What airlines fly to Ontario?

JetBlue, Delta and United Airlines are the top three most popular airlines that fly to Ontario from Massachusetts according to our data. JetBlue is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 10 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Massachusetts to Ontario?

Frontier, American Airlines, and Alaska Airlines are the most popular carriers operating from Massachusetts to Ontario

How long does it take to fly to Ontario?

Average flight duration from Massachusetts to Ontario depends on which airport you fly into and out of. Flying from Boston to Los Angeles is 6h 11m on average, while flying from Provincetown to Los Angeles is 8h 22m on average. Los Angeles is the most popular airport in Ontario.

When did momondo last update prices for flights from Massachusetts to Ontario Airport?

Prices for flights from Massachusetts to Ontario Airport were last updated today.

How many operators does momondo search for flights from Massachusetts to Ontario Airport?

There are 5 operators available for flights from Massachusetts to Ontario Airport as of October 2025.

How old do you have to be to fly from Massachusetts to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$113 Cheap Flights from Massachusetts to Ontario in 2025/26

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Find the cheapest flights from Massachusetts to Los Angeles

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Cheap round-trip flights

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12:25 pm - 6:36 pmBOS-ONT

9h 11m1 stop

1:33 pm - 11:39 pmONT-BOS

7h 06m1 stop

$257United Airlines

Find Deal

Tue, Nov 4 - Tue, Nov 11

9:45 am - 6:20 pmBOS-ONT

11h 35m2 stops

10:34 pm - 10:29 amONT-BOS

8h 55m1 stop

$262American Airlines

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Tue, Nov 4 - Tue, Nov 11

5:30 am - 10:35 amBOS-ONT

8h 05m1 stop

10:30 am - 10:15 pmONT-BOS

8h 45m1 stop

$267Southwest

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Mon, Dec 8 - Wed, Dec 10

5:00 pm - 10:05 pmBOS-ONT

8h 05m1 stop

11:15 am - 10:45 pmONT-BOS

8h 30m1 stop

$275Southwest

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Fri, Dec 5 - Tue, Dec 9

7:00 am - 3:08 pmBOS-ONT

11h 08m1 stop

11:53 am - 11:59 pmONT-BOS

9h 06m1 stop

$277Alaska Airlines

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Wed, Jan 14 - Thu, Jan 22

7:00 am - 3:08 pmBOS-ONT

11h 08m1 stop

11:53 am - 11:59 pmONT-BOS

9h 06m1 stop

$284Alaska Airlines

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Wed, Jan 14 - Sat, Jan 24

6:15 am - 12:16 pmBOS-ONT

9h 01m1 stop

6:00 am - 4:12 pmONT-BOS

7h 12m1 stop

$297Delta

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Fri, Oct 31 - Sat, Nov 8

12:47 pm - 7:39 pmALB-ONT

9h 52m1 stop

10:25 pm - 11:52 amONT-ALB

10h 27m1 stop

$307Delta

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Wed, Dec 10 - Wed, Dec 17

8:00 am - 9:04 pmBDL-ONT

16h 04m1 stop

6:30 am - 11:38 pmONT-BDL

14h 08m2 stops

$307Multiple Airlines

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Tue, Dec 9 - Thu, Dec 11

6:00 am - 8:42 pmBDL-ONT

17h 42m2 stops

10:05 am - 10:31 pmONT-BDL

9h 26m1 stop

$313Multiple Airlines

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Wed, Nov 5 - Thu, Nov 13

Southwest flights from Massachusetts to Ontario

Our best Southwest deals on Massachusetts to Ontario flight tickets

Southwest

Dec 8

BOS5:30 amBoston Logan Intl

8h 05m

1 stop

ONT10:35 amOntario

Dec 10

ONT10:30 amOntario

8h 45m

1 stop

BOS10:15 pmBoston Logan Intl

$267

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Southwest

Dec 5

BOS5:00 pmBoston Logan Intl

8h 05m

1 stop

ONT10:05 pmOntario

Dec 9

ONT11:15 amOntario

8h 30m

1 stop

BOS10:45 pmBoston Logan Intl

$275

Find similar

Southwest

Dec 5

BOS5:30 amBoston Logan Intl

8h 05m

1 stop

ONT10:35 amOntario

Dec 9

ONT8:30 amOntario

9h 35m

2 stops

BOS9:05 pmBoston Logan Intl

$280

Find similar

American Airlines flights from Massachusetts to Ontario

Our best American Airlines deals on Massachusetts to Ontario flight tickets

American Airlines

Nov 4

BOS9:45 amBoston Logan Intl

11h 35m

2 stops

ONT6:20 pmOntario

Nov 11

ONT10:34 pmOntario

8h 55m

1 stop

BOS10:29 amBoston Logan Intl

$262

Find similar

American Airlines

Oct 30

BOS6:00 amBoston Logan Intl

9h 01m

1 stop

ONT12:01 pmOntario

Nov 2

ONT10:34 pmOntario

9h 21m

1 stop

BOS10:55 amBoston Logan Intl

$285

Find similar

American Airlines

Oct 30

BOS6:00 amBoston Logan Intl

9h 01m

1 stop

ONT12:01 pmOntario

Nov 2

ONT10:34 pmOntario

9h 21m

1 stop

BOS10:55 amBoston Logan Intl

