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 43% 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.

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 07m on average, while flying from Provincetown to Los Angeles is 9h 04m on average. Los Angeles is the most popular airport in Ontario.

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

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Massachusetts to 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 November 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.

$100 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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7:00 am - 3:08 pmBOS-ONT

11h 08m1 stop

11:53 am - 11:54 pmONT-BOS

9h 01m1 stop

$248Alaska Airlines

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Thu, Jan 22 - Thu, Jan 29

7:00 am - 3:08 pmBOS-ONT

11h 08m1 stop

11:53 am - 11:54 pmONT-BOS

9h 01m1 stop

$250Alaska Airlines

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Tue, Jan 13 - Sat, Jan 24

4:52 pm - 10:13 pmBOS-ONT

8h 21m1 stop

12:57 pm - 11:12 pmONT-BOS

7h 15m1 stop

$251American Airlines

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Thu, Jan 8 - Wed, Jan 14

12:08 pm - 8:58 pmBOS-ONT

11h 50m2 stops

1:24 pm - 11:46 pmONT-BOS

7h 22m1 stop

$256United Airlines

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Tue, Jan 13 - Fri, Jan 16

6:00 am - 12:47 pmBOS-ONT

9h 47m2 stops

6:39 pm - 9:14 amONT-BOS

11h 35m2 stops

$261United Airlines

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Tue, Jan 13 - Fri, Jan 16

2:08 pm - 10:00 pmBOS-ONT

10h 52m2 stops

9:59 am - 8:32 pmONT-BOS

7h 33m1 stop

$276American Airlines

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Mon, Dec 8 - Fri, Dec 12

6:00 am - 5:22 pmBDL-ONT

14h 22m1 stop

6:49 pm - 11:05 pmONT-BDL

25h 16m2 stops

$323Multiple Airlines

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Thu, Dec 18 - Tue, Jan 13

8:00 am - 9:17 pmBDL-ONT

16h 17m1 stop

6:15 am - 10:59 pmONT-BDL

13h 44m2 stops

$344Multiple Airlines

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Tue, Dec 9 - Wed, Dec 10

6:00 am - 11:31 amBDL-ONT

8h 31m1 stop

12:41 pm - 11:55 pmONT-BDL

8h 14m1 stop

$345Delta

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Tue, Jan 6 - Wed, Jan 14

6:00 am - 11:31 amBDL-ONT

8h 31m1 stop

10:30 pm - 12:07 pmONT-BDL

10h 37m2 stops

$350Delta

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Tue, Jan 6 - Mon, Jan 12

Alaska Airlines flights from Massachusetts to Ontario

Our best Alaska Airlines deals on Massachusetts to Ontario flight tickets

Alaska Airlines

Jan 22

BOS7:00 amBoston Logan Intl

11h 08m

1 stop

ONT3:08 pmOntario

Jan 29

ONT11:53 amOntario

9h 01m

1 stop

BOS11:54 pmBoston Logan Intl

$248

Find similar

Alaska Airlines

Jan 13

BOS7:00 amBoston Logan Intl

11h 08m

1 stop

ONT3:08 pmOntario

Jan 24

ONT11:53 amOntario

9h 01m

1 stop

BOS11:54 pmBoston Logan Intl

$250

Find similar

Alaska Airlines

Jan 21

BOS7:00 amBoston Logan Intl

11h 08m

1 stop

ONT3:08 pmOntario

Jan 28

ONT11:53 amOntario

9h 01m

1 stop

BOS11:54 pmBoston Logan Intl

$268

Find similar

American Airlines flights from Massachusetts to Ontario

Our best American Airlines deals on Massachusetts to Ontario flight tickets

American Airlines

Jan 8

BOS4:52 pmBoston Logan Intl

8h 21m

1 stop

ONT10:13 pmOntario

Jan 14

ONT12:57 pmOntario

7h 15m

1 stop

BOS11:12 pmBoston Logan Intl

$251

Find similar

American Airlines

Dec 8

BOS2:08 pmBoston Logan Intl

10h 52m

2 stops

ONT10:00 pmOntario

Dec 12

ONT9:59 amOntario

7h 33m

1 stop

BOS8:32 pmBoston Logan Intl

$276

Find similar

American Airlines

Dec 12

BOS8:00 amBoston Logan Intl

11h 02m

2 stops

ONT4:02 pmOntario

Dec 16

ONT10:47 amOntario

9h 57m

2 stops

BOS11:44 pmBoston Logan Intl

$281

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 1/22

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Thu 1/29

11:53 am-11:54 pm

1 stop9h 01m

$248

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 1/13

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Sat 1/24

11:53 am-11:54 pm

1 stop9h 01m

$250

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 1/8

4:52 pm-10:13 pm

1 stop8h 21m

Ontario

Wed 1/14

12:57 pm-11:12 pm

1 stop7h 15m

$251

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 1/13

12:08 pm-8:58 pm

2 stops11h 50m

Ontario

Fri 1/16

1:24 pm-11:46 pm

1 stop7h 22m

$256

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 1/13

6:00 am-12:47 pm

2 stops9h 47m

Ontario

Fri 1/16

6:39 pm-9:14 am

2 stops11h 35m

$261

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 12/8

2:08 pm-10:00 pm

2 stops10h 52m

Ontario

Fri 12/12

9:59 am-8:32 pm

1 stop7h 33m

$276

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Thu 12/18

6:00 am-5:22 pm

1 stop14h 22m

Ontario

Tue 1/13

6:49 pm-11:05 pm

2 stops25h 16m

$323

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Tue 12/9

8:00 am-9:17 pm

1 stop16h 17m

Ontario

Wed 12/10

6:15 am-10:59 pm

2 stops13h 44m

$344

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Tue 1/6

6:00 am-11:31 am

1 stop8h 31m

Ontario

Wed 1/14

12:41 pm-11:55 pm

1 stop8h 14m

$345

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Tue 1/6

6:00 am-11:31 am

1 stop8h 31m

Ontario

Mon 1/12

10:30 pm-12:07 pm

2 stops10h 37m

$350

Flights are sorted by cheapest round-trip flights first.

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, January 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 $339. If you aren’t able to travel during the month of January, then book flights to Ontario from Massachusetts during May instead. Flights to Ontario in May, while not as cheap as those in January, still average around $358.

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 November 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 $188	Free Cancellation	Rating 7.9 7,997 reviews	Search Delta flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 9,036 reviews	Search United Airlines flights
JetBlue	PriceFrom $270	Free Cancellation	Rating 7.2 2,903 reviews	Search JetBlue flights
American Airlines	PriceFrom $296	Free Cancellation	Rating 7.2 11,046 reviews	Search American Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 8.0 4,252 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.