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

Delta, United Airlines, and Alaska Airlines are the most popular carriers operating from Massachusetts to Ontario

What airlines fly to Ontario?

JetBlue, United Airlines and American 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 9 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 08m on average, while flying from Worcester to Los Angeles is 8h 38m 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 August 2026.

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.

$114 Cheap Flights from Massachusetts to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Massachusetts to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 am - 11:43 am-

7h 58m

1:04 pm - 11:30 pm-

7h 26m

$345American Airlines

Sat, Sep 5 - Fri, Sep 11

5:01 pm - 10:35 pm-

8h 34m

1:18 pm - 11:54 pm-

7h 36m

$347United Airlines

Sat, Sep 5 - Fri, Sep 11

6:45 am - 11:43 am-

7h 58m

1:04 pm - 11:30 pm-

7h 26m

$347American Airlines

Sat, Sep 5 - Fri, Sep 11

6:00 am - 10:42 am-

7h 42m

7:05 am - 6:50 pm-

8h 45m

$351Delta

Sat, Aug 29 - Sat, Sep 5

6:00 am - 10:42 am-

7h 42m

12:00 pm - 11:58 pm-

8h 58m

$351Delta

Wed, Sep 2 - Sun, Sep 6

12:27 pm - 8:53 pm-

11h 26m

7:00 am - 5:36 pm-

7h 36m

$352United Airlines

Sat, Sep 5 - Fri, Sep 11

5:00 pm - 10:15 pm-

8h 15m

11:55 pm - 9:55 am-

7h 00m

$357Southwest

Fri, Sep 11 - Mon, Sep 14

7:59 pm - 11:16 am-

18h 17m

6:14 pm - 6:09 am-

8h 55m

$357Alaska Airlines

Fri, Sep 11 - Mon, Sep 14

6:40 pm - 10:17 am-

18h 37m

11:13 am - 11:59 pm-

9h 46m

$358Alaska Airlines

Tue, Oct 27 - Fri, Oct 30

5:50 am - 2:00 pm-

11h 10m

11:55 pm - 9:55 am-

7h 00m

$362Southwest

Fri, Sep 11 - Mon, Sep 14

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Delta flights from Massachusetts to Ontario

Our best Delta deals on Massachusetts to Ontario flight tickets

Delta

Sep 11

BDL2:05 pmHartford Bradley Intl

9h 00m

1 stop

ONT8:05 pmOntario

Sep 15

ONT12:17 pmOntario

8h 42m

1 stop

BDL11:59 pmHartford Bradley Intl

$351

Delta

Sep 5

BDL6:00 amHartford Bradley Intl

7h 42m

1 stop

ONT10:42 amOntario

Sep 12

ONT12:17 pmOntario

8h 42m

1 stop

BDL11:59 pmHartford Bradley Intl

$352

Delta

Aug 27

BOS3:14 pmBoston Logan Intl

9h 38m

1 stop

ONT9:52 pmOntario

Sep 11

ONT1:04 pmOntario

7h 49m

1 stop

BOS11:53 pmBoston Logan Intl

$357

Alaska Airlines flights from Massachusetts to Ontario

Our best Alaska Airlines deals on Massachusetts to Ontario flight tickets

Alaska Airlines

Sep 5

BOS5:42 pmBoston Logan Intl

19h 09m

1 stop

ONT9:51 amOntario

Sep 11

ONT10:47 amOntario

16h 22m

1 stop

BOS6:09 amBoston Logan Intl

$380

Alaska Airlines

Nov 12

BOS7:10 amBoston Logan Intl

11h 05m

1 stop

ONT3:15 pmOntario

Nov 12

ONT5:52 pmOntario

10h 36m

1 stop

BOS7:28 amBoston Logan Intl

$381

Alaska Airlines

Sep 10

BOS7:59 pmBoston Logan Intl

18h 17m

1 stop

ONT11:16 amOntario

Sep 14

ONT6:14 pmOntario

8h 55m

1 stop

BOS6:09 amBoston Logan Intl

$391

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/5

6:45 am-11:43 am

1 stop7h 58m

Ontario

Fri 9/11

1:04 pm-11:30 pm

1 stop7h 26m

$345

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/5

5:01 pm-10:35 pm

1 stop8h 34m

Ontario

Fri 9/11

1:18 pm-11:54 pm

1 stop7h 36m

$347

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/5

6:45 am-11:43 am

1 stop7h 58m

Ontario

Fri 9/11

1:04 pm-11:30 pm

1 stop7h 26m

$347

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Sat 8/29

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 9/5

7:05 am-6:50 pm

1 stop8h 45m

$351

HartfordOntario

BDL - ONT

BDLONT

Hartford Bradley Intl

Wed 9/2

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sun 9/6

12:00 pm-11:58 pm

1 stop8h 58m

$351

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 9/5

12:27 pm-8:53 pm

2 stops11h 26m

Ontario

Fri 9/11

7:00 am-5:36 pm

1 stop7h 36m

$352

Quickest round-trip

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 9/11

5:00 pm-10:15 pm

1 stop8h 15m

Ontario

Mon 9/14

11:55 pm-9:55 am

1 stop7h 00m

$357

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 9/11

7:59 pm-11:16 am

1 stop18h 17m

Ontario

Mon 9/14

6:14 pm-6:09 am

1 stop8h 55m

$357

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 10/27

6:40 pm-10:17 am

1 stop18h 37m

Ontario

Fri 10/30

11:13 am-11:59 pm

1 stop9h 46m

$358

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 9/11

5:50 am-2:00 pm

2 stops11h 10m

Ontario

Mon 9/14

11:55 pm-9:55 am

1 stop7h 00m

$362

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, February 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 $317. If you aren’t able to travel during the month of February, then book flights to Ontario from Massachusetts during January instead. Flights to Ontario in January, while not as cheap as those in February, still average around $366.

How far in advance should I book a flight from Massachusetts 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 $491 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 $326 on momondo.

Can stopping save me money on Massachusetts to Ontario flights?

You could potentially save up to 52% on your flight if you consider stops on a Massachusetts to Ontario flight.

Cheap Massachusetts to Ontario flight deals and tips

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

Fastest flight time	7h 20m
Direct flights	None

The fastest flight from Massachusetts to Ontario takes 7h 20m

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

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Frequently asked questions about flying 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 August 2026.
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 $233	Free Cancellation	Rating 7.8 8,492 reviews	Search Delta flights
United Airlines	PriceFrom $239	Free Cancellation	Rating 7.4 10,061 reviews	Search United Airlines flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,852 reviews	Search American Airlines flights
JetBlue	PriceFrom $298	Free Cancellation	Rating 7.1 3,023 reviews	Search JetBlue flights
Southwest	PriceFrom $307	Free Cancellation	Rating 8.0 4,220 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.

An easier way to manage your Ontario trip

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Cheap flights from Massachusetts to Los Angeles from $114

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Massachusetts to Los Angeles departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Massachusetts to Ontario

Our best Delta deals on Massachusetts to Ontario flight tickets

Alaska Airlines flights from Massachusetts to Ontario

Our best Alaska Airlines deals on Massachusetts to Ontario flight tickets

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How to get the cheapest flight ticket from Massachusetts to Ontario

What is the cheapest month to fly to Ontario?

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

Can stopping save me money on Massachusetts to Ontario flights?

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

What airlines fly to Ontario?

How long does it take to fly to Ontario?

Cheap Massachusetts to Ontario flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Massachusetts to Ontario

Best airlines flying from Massachusetts to Ontario

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

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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