$290

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 11/4

12:25 pm-6:36 pm

1 stop9h 11m

Ontario

Tue 11/11

1:33 pm-11:39 pm

1 stop7h 06m

$257

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 11/4

9:45 am-6:20 pm

2 stops11h 35m

Ontario

Tue 11/11

10:34 pm-10:29 am

1 stop8h 55m

$262

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 12/8

5:30 am-10:35 am

1 stop8h 05m

Ontario

Wed 12/10

10:30 am-10:15 pm

1 stop8h 45m

$267

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 12/5

5:00 pm-10:05 pm

1 stop8h 05m

Ontario

Tue 12/9

11:15 am-10:45 pm

1 stop8h 30m

$275

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 1/14

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Thu 1/22

11:53 am-11:59 pm

1 stop9h 06m

$277

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 1/14

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Sat 1/24

11:53 am-11:59 pm

1 stop9h 06m

$284

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 10/31

6:15 am-12:16 pm

1 stop9h 01m

Ontario

Sat 11/8

6:00 am-4:12 pm

1 stop7h 12m

$297

AlbanyOntario

ALB - ONT

ALBONT

Albany Intl

Wed 12/10

12:47 pm-7:39 pm

1 stop9h 52m

Ontario

Wed 12/17

10:25 pm-11:52 am

1 stop10h 27m

$307

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Tue 12/9

8:00 am-9:04 pm

1 stop16h 04m

Ontario

Thu 12/11

6:30 am-11:38 pm

2 stops14h 08m

$307

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Wed 11/5

6:00 am-8:42 pm

2 stops17h 42m

Ontario

Thu 11/13

10:05 am-10:31 pm

1 stop9h 26m

$313

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Massachusetts to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, May is the cheapest month to fly from Massachusetts to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $346. If you aren’t able to travel during the month of May, then book flights to Ontario from Massachusetts during January instead. Flights to Ontario in January, while not as cheap as those in May, still average around $353.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $401. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Massachusetts to Ontario for around $569.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Massachusetts to Ontario when you can find flight prices for as low as $428. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $552 on average. Flights to Ontario from Massachusetts in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Massachusetts when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $407 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Massachusetts for as low as $296 on momondo.

Cheap Massachusetts to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Massachusetts to Ontario

Direct flights	None

There are no direct flights from Massachusetts to Ontario. There are no popular flight routes from Massachusetts to Ontario.

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When did momondo last update prices for flights from Massachusetts to Ontario Airport?
Prices for flights from Massachusetts to Ontario Airport were last updated today.
How many operators does momondo search for flights from Massachusetts to Ontario Airport?
There are 5 operators available for flights from Massachusetts to Ontario Airport as of October 2025.
How old do you have to be to fly from Massachusetts to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Massachusetts to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Massachusetts to Ontario

Compare and see reviews for airlines that fly from Massachusetts to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $198	Free Cancellation	Rating 7.9 7,968 reviews	Search Delta flights
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 8,965 reviews	Search United Airlines flights
JetBlue	PriceFrom $270	Free Cancellation	Rating 7.2 2,909 reviews	Search JetBlue flights
American Airlines	PriceFrom $287	Free Cancellation	Rating 7.2 11,041 reviews	Search American Airlines flights
Southwest	PriceFrom $288	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Massachusetts to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Massachusetts to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from Massachusetts to Ontario with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ontario from Massachusetts which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Massachusetts to Ontario?

momondo helps you find the best flight between Massachusetts and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Massachusetts to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Massachusetts are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.