Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Massachusetts 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 Ontario to Massachusetts departing on 9/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Massachusetts

Cheap round-trip flights

Frontier Logo
12:05 pm - 7:52 amONT-BOS
16h 47m2 stops
Frontier Logo
12:20 pm - 11:50 pmBOS-ONT
14h 30m2 stops
$242Frontier
Find Deal
Thu, Nov 6 - Mon, Nov 10
Frontier Logo
10:30 am - 7:27 amONT-BOS
17h 57m2 stops
Frontier Logo
11:43 am - 11:50 pmBOS-ONT
15h 07m2 stops
$247Frontier
Find Deal
Thu, Oct 23 - Sat, Nov 1
United Airlines Logo
7:00 am - 5:15 pmONT-BOS
7h 15m1 stop
United Airlines Logo
10:40 am - 6:36 pmBOS-ONT
10h 56m1 stop
$257United Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
United Airlines Logo
7:00 am - 5:15 pmONT-BOS
7h 15m1 stop
United Airlines Logo
10:25 am - 6:36 pmBOS-ONT
11h 11m2 stops
$262United Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
American Airlines Logo
12:55 pm - 11:35 pmONT-BOS
7h 40m1 stop
American Airlines Logo
6:05 am - 12:03 pmBOS-ONT
8h 58m1 stop
$267American Airlines
Find Deal
Mon, Nov 3 - Wed, Nov 5
American Airlines Logo
10:29 pm - 11:13 amONT-BOS
9h 44m1 stop
American Airlines Logo
5:30 am - 1:43 pmBOS-ONT
11h 13m1 stop
$274American Airlines
Find Deal
Tue, Oct 21 - Sat, Oct 25
Delta Logo
1:15 pm - 11:48 pmONT-BOS
7h 33m1 stop
Delta Logo
6:52 pm - 11:52 pmBOS-ONT
8h 00m1 stop
$297Delta
Find Deal
Fri, Nov 7 - Mon, Nov 10
Delta Logo
11:36 am - 1:13 amONT-BOS
10h 37m1 stop
Delta Logo
1:45 pm - 7:19 pmBOS-ONT
8h 34m1 stop
$298Delta
Find Deal
Sat, Oct 25 - Fri, Oct 31
Southwest Logo
6:30 am - 10:15 pmONT-BOS
12h 45m1 stop
Southwest Logo
5:15 am - 1:30 pmBOS-ONT
11h 15m1 stop
$313Southwest
Find Deal
Tue, Oct 7 - Tue, Oct 28
Southwest Logo
5:55 am - 8:50 pmONT-BOS
11h 55m2 stops
Southwest Logo
6:50 am - 1:50 pmBOS-ONT
10h 00m2 stops
$327Southwest
Find Deal
Thu, Jan 22 - Wed, Jan 28

United Airlines flights from Ontario to Massachusetts

Our best United Airlines deals on Ontario to Massachusetts flight tickets
United Airlines
Oct 29
ONT7:00 amOntario
7h 15m
1 stop
BOS5:15 pmBoston Logan Intl
Nov 4
BOS10:40 amBoston Logan Intl
10h 56m
1 stop
ONT6:36 pmOntario
$257
Find similar
United Airlines
Oct 29
ONT7:00 amOntario
7h 15m
1 stop
BOS5:15 pmBoston Logan Intl
Nov 4
BOS10:25 amBoston Logan Intl
11h 11m
2 stops
ONT6:36 pmOntario
$262
Find similar
United Airlines
Oct 16
ONT6:27 pmOntario
8h 33m
1 stop
BOS6:00 amBoston Logan Intl
Oct 21
BOS12:10 pmBoston Logan Intl
11h 14m
2 stops
ONT8:24 pmOntario
$272
Find similar

Southwest flights from Ontario to Massachusetts

Our best Southwest deals on Ontario to Massachusetts flight tickets
Southwest
Oct 7
ONT6:30 amOntario
12h 45m
1 stop
BOS10:15 pmBoston Logan Intl
Oct 28
BOS5:15 amBoston Logan Intl
11h 15m
1 stop
ONT1:30 pmOntario
$313
Find similar
Southwest
Jan 22
ONT5:55 amOntario
11h 55m
2 stops
BOS8:50 pmBoston Logan Intl
Jan 28
BOS6:50 amBoston Logan Intl
10h 00m
2 stops
ONT1:50 pmOntario
$327
Find similar
Southwest
Oct 4
ONT1:30 pmOntario
6h 50m
1 stop
BOS11:20 pmBoston Logan Intl
Oct 8
BOS5:15 amBoston Logan Intl
11h 15m
1 stop
ONT1:30 pmOntario
$393
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 24, 2025.
Use the filters below to find and compare flights from Ontario to Massachusetts that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 11/6

