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Cheap flights from Ontario to Boston from $231

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 Boston departing on 3/3. 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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0 bags

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Cheap round-trip flights

United Airlines Logo
5:05 am - 6:51 pmONT-MHT
10h 46m2 stops
United Airlines Logo
2:17 pm - 10:26 pmMHT-ONT
11h 09m2 stops
$427United Airlines
Find Deal
Wed, Jan 21 - Wed, Jan 28
American Airlines Logo
11:59 pm - 11:36 amONT-MHT
8h 37m1 stop
American Airlines Logo
5:43 am - 4:01 pmMHT-ONT
13h 18m2 stops
$437American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
Southwest Logo
12:50 pm - 12:20 amONT-MHT
8h 30m1 stop
Southwest Logo
1:40 pm - 10:50 pmMHT-ONT
12h 10m1 stop
$439Southwest
Find Deal
Thu, Oct 16 - Mon, Oct 20
United Airlines Logo
6:00 am - 6:51 pmONT-MHT
9h 51m2 stops
United Airlines Logo
2:17 pm - 10:26 pmMHT-ONT
11h 09m2 stops
$444United Airlines
Find Deal
Wed, Jan 21 - Mon, Jan 26
American Airlines Logo
11:59 pm - 11:36 amONT-MHT
8h 37m1 stop
American Airlines Logo
5:43 am - 4:01 pmMHT-ONT
13h 18m2 stops
$457American Airlines
Find Deal
Fri, Oct 31 - Sun, Nov 2
United Airlines Logo
6:00 am - 6:51 pmONT-MHT
9h 51m2 stops
United Airlines Logo
2:17 pm - 10:26 pmMHT-ONT
11h 09m2 stops
$458United Airlines
Find Deal
Wed, Jan 21 - Fri, Jan 23
United Airlines Logo
5:05 am - 6:51 pmONT-MHT
10h 46m2 stops
United Airlines Logo
2:17 pm - 10:26 pmMHT-ONT
11h 09m2 stops
$461United Airlines
Find Deal
Sat, Jan 17 - Sat, Jan 24
Southwest Logo
12:45 pm - 11:25 pmONT-MHT
7h 40m1 stop
Southwest Logo
5:05 pm - 10:50 pmMHT-ONT
8h 45m1 stop
$537Southwest
Find Deal
Mon, Sep 29 - Fri, Oct 3
Southwest Logo
10:35 am - 11:25 pmONT-MHT
9h 50m2 stops
Southwest Logo
5:05 pm - 10:50 pmMHT-ONT
8h 45m1 stop
$542Southwest
Find Deal
Mon, Sep 29 - Fri, Oct 3
Southwest Logo
10:35 am - 11:25 pmONT-MHT
9h 50m2 stops
Southwest Logo
12:15 pm - 8:05 pmMHT-ONT
10h 50m2 stops
$567Southwest
Find Deal
Mon, Sep 29 - Fri, Oct 3

American Airlines flights from Ontario to Manchester, New Hampshire

Our best American Airlines deals on Ontario to Manchester, New Hampshire flight tickets
American Airlines
Oct 31
ONT11:59 pmOntario
8h 37m
1 stop
MHT11:36 amManchester
Nov 2
MHT5:43 amManchester
13h 18m
2 stops
ONT4:01 pmOntario
$437
Find similar
American Airlines
Oct 31
ONT11:59 pmOntario
8h 37m
1 stop
MHT11:36 amManchester
Nov 2
MHT5:43 amManchester
13h 18m
2 stops
ONT4:01 pmOntario
$457
Find similar
American Airlines
Oct 31
ONT4:49 pmOntario
15h 47m
2 stops
MHT11:36 amManchester
Nov 2
MHT5:43 amManchester
13h 18m
2 stops
ONT4:01 pmOntario
$482
Find similar

