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Cheap flights from Ontario to Boston from $222

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 12/31. 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

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American Airlines Logo
7:18 pm - 11:11 am
ONT
-
MHT
12h 53m2 stops
American Airlines Logo
6:00 am - 4:05 pm
MHT
-
ONT
13h 05m2 stops
$472American Airlines
Mon, Dec 29 - Tue, Jan 6
United Airlines Logo
5:05 am - 6:51 pm
ONT
-
MHT
10h 46m2 stops
United Airlines Logo
7:26 pm - 12:38 pm
MHT
-
ONT
20h 12m2 stops
$529United Airlines
Thu, Dec 25 - Wed, Dec 31
United Airlines Logo
5:05 am - 6:51 pm
ONT
-
MHT
10h 46m2 stops
United Airlines Logo
7:26 pm - 12:38 pm
MHT
-
ONT
20h 12m2 stops
$544United Airlines
Thu, Dec 25 - Wed, Dec 31
United Airlines Logo
5:05 am - 6:51 pm
ONT
-
MHT
10h 46m2 stops
United Airlines Logo
7:26 pm - 12:38 pm
MHT
-
ONT
20h 12m2 stops
$578United Airlines
Thu, Dec 25 - Thu, Jan 1
United Airlines Logo
5:05 am - 6:51 pm
ONT
-
MHT
10h 46m2 stops
United Airlines Logo
7:26 pm - 12:38 pm
MHT
-
ONT
20h 12m2 stops
$593United Airlines
Thu, Dec 25 - Sun, Jan 4
United Airlines Logo
5:05 am - 6:51 pm
ONT
-
MHT
10h 46m2 stops
United Airlines Logo
7:26 pm - 12:38 pm
MHT
-
ONT
20h 12m2 stops
$609United Airlines
Thu, Dec 25 - Fri, Jan 2
United Airlines Logo
5:05 am - 6:59 pm
ONT
-
MHT
10h 54m2 stops
United Airlines Logo
2:30 pm - 10:26 pm
MHT
-
ONT
10h 56m2 stops
$648United Airlines
Sat, May 2 - Sat, May 9
United Airlines Logo
5:00 am - 1:58 pm
ONT
-
MHT
29h 58m2 stops
United Airlines Logo
7:28 pm - 10:57 pm
MHT
-
ONT
30h 29m2 stops
$672United Airlines
Sat, Feb 14 - Tue, Feb 17
American Airlines Logo
10:40 pm - 12:05 pm
ONT
-
MHT
10h 25m1 stop
American Airlines Logo
6:00 am - 4:05 pm
MHT
-
ONT
13h 05m2 stops
$682American Airlines
Mon, Dec 29 - Tue, Jan 6
United Airlines Logo
11:59 pm - 6:51 pm
ONT
-
MHT
15h 52m2 stops
United Airlines Logo
7:26 pm - 12:38 pm
MHT
-
ONT
20h 12m2 stops
$685United Airlines
Wed, Dec 24 - Wed, Dec 31

United Airlines flights from Ontario to Manchester, New Hampshire

Our best United Airlines deals on Ontario to Manchester, New Hampshire flight tickets
United Airlines
Dec 25
ONT5:05 amOntario
10h 46m
2 stops
MHT6:51 pmManchester
Dec 31
MHT7:26 pmManchester
20h 12m
2 stops
ONT12:38 pmOntario
$529
Find similar
United Airlines
Dec 25
ONT5:05 amOntario
10h 46m
2 stops
MHT6:51 pmManchester
Dec 31
MHT7:26 pmManchester
20h 12m
2 stops
ONT12:38 pmOntario
$544
Find similar
United Airlines
Dec 25
ONT5:05 amOntario
10h 46m
2 stops
MHT6:51 pmManchester
Jan 1
MHT7:26 pmManchester
20h 12m
2 stops
ONT12:38 pmOntario
$578
Find similar

Southwest flights from Ontario to Manchester, New Hampshire

Our best Southwest deals on Ontario to Manchester, New Hampshire flight tickets
Southwest
Dec 18
ONT10:50 amOntario
10h 15m
1 stop
MHT12:05 amManchester
Dec 20
MHT5:50 pmManchester
8h 05m
1 stop
ONT10:55 pmOntario
$897
Find similar
Southwest
Dec 18
ONT10:50 amOntario
10h 15m
1 stop
MHT12:05 amManchester
Dec 20
MHT2:30 pmManchester
12h 25m
2 stops
ONT11:55 pmOntario
$902
Find similar
Southwest
Dec 18
ONT8:30 amOntario
9h 35m
2 stops
MHT9:05 pmManchester
Dec 20
MHT12:10 pmManchester
11h 00m
2 stops
ONT8:10 pmOntario
$907
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 December 11, 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

Mon 12/29

7:18 pm-11:11 am

2 stops12h 53m

Manchester

Tue 1/6

6:00 am-4:05 pm

2 stops13h 05m

$472

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 12/25

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Wed 12/31

7:26 pm-12:38 pm

2 stops20h 12m

$529

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 12/25

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Wed 12/31

7:26 pm-12:38 pm

2 stops20h 12m

$544

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 12/25

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Thu 1/1

7:26 pm-12:38 pm

2 stops20h 12m

$578

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 12/25

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Sun 1/4

7:26 pm-12:38 pm

2 stops20h 12m

$593

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 12/25

5:05 am-6:51 pm

2 stops10h 46m

Manchester

Fri 1/2

7:26 pm-12:38 pm

2 stops20h 12m

$609

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Sat 5/2

5:05 am-6:59 pm

2 stops10h 54m

Manchester

Sat 5/9

2:30 pm-10:26 pm

2 stops10h 56m

$648

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Sat 2/14

5:00 am-1:58 pm

2 stops29h 58m

Manchester

Tue 2/17

7:28 pm-10:57 pm

2 stops30h 29m

$672

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Mon 12/29

10:40 pm-12:05 pm

1 stop10h 25m

Manchester

Tue 1/6

6:00 am-4:05 pm

2 stops13h 05m

$682

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 12/24

11:59 pm-6:51 pm

2 stops15h 52m

Manchester

Wed 12/31

7:26 pm-12:38 pm

2 stops20h 12m

$685

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 16% 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

Fastest flight time

10h 38m

Direct flights

None
The fastest flight from Ontario to Manchester, New Hampshire takes 10h 38m
There are no direct flights from Ontario to Manchester, New Hampshire. There are no popular flight routes from Ontario to Manchester, New Hampshire.
Search flight deals

  • 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 10h 38m.

  • 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 $416Free CancellationRating
7.9
4,253 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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