found by Cheapflights users on 2/19. 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 3/57:16 amBDL - ONT
2 stops16h 24mUnited Airlines
Wed 3/125:05 amONT - BDL
1 stop7h 45mUnited Airlines
Deal found 2/19$443

Find flights from Massachusetts to Ontario within your budget

Customize your flight search to find flights from Massachusetts to Ontario 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 February 20, 2025.

Fly from

Massachusetts

Fly to

Ontario

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sun 5/4

12:15 pm-9:22 pm

1 stop12h 07m

Ontario

Thu 5/8

10:40 pm-9:49 am

1 stop8h 09m

$271

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 3/15

6:24 pm-11:02 am

1 stop19h 38m

Ontario

Wed 3/19

6:00 am-7:52 am

1 stop22h 52m

$272

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 3/22

4:25 pm-9:47 pm

1 stop8h 22m

Ontario

Wed 3/26

11:42 am-11:55 pm

1 stop9h 13m

$300

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 4/9

5:00 am-9:45 am

1 stop7h 45m

Ontario

Sun 4/13

9:30 pm-2:35 pm

1 stop14h 05m

$328

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Tue 3/18

1:53 pm-8:53 pm

1 stop10h 00m

Ontario

Tue 3/25

11:59 pm-11:31 am

1 stop8h 32m

$337

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 3/11

2:09 pm-10:27 pm

1 stop11h 18m

Ontario

Sat 3/15

6:10 am-11:54 pm

1 stop14h 44m

$345

AlbanyOntario

ALB - ONT

ALBONT

Albany Intl

Sat 4/26

11:47 am-7:28 pm

1 stop10h 41m

Ontario

Sat 5/3

12:10 pm-11:40 pm

1 stop8h 30m

$347

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Sat 3/15

5:24 pm-10:43 pm

1 stop8h 19m

Ontario

Tue 3/18

12:46 pm-12:11 am

1 stop8h 25m

$347

AlbanyOntario

ALB - ONT

ALBONT

Albany Intl

Sat 4/26

11:40 am-9:58 pm

2 stops13h 18m

Ontario

Sat 5/3

10:54 am-12:40 am

2 stops10h 46m

$357

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 4/1

10:48 am-8:42 pm

2 stops12h 54m

Ontario

Tue 4/8

5:00 am-5:22 pm

2 stops9h 22m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 30 results
1
2
3

Best time to book a flight from Massachusetts to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Massachusetts 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.

Travel insights for flights from Massachusetts to Ontario

Get recent, data-driven insights about flights from Massachusetts to Ontario including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Massachusetts to Ontario (average of $246). Flying from Massachusetts to Ontario in March is currently the most expensive (average of $315). 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 MA to ONT?

Find hourly flight availability from Massachusetts to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

When flying from Massachusetts to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated February 20, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Massachusetts to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Overall

8.1

Comfort

8.1

Food

7.1

Crew

8.7

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Ontario. 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 into for flights to Ontario from Massachusetts?

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

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $90. Users have also found prices from $136 and $137 on JetBlue and Alaska Airlines, respectively.

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

    When deciding which route to take from Massachusetts to Ontario consider Boston Logan Intl - Ontario, Hartford Bradley Intl - Ontario or Albany Intl - Ontario as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts to Ontario 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 Massachusetts to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Massachusetts to Ontario (average of $246). Flying from Massachusetts to Ontario in March is currently the most expensive (average of $315). 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 Massachusetts to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Massachusetts to Ontario

Discover the top 6 airlines that operate flights from Massachusetts to Ontario. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$159Average$282FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$176Average$325FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$288Average$484FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$294Average$485FlexibilityNo cancel feeOn-time69%
DeltaCheapest$295Average$457FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$296Average$467FlexibilityNo cancel feeOn-time71%
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