United Airlines flights from Ontario to Manchester, New Hampshire

Our best United Airlines deals on Ontario to Manchester, New Hampshire flight tickets
United Airlines
Jan 21
ONT5:05 amOntario
10h 46m
2 stops
MHT6:51 pmManchester
Jan 28
MHT2:17 pmManchester
11h 09m
2 stops
ONT10:26 pmOntario
$427
Find similar
United Airlines
Jan 21
ONT6:00 amOntario
9h 51m
2 stops
MHT6:51 pmManchester
Jan 26
MHT2:17 pmManchester
11h 09m
2 stops
ONT10:26 pmOntario
$444
Find similar
United Airlines
Jan 21
ONT6:00 amOntario
9h 51m
2 stops
MHT6:51 pmManchester
Jan 23
MHT2:17 pmManchester
11h 09m
2 stops
ONT10:26 pmOntario
$458
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Manchester, New Hampshire 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 16, 2025.
Use the filters below to find and compare flights from Ontario to Manchester, New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 1/21

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Wed 1/28

2:17 pm-10:26 pm

2 stops11h 09m

$427

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 10/31

11:59 pm-11:36 am

1 stop8h 37m

Manchester

Sun 11/2

5:43 am-4:01 pm

2 stops13h 18m

$437

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 10/16

12:50 pm-12:20 am

1 stop8h 30m

Manchester

Mon 10/20

1:40 pm-10:50 pm

1 stop12h 10m

$439

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 1/21

6:00 am-6:51 pm

2 stops9h 51m

Manchester

Mon 1/26

2:17 pm-10:26 pm

2 stops11h 09m

$444

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 10/31

11:59 pm-11:36 am

1 stop8h 37m

Manchester

Sun 11/2

5:43 am-4:01 pm

2 stops13h 18m

$457

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 1/21

6:00 am-6:51 pm

2 stops9h 51m

Manchester

Fri 1/23

2:17 pm-10:26 pm

2 stops11h 09m

$458

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Sat 1/17

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Sat 1/24

2:17 pm-10:26 pm

2 stops11h 09m

$461

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Mon 9/29

12:45 pm-11:25 pm

1 stop7h 40m

Manchester

Fri 10/3

5:05 pm-10:50 pm

1 stop8h 45m

$537

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Mon 9/29

10:35 am-11:25 pm

2 stops9h 50m

Manchester

Fri 10/3

5:05 pm-10:50 pm

1 stop8h 45m

$542

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Mon 9/29

10:35 am-11:25 pm

2 stops9h 50m

Manchester

Fri 10/3

12:15 pm-8:05 pm

2 stops10h 50m

$567

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Ontario to Manchester, New Hampshire

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 day to depart on your flight to Manchester, New Hampshire?

Our data shows that Sunday is the least expensive day to fly to Manchester, New Hampshire. Tickets to fly out on this day can be as low as $441. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to Manchester, New Hampshire on Thursday is $608.

What is the cheapest time of day to depart on your flight to Manchester, New Hampshire?

Our most recent data shows that the best time of day to fly to Manchester, New Hampshire is in the evening. Flights from Ontario to Manchester, New Hampshire during this time can be as low as $516. Flights in the morning are often more expensive with an average ticket price of $566.

Can stopping save me money on Ontario to Manchester, New Hampshire flights?

You could potentially save up to 64% on your flight if you consider stops on a Ontario to Manchester, New Hampshire flight.

When to book flights from Ontario to Manchester, New Hampshire

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Manchester, New Hampshire according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Manchester, New Hampshire (ONT to MHT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Manchester, New Hampshire

Direct flights

None
There are no direct flights from Ontario to Manchester, New Hampshire. There are no popular flight routes from Ontario to Manchester, New Hampshire.
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  • How far is Ontario to Manchester by plane?

    A flight from Ontario to Manchester will travel around 2536.7 mi. A reasonable flight in good conditions will take 7h 40m.

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

    Prices for flights from Ontario Airport to Manchester Airport are updated daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Manchester Airport.

  • What documentation or ID do you need to fly to Manchester Airport?

    The travel and health documents required for your trip to Manchester Airport 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 Manchester Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Manchester, New Hampshire?

Best airlines flying from Ontario to Manchester, New Hampshire

Compare and see reviews for airlines that fly from Ontario to Manchester, New Hampshire with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $374Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Keene

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Manchester for you.

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

momondo does allow users to show only those flights to Manchester 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 Manchester?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Manchester from Ontario.

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

Price alerts on flights to Manchester from Ontario 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.

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