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Cheap flights from Ontario to Boston from $274

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 5/27. 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

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Find the cheapest flights from Ontario to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 10:58 pm
ONT
-
MHT
13h 58m
2 stops
American Airlines Logo
11:55 am - 10:07 pm
MHT
-
ONT
13h 12m
2 stops
$421American Airlines
Sat, Mar 7 - Sat, Mar 14
Southwest Logo
11:55 pm - 10:50 am
ONT
-
MHT
7h 55m
1 stop
Southwest Logo
5:45 am - 12:05 pm
MHT
-
ONT
9h 20m
1 stop
$437Southwest
Tue, Jun 23 - Tue, Jun 30
Southwest Logo
11:55 pm - 10:50 am
ONT
-
MHT
7h 55m
1 stop
Southwest Logo
1:00 pm - 8:20 pm
MHT
-
ONT
10h 20m
2 stops
$442Southwest
Tue, Jun 23 - Tue, Jun 30
Southwest Logo
6:25 am - 9:50 pm
ONT
-
MHT
12h 25m
2 stops
Southwest Logo
9:15 am - 3:55 pm
MHT
-
ONT
9h 40m
1 stop
$452Southwest
Sat, Mar 7 - Sat, Mar 14
United Airlines Logo
7:00 am - 11:59 pm
ONT
-
MHT
13h 59m
2 stops
United Airlines Logo
2:35 pm - 10:28 pm
MHT
-
ONT
10h 53m
2 stops
$468United Airlines
Tue, Jun 23 - Tue, Jun 30
United Airlines Logo
6:37 pm - 1:44 pm
ONT
-
MHT
16h 07m
3 stops
United Airlines Logo
2:19 pm - 10:51 pm
MHT
-
ONT
11h 32m
2 stops
$488United Airlines
Wed, Mar 4 - Sat, Mar 7
Southwest Logo
9:25 pm - 10:55 am
ONT
-
MHT
10h 30m
1 stop
Southwest Logo
9:15 am - 3:55 pm
MHT
-
ONT
9h 40m
1 stop
$496Southwest
Sat, Mar 7 - Sat, Mar 14
United Airlines Logo
5:10 am - 6:56 pm
ONT
-
MHT
10h 46m
2 stops
United Airlines Logo
2:30 pm - 10:26 pm
MHT
-
ONT
10h 56m
2 stops
$607United Airlines
Wed, Apr 22 - Tue, Apr 28
United Airlines Logo
1:50 pm - 1:44 pm
ONT
-
MHT
20h 54m
2 stops
United Airlines Logo
2:19 pm - 10:51 pm
MHT
-
ONT
11h 32m
2 stops
$616United Airlines
Thu, Mar 5 - Sat, Mar 7
United Airlines Logo
5:15 am - 1:44 pm
ONT
-
MHT
29h 29m
3 stops
United Airlines Logo
2:19 pm - 10:51 pm
MHT
-
ONT
11h 32m
2 stops
$715United Airlines
Thu, Mar 5 - Sat, Mar 7

American Airlines flights from Ontario to Manchester, New Hampshire

Our best American Airlines deals on Ontario to Manchester, New Hampshire flight tickets
American Airlines
Mar 7
ONT6:00 amOntario
13h 58m
2 stops
MHT10:58 pmManchester
Mar 14
MHT11:55 amManchester
13h 12m
2 stops
ONT10:07 pmOntario
$421
American Airlines
Jun 21
ONT7:12 pmOntario
13h 34m
2 stops
MHT11:46 amManchester
Jul 1
MHT5:10 pmManchester
8h 26m
1 stop
ONT10:36 pmOntario
$912
American Airlines
Jun 21
ONT10:10 pmOntario
10h 23m
1 stop
MHT11:33 amManchester
Jul 1
MHT5:10 pmManchester
8h 26m
1 stop
ONT10:36 pmOntario
$958

Southwest flights from Ontario to Manchester, New Hampshire

Our best Southwest deals on Ontario to Manchester, New Hampshire flight tickets
Southwest
Jun 23
ONT11:55 pmOntario
7h 55m
1 stop
MHT10:50 amManchester
Jun 30
MHT5:45 amManchester
9h 20m
1 stop
ONT12:05 pmOntario
$437
Southwest
Jun 23
ONT11:55 pmOntario
7h 55m
1 stop
MHT10:50 amManchester
Jun 30
MHT1:00 pmManchester
10h 20m
2 stops
ONT8:20 pmOntario
$442
Southwest
Mar 7
ONT6:25 amOntario
12h 25m
2 stops
MHT9:50 pmManchester
Mar 14
MHT9:15 amManchester
9h 40m
1 stop
ONT3:55 pmOntario
$452

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 February 11, 2026.
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

Sat 3/7

6:00 am-10:58 pm

2 stops13h 58m

Manchester

Sat 3/14

11:55 am-10:07 pm

2 stops13h 12m

$421

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Tue 6/23

11:55 pm-10:50 am

1 stop7h 55m

Manchester

Tue 6/30

5:45 am-12:05 pm

1 stop9h 20m

$437

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Tue 6/23

11:55 pm-10:50 am

1 stop7h 55m

Manchester

Tue 6/30

1:00 pm-8:20 pm

2 stops10h 20m

$442

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Sat 3/7

6:25 am-9:50 pm

2 stops12h 25m

Manchester

Sat 3/14

9:15 am-3:55 pm

1 stop9h 40m

$452

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Tue 6/23

7:00 am-11:59 pm

2 stops13h 59m

Manchester

Tue 6/30

2:35 pm-10:28 pm

2 stops10h 53m

$468

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 3/4

6:37 pm-1:44 pm

3 stops16h 07m

Manchester

Sat 3/7

2:19 pm-10:51 pm

2 stops11h 32m

$488

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Sat 3/7

9:25 pm-10:55 am

1 stop10h 30m

Manchester

Sat 3/14

9:15 am-3:55 pm

1 stop9h 40m

$496

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 4/22

5:10 am-6:56 pm

2 stops10h 46m

Manchester

Tue 4/28

2:30 pm-10:26 pm

2 stops10h 56m

$607

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 3/5

1:50 pm-1:44 pm

2 stops20h 54m

Manchester

Sat 3/7

2:19 pm-10:51 pm

2 stops11h 32m

$616

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Thu 3/5

5:15 am-1:44 pm

3 stops29h 29m

Manchester

Sat 3/7

2:19 pm-10:51 pm

2 stops11h 32m

$715

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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

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

You could potentially save up to 56% 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 46m

Direct flights

None
The fastest flight from Ontario to Manchester, New Hampshire takes 10h 46m
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 46m.

  • 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
8.0
4,280 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.

An easier way to manage your Manchester, New Hampshire trip

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