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Cheap flights from Ontario to Boston from $288

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 8/27. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Boston

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
11:55 pm - 11:50 am
ONT
-
MHT
8h 55m
1 stop
Southwest Logo
8:00 am - 4:10 pm
MHT
-
ONT
11h 10m
1 stop
$350Southwest
Mon, Aug 17 - Mon, Aug 31
Southwest Logo
11:55 pm - 12:50 pm
ONT
-
MHT
9h 55m
2 stops
Southwest Logo
12:45 pm - 8:20 pm
MHT
-
ONT
10h 35m
2 stops
$410Southwest
Mon, Aug 17 - Mon, Aug 31
Southwest Logo
11:55 pm - 11:15 am
ONT
-
MHT
8h 20m
1 stop
Southwest Logo
6:10 pm - 11:35 pm
MHT
-
ONT
8h 25m
1 stop
$467Southwest
Fri, Sep 4 - Sun, Sep 20
Southwest Logo
11:55 pm - 11:15 am
ONT
-
MHT
8h 20m
1 stop
Southwest Logo
7:10 am - 2:10 pm
MHT
-
ONT
10h 00m
2 stops
$472Southwest
Fri, Sep 4 - Sun, Sep 20
Southwest Logo
11:55 pm - 11:15 am
ONT
-
MHT
8h 20m
1 stop
Southwest Logo
6:10 pm - 11:35 pm
MHT
-
ONT
8h 25m
1 stop
$487Southwest
Fri, Sep 4 - Sun, Sep 20
Southwest Logo
11:55 pm - 11:15 am
ONT
-
MHT
8h 20m
1 stop
Southwest Logo
7:10 am - 2:10 pm
MHT
-
ONT
10h 00m
2 stops
$492Southwest
Fri, Sep 4 - Sun, Sep 20
Southwest Logo
8:30 am - 10:25 pm
ONT
-
MHT
10h 55m
2 stops
Southwest Logo
2:20 pm - 10:50 pm
MHT
-
ONT
11h 30m
2 stops
$508Southwest
Fri, Sep 4 - Sun, Sep 20
United Airlines Logo
9:00 am - 11:57 pm
ONT
-
MHT
11h 57m
2 stops
United Airlines Logo
2:32 pm - 10:53 pm
MHT
-
ONT
11h 21m
2 stops
$511United Airlines
Tue, Oct 27 - Tue, Nov 3
United Airlines Logo
9:00 am - 11:57 pm
ONT
-
MHT
11h 57m
2 stops
United Airlines Logo
2:32 pm - 10:53 pm
MHT
-
ONT
11h 21m
2 stops
$538United Airlines
Wed, Oct 28 - Tue, Nov 3
United Airlines Logo
9:00 am - 11:57 pm
ONT
-
MHT
11h 57m
2 stops
United Airlines Logo
9:25 am - 10:53 pm
MHT
-
ONT
16h 28m
2 stops
$555United Airlines
Sat, Oct 31 - Wed, Nov 4

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Alaska Airlines flights from Ontario to Manchester, New Hampshire

Our best Alaska Airlines deals on Ontario to Manchester, New Hampshire flight tickets
Alaska Airlines
Sep 18
ONT6:02 amOntario
12h 54m
2 stops
MHT9:56 pmManchester
Sep 20
MHT12:02 pmManchester
14h 22m
2 stops
ONT11:24 pmOntario
$961
Alaska Airlines
Sep 17
ONT6:02 amOntario
12h 54m
2 stops
MHT9:56 pmManchester
Sep 20
MHT12:02 pmManchester
14h 22m
2 stops
ONT11:24 pmOntario
$1,062
Alaska Airlines
Nov 22
ONT4:01 pmOntario
15h 20m
2 stops
MHT10:21 amManchester
Dec 2
MHT11:37 amManchester
15h 22m
2 stops
ONT11:59 pmOntario
$1,082

United Airlines flights from Ontario to Manchester, New Hampshire

Our best United Airlines deals on Ontario to Manchester, New Hampshire flight tickets
United Airlines
Oct 27
ONT9:00 amOntario
11h 57m
2 stops
MHT11:57 pmManchester
Nov 3
MHT2:32 pmManchester
11h 21m
2 stops
ONT10:53 pmOntario
$511
United Airlines
Oct 28
ONT9:00 amOntario
11h 57m
2 stops
MHT11:57 pmManchester
Nov 3
MHT2:32 pmManchester
11h 21m
2 stops
ONT10:53 pmOntario
$538
United Airlines
Oct 31
ONT9:00 amOntario
11h 57m
2 stops
MHT11:57 pmManchester
Nov 4
MHT9:25 amManchester
16h 28m
2 stops
ONT10:53 pmOntario
$555

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 July 19, 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

Cheapest round-trip

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Mon 8/17

11:55 pm-11:50 am

1 stop8h 55m

Manchester

Mon 8/31

8:00 am-4:10 pm

1 stop11h 10m

$350

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Mon 8/17

11:55 pm-12:50 pm

2 stops9h 55m

Manchester

Mon 8/31

12:45 pm-8:20 pm

2 stops10h 35m

$410
Quickest round-trip

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 9/4

11:55 pm-11:15 am

1 stop8h 20m

Manchester

Sun 9/20

6:10 pm-11:35 pm

1 stop8h 25m

$467

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 9/4

11:55 pm-11:15 am

1 stop8h 20m

Manchester

Sun 9/20

7:10 am-2:10 pm

2 stops10h 00m

$472

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 9/4

11:55 pm-11:15 am

1 stop8h 20m

Manchester

Sun 9/20

6:10 pm-11:35 pm

1 stop8h 25m

$487

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 9/4

11:55 pm-11:15 am

1 stop8h 20m

Manchester

Sun 9/20

7:10 am-2:10 pm

2 stops10h 00m

$492

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 9/4

8:30 am-10:25 pm

2 stops10h 55m

Manchester

Sun 9/20

2:20 pm-10:50 pm

2 stops11h 30m

$508

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Tue 10/27

9:00 am-11:57 pm

2 stops11h 57m

Manchester

Tue 11/3

2:32 pm-10:53 pm

2 stops11h 21m

$511

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 10/28

9:00 am-11:57 pm

2 stops11h 57m

Manchester

Tue 11/3

2:32 pm-10:53 pm

2 stops11h 21m

$538

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Sat 10/31

9:00 am-11:57 pm

2 stops11h 57m

Manchester

Wed 11/4

9:25 am-10:53 pm

2 stops16h 28m

$555

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

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

You could potentially save up to 17% 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

8h 20m

Direct flights

None
The fastest flight from Ontario to Manchester, New Hampshire takes 8h 20m
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

Frequently asked questions about flying from Ontario to Manchester, New Hampshire

  • 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 8h 20m.

  • 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 $436Free 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.

An easier way to manage your Manchester, New Hampshire trip

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