Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to New Hampshire 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 New Hampshire departing on 9/30. 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

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 New Hampshire

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
Alaska Airlines Logo
6:00 am - 12:20 amONT-BOS
15h 20m1 stop
Alaska Airlines Logo
7:00 am - 3:17 pmBOS-ONT
11h 17m1 stop
$256Alaska Airlines
Find Deal
Wed, Oct 29 - Tue, Nov 4
American Airlines Logo
1:00 pm - 11:58 pmONT-BOS
7h 58m1 stop
American Airlines Logo
5:30 am - 11:53 amBOS-ONT
9h 23m1 stop
$257American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Hawaiian Airlines Logo
6:11 pm - 7:29 amONT-BOS
10h 18m1 stop
Hawaiian Airlines Logo
7:00 am - 3:17 pmBOS-ONT
11h 17m1 stop
$260Hawaiian Airlines
Find Deal
Mon, Nov 3 - Tue, Nov 11
American Airlines Logo
1:00 pm - 11:58 pmONT-BOS
7h 58m1 stop
American Airlines Logo
8:00 am - 3:24 pmBOS-ONT
10h 24m2 stops
$262American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Alaska Airlines Logo
11:30 am - 11:59 pmONT-BOS
9h 29m1 stop
Alaska Airlines Logo
7:00 am - 3:12 pmBOS-ONT
11h 12m1 stop
$277Alaska Airlines
Find Deal
Tue, Jan 13 - Thu, Jan 22
Hawaiian Airlines Logo
11:59 am - 12:20 amONT-BOS
9h 21m1 stop
Hawaiian Airlines Logo
7:00 am - 3:17 pmBOS-ONT
11h 17m1 stop
$288Hawaiian Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
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
12:00 pm - 10:55 pmONT-MHT
7h 55m1 stop
Southwest Logo
7:40 am - 5:45 pmMHT-ONT
13h 05m1 stop
$360Southwest
Find Deal
Wed, Oct 22 - Wed, Oct 29

American Airlines flights from Ontario to New Hampshire

Our best American Airlines deals on Ontario to New Hampshire flight tickets
American Airlines
Oct 21
ONT1:00 pmOntario
7h 58m
1 stop
BOS11:58 pmBoston Logan Intl
Oct 28
BOS5:30 amBoston Logan Intl
9h 23m
1 stop
ONT11:53 amOntario
$257
Find similar
American Airlines
Oct 21
ONT1:00 pmOntario
7h 58m
1 stop
BOS11:58 pmBoston Logan Intl
Oct 28
BOS8:00 amBoston Logan Intl
10h 24m
2 stops
ONT3:24 pmOntario
$262
Find similar
American Airlines
Nov 3
ONT12:55 pmOntario
7h 40m
1 stop
BOS11:35 pmBoston Logan Intl
Nov 5
BOS6:05 amBoston Logan Intl
8h 58m
1 stop
ONT12:03 pmOntario
$267
Find similar

Delta flights from Ontario to New Hampshire

Our best Delta deals on Ontario to New Hampshire flight tickets
Delta
Oct 30
ONT11:48 amOntario
9h 11m
1 stop
BOS11:59 pmBoston Logan Intl
Nov 3
BOS6:15 amBoston Logan Intl
8h 59m
1 stop
ONT12:14 pmOntario
$297
Find similar
Delta
Oct 25
ONT11:36 amOntario
10h 37m
1 stop
BOS1:13 amBoston Logan Intl
Oct 31
BOS1:45 pmBoston Logan Intl
8h 34m
1 stop
ONT7:19 pmOntario
$298
Find similar
Delta
Nov 3
ONT1:15 pmOntario
7h 33m
1 stop
BOS11:48 pmBoston Logan Intl
Nov 20
BOS6:53 pmBoston Logan Intl
7h 59m
1 stop
ONT11:52 pmOntario
$315
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to 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 25, 2025.
Use the filters below to find and compare flights from Ontario to New Hampshire 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

6:00 am-12:20 am

1 stop15h 20m

Boston Logan Intl

Tue 11/4

7:00 am-3:17 pm

1 stop11h 17m

$256

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 10/21

1:00 pm-11:58 pm

1 stop7h 58m

Boston Logan Intl

Tue 10/28

5:30 am-11:53 am

1 stop9h 23m

$257

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 11/3

6:11 pm-7:29 am

1 stop10h 18m

Boston Logan Intl

Tue 11/11

7:00 am-3:17 pm

1 stop11h 17m

$260

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 10/21

1:00 pm-11:58 pm

1 stop7h 58m

Boston Logan Intl

Tue 10/28

8:00 am-3:24 pm

2 stops10h 24m

$262

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 1/13

11:30 am-11:59 pm

1 stop9h 29m

Boston Logan Intl

Thu 1/22

7:00 am-3:12 pm

1 stop11h 12m

$277

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 10/29

11:59 am-12:20 am

1 stop9h 21m

Boston Logan Intl

Wed 11/5

7:00 am-3:17 pm

1 stop11h 17m

$288

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

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Wed 10/22

12:00 pm-10:55 pm

1 stop7h 55m

Manchester

Wed 10/29

7:40 am-5:45 pm

1 stop13h 05m

$360

Flights are sorted by cheapest round-trip flights first.

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

See travel insights to New Hampshire from

How to get the cheapest flight ticket from Ontario to 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 month to fly to New Hampshire?

The month of September is another great option to travel to New Hampshire, with average flight prices from Ontario averaging around $377.

What is the cheapest day to depart on your flight to New Hampshire?

The cheapest day to depart on your flight to New Hampshire is on a Tuesday when prices can be found for as low as $402. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Sunday, with ticket prices averaging around $602.

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

According to our data, the cheapest time of day to fly to New Hampshire is in the afternoon. momondo users have found flights departing from Ontario to New Hampshire in the afternoon for as low as $405. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the morning because they tend to be around $463. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to New Hampshire?

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

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

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

Cheap Ontario to New Hampshire flight deals and tips

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

Direct flights

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

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

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

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

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

    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 New Hampshire.

  • What documentation or ID do you need to fly to New Hampshire?

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

Best airlines flying from Ontario to New Hampshire

Compare and see reviews for airlines that fly from Ontario to New Hampshire with momondo
Airline
Rating
Free Cancellation
Price
SouthwestPriceFrom $374Free 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 New Hampshire?

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

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

Yes. momondo enables you to select and highlight flights to New Hampshire from Ontario with this policy.

How can momondo help me find flights from Ontario to New Hampshire?

momondo provides multiple filters to help you find the best flight to New Hampshire from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to New Hampshire from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your New Hampshire 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
Sat 10/25
Sat 11/1
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to New Hampshire

Popular cities in New Hampshire

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $50
Flights to Los Angelesfrom $50
Flights to Miamifrom $49
Flights to Chicagofrom $66
Flights to Orlandofrom $62
Flights to Las Vegasfrom $49
Flights to San Franciscofrom $60
Flights to Washington, D.C.from $58
Flights to Bostonfrom $68
Flights to Atlantafrom $51
Flights to Dallasfrom $60
Flights to Seattlefrom $102