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New Hampshire

$109+ Cheap flights from Ontario (ONT) to New Hampshire

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MHT
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Ontario to New Hampshire

Keep the following information in mind while searching for Ontario to New Hampshire flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$269
(American Airlines)

One-way from

$109
(Frontier)

Popular in

July

Cheapest in

January

Average price

$400
Provider with most accurate pricing for Los Angeles-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Boston Logan Intl flights.
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From Ontario to New Hampshire
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One-way flight from Ontario to New Hampshire
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Highest demand for flights based on searches. 13% potential increase in price ($63 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to New Hampshire

Cheapest flights from Ontario to New Hampshire
Explore the most affordable flight options available from Ontario to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2410:51 amONT - BOS
1 stop8h 11mAmerican Airlines
Fri 5/308:00 amBOS - ONT
1 stop8h 52mAmerican Airlines
Deal found 3/28$269
This JetBlue deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:40 pmONT - BOS
1 stop7h 52mJetBlue
Wed 5/73:10 pmBOS - ONT
1 stop9h 01mJetBlue
Deal found 3/27$271
This Gotogate deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/58:07 pmONT - BOS
1 stop11h 54mFrontier
Mon 6/911:56 amBOS - ONT
1 stop10h 16mFrontier
Deal found 3/27$273
This Alaska Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/3011:46 amONT - BOS
1 stop9h 13mAlaska Airlines
Tue 5/67:00 amBOS - ONT
1 stop11h 32mAlaska Airlines
Deal found 3/27$279
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/223:55 pmONT - BOS
1 stop11h 18mUnited Airlines
Wed 4/301:54 pmBOS - ONT
1 stop9h 27mUnited Airlines
Deal found 3/27$297
This JetBlue deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/210:40 pmONT - PWM
1 stop11h 40mJetBlue
Sat 5/102:15 pmPWM - ONT
1 stop9h 56mJetBlue
Deal found 3/28$300
This Hawaiian Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/217:17 pmONT - BOS
1 stop9h 38mHawaiian Airlines
Sat 4/267:00 amBOS - ONT
1 stop11h 32mHawaiian Airlines
Deal found 3/27$312
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2810:15 pmONT - BOS
1 stop8h 17mDelta
Sun 5/46:15 amBOS - ONT
1 stop9h 01mDelta
Deal found 3/27$313
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/612:59 amONT - PWM
2 stops13h 12mAmerican Airlines
Sat 6/146:18 pmPWM - ONT
1 stop8h 41mAmerican Airlines
Deal found 3/27$332
This Southwest deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/99:20 pmONT - BOS
1 stop9h 40mSouthwest
Mon 7/146:45 pmBOS - ONT
1 stop8h 10mSouthwest
Deal found 3/27$343
This Kissandfly.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:46 amONT - BOS
1 stop9h 26mMultiple Airlines
Wed 5/77:00 amBOS - ONT
2 stops16h 34mMultiple Airlines
Deal found 3/27$345
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/247:20 amONT - MHT
2 stops12h 55mSouthwest
Sat 6/145:05 pmMHT - ONT
1 stop9h 15mSouthwest
Deal found 3/26$352

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
Use the filters below to find and compare flights from Ontario to New Hampshire that are best for you.

Fly from

Ontario

Fly to

New Hampshire

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 5/24

10:51 am-10:02 pm

1 stop8h 11m

Boston Logan Intl

Fri 5/30

8:00 am-1:52 pm

1 stop8h 52m

$269

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 5/1

10:40 pm-9:32 am

1 stop7h 52m

Boston Logan Intl

Wed 5/7

3:10 pm-9:11 pm

1 stop9h 01m

$271

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 6/5

8:07 pm-11:01 am

1 stop11h 54m

Boston Logan Intl

Mon 6/9

11:56 am-7:12 pm

1 stop10h 16m

$273

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 4/30

11:46 am-11:59 pm

1 stop9h 13m

Boston Logan Intl

Tue 5/6

7:00 am-3:32 pm

1 stop11h 32m

$279

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 4/22

3:55 pm-6:13 am

1 stop11h 18m

Boston Logan Intl

Wed 4/30

1:54 pm-8:21 pm

1 stop9h 27m

$297

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 5/2

10:40 pm-1:20 pm

1 stop11h 40m

Portland

Sat 5/10

2:15 pm-9:11 pm

1 stop9h 56m

$300

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 4/21

7:17 pm-7:55 am

1 stop9h 38m

Boston Logan Intl

Sat 4/26

7:00 am-3:32 pm

1 stop11h 32m

$312

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 4/28

10:15 pm-9:32 am

1 stop8h 17m

Boston Logan Intl

Sun 5/4

6:15 am-12:16 pm

1 stop9h 01m

$313

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Fri 6/6

12:59 am-5:11 pm

2 stops13h 12m

Portland

Sat 6/14

6:18 pm-11:59 pm

1 stop8h 41m

$332

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 7/9

9:20 pm-10:00 am

1 stop9h 40m

Boston Logan Intl

Mon 7/14

6:45 pm-11:55 pm

1 stop8h 10m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 38 results
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Best time to book a flight from Ontario to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to New Hampshire

What is the cheapest month to book a flight from Ontario to New Hampshire?

Currently, January is the cheapest month in which you can book a flight from Ontario to New Hampshire (average of $334). Flying from Ontario to New Hampshire in June is currently the most expensive (average of $445). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing New Hampshire

Get insights into the airlines that provide service to New Hampshire. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to New Hampshire. Reviews last updated March 28, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Ontario to New Hampshire have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,336 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Entertainment

7.6

Overall

8.1

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Ontario to New Hampshire. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to New Hampshire?

    For a flight from Ontario to New Hampshire, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • What are the cheapest airlines to fly from Ontario to New Hampshire one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $109. Hawaiian Airlines flights start at $133 while deals on Alaska Airlines start at $139 one-way.

  • What are the most popular routes from Ontario to New Hampshire?

    The most popular route from Ontario to New Hampshire is Ontario - Boston Logan Intl. You may also consider Ontario - Portland or Ontario - Manchester.

  • Can I find deals for flights from Ontario to New Hampshire that include hotel bookings?

    Yes. In addition to deals on Ontario to New Hampshire flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to New Hampshire?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to New Hampshire.

  • Can I find deals for business class flights from Ontario to New Hampshire?

    Yes. Cheapflights offers flight deals from Ontario to New Hampshire by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to New Hampshire?

    Currently, January is the cheapest month in which you can book a flight from Ontario to New Hampshire (average of $334). Flying from Ontario to New Hampshire in June is currently the most expensive (average of $445). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Ontario to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Ontario to New Hampshire

Discover the top airline that operate flights from Ontario to New Hampshire. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$391Average$692FlexibilityNo cancel feeOn-time71%
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