12:05 pm-7:52 am

2 stops16h 47m

Boston Logan Intl

Mon 11/10

12:20 pm-11:50 pm

2 stops14h 30m

$242

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 10/23

10:30 am-7:27 am

2 stops17h 57m

Boston Logan Intl

Sat 11/1

11:43 am-11:50 pm

2 stops15h 07m

$247

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 10/29

7:00 am-5:15 pm

1 stop7h 15m

Boston Logan Intl

Tue 11/4

10:40 am-6:36 pm

1 stop10h 56m

$257

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 10/29

7:00 am-5:15 pm

1 stop7h 15m

Boston Logan Intl

Tue 11/4

10:25 am-6:36 pm

2 stops11h 11m

$262

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 11/3

12:55 pm-11:35 pm

1 stop7h 40m

Boston Logan Intl

Wed 11/5

6:05 am-12:03 pm

1 stop8h 58m

$267

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 10/21

10:29 pm-11:13 am

1 stop9h 44m

Boston Logan Intl

Sat 10/25

5:30 am-1:43 pm

1 stop11h 13m

$274

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 11/7

1:15 pm-11:48 pm

1 stop7h 33m

Boston Logan Intl

Mon 11/10

6:52 pm-11:52 pm

1 stop8h 00m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 10/25

11:36 am-1:13 am

1 stop10h 37m

Boston Logan Intl

Fri 10/31

1:45 pm-7:19 pm

1 stop8h 34m

$298

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 10/7

6:30 am-10:15 pm

1 stop12h 45m

Boston Logan Intl

Tue 10/28

5:15 am-1:30 pm

1 stop11h 15m

$313

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 1/22

5:55 am-8:50 pm

2 stops11h 55m

Boston Logan Intl

Wed 1/28

6:50 am-1:50 pm

2 stops10h 00m

$327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Massachusetts from

How to get the cheapest flight ticket from Ontario to Massachusetts

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

What is the cheapest month to fly to Massachusetts?

In general, August is the cheapest month to fly from Ontario to Massachusetts. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $369. If you aren’t able to travel to Massachusetts during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $377.

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

According to our data, Tuesday is the cheapest day to fly to Massachusetts from Ontario. The lowest ticket price found for a Tuesday departure recently was $402. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $602.

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

Our data shows that the cheapest Ontario to Massachusetts flights are usually those with departure times in the afternoon. Our users have found flights to Massachusetts in the afternoon for as low as $405. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $463 on average. Flights to Massachusetts from Ontario in the morning 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 Massachusetts?

You are more likely to see cheaper flights to Massachusetts from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Massachusetts for around $412 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Massachusetts from Ontario for as low as $357 on momondo.

Can stopping save me money on Ontario to Massachusetts flights?

You could potentially save up to 36% on your flight if you consider stops on a Ontario to Massachusetts flight.

Cheap Ontario to Massachusetts flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to Massachusetts. There are no popular flight routes from Ontario to Massachusetts.
Search flight deals

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

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

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

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

    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 Ontario Airport to Massachusetts.

  • What documentation or ID do you need to fly to Massachusetts?

    The travel and health documents required for your trip to Massachusetts can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Massachusetts. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Massachusetts

Compare and see reviews for airlines that fly from Ontario to Massachusetts with momondo
Airline
Rating
Free Cancellation
Price
Alaska AirlinesPriceFrom $131Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $178Free CancellationRating
7.9
7,973 reviews
Search Delta flights
JetBluePriceFrom $223Free CancellationRating
7.2
2,911 reviews
Search JetBlue flights
United AirlinesPriceFrom $266Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
American AirlinesPriceFrom $298Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $308Free CancellationRating
8.0
4,244 reviews
Search Southwest flights

Why use momondo?

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

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

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Massachusetts.

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

Yes. momondo can track prices for Ontario to Massachusetts flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Massachusetts 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 10/24
Fri 10/31
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Massachusetts

Popular cities in Massachusetts

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $50
Flights to Los Angelesfrom $44
Flights to Miamifrom $49
Flights to Chicagofrom $65
Flights to Orlandofrom $56
Flights to Las Vegasfrom $44
Flights to San Franciscofrom $60
Flights to Washington, D.C.from $56
Flights to Bostonfrom $68
Flights to Atlantafrom $51
Flights to Dallasfrom $60
Flights to Seattlefrom $86