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New Hampshire

$96+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MHT
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
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 February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$265
(JetBlue)

One-way from

$96
(Frontier)

Popular in

July

Cheapest in

January

Average price

$362
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. 14% potential increase in price ($65 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 February 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 February 22, 2025.

This JetBlue deal was found by Cheapflights users on 2/21. 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.
Mon 5/1210:40 pmONT - BOS
1 stop10h 02mJetBlue
Tue 5/132:45 pmBOS - ONT
1 stop9h 37mJetBlue
Deal found 2/21$265
This Delta deal was found by Cheapflights users on 2/21. 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.
Wed 4/211:42 amONT - BOS
1 stop9h 13mDelta
Wed 4/97:15 amBOS - ONT
1 stop12h 28mDelta
Deal found 2/21$283
This Alaska Airlines deal was found by Cheapflights users on 2/21. 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 3/196:00 amONT - BOS
1 stop14h 59mAlaska Airlines
Mon 3/247:00 amBOS - ONT
1 stop19h 59mAlaska Airlines
Deal found 2/21$302
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Thu 3/276:10 amONT - BOS
1 stop7h 19mAmerican Airlines
Wed 4/24:51 pmBOS - ONT
1 stop8h 09mAmerican Airlines
Deal found 2/21$318
This United Airlines deal was found by Cheapflights users on 2/22. 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.
Wed 9/246:27 pmONT - BOS
1 stop8h 34mUnited Airlines
Sat 9/273:10 pmBOS - ONT
1 stop10h 16mUnited Airlines
Deal found 2/22$324
This Southwest deal was found by Cheapflights users on 2/21. 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.
Tue 6/109:20 pmONT - BOS
1 stop7h 35mSouthwest
Tue 6/246:45 amBOS - ONT
1 stop9h 15mSouthwest
Deal found 2/21$377
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Wed 5/287:00 amONT - PWM
2 stops13h 27mUnited Airlines
Wed 6/46:00 amPWM - ONT
2 stops9h 31mUnited Airlines
Deal found 2/21$417
This United Airlines deal was found by Cheapflights users on 2/21. 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.
Fri 7/256:32 pmONT - MHT
2 stops13h 12mUnited Airlines
Mon 7/289:40 amMHT - ONT
2 stops14h 14mUnited Airlines
Deal found 2/21$428
This Southwest deal was found by Cheapflights users on 2/21. 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.
Fri 7/2510:00 amONT - MHT
2 stops10h 20mSouthwest
Mon 7/288:20 amMHT - ONT
1 stop12h 20mSouthwest
Deal found 2/21$458
This Delta deal was found by Cheapflights users on 2/21. 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.
Sun 3/3012:46 pmONT - PWM
1 stop8h 12mDelta
Sat 4/125:30 amPWM - ONT
1 stop8h 59mDelta
Deal found 2/21$460
This American Airlines deal was found by Cheapflights users on 2/21. 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.
Tue 5/2010:48 pmONT - MHT
1 stop10h 30mAmerican Airlines
Sat 5/2412:51 pmMHT - ONT
1 stop11h 14mAmerican Airlines
Deal found 2/21$480
This American Airlines deal was found by Cheapflights users on 2/22. 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 7/1112:57 amONT - PWM
2 stops11h 03mAmerican Airlines
Sun 7/206:30 pmPWM - ONT
1 stop17h 42mAmerican Airlines
Deal found 2/22$671

Find flights from Ontario to New Hampshire within your budget

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 February 22, 2025.

Fly from

Ontario

Fly to

New Hampshire

Route

Depart

Return

Price

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Mon 5/12

10:40 pm-11:42 am

1 stop10h 02m

Boston Logan Intl

Tue 5/13

2:45 pm-9:22 pm

1 stop9h 37m

$265

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 4/2

11:42 am-11:55 pm

1 stop9h 13m

Boston Logan Intl

Wed 4/9

7:15 am-4:43 pm

1 stop12h 28m

$283

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 3/19

6:00 am-11:59 pm

1 stop14h 59m

Boston Logan Intl

Mon 3/24

7:00 am-11:59 pm

1 stop19h 59m

$302

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 3/27

6:10 am-4:29 pm

1 stop7h 19m

Boston Logan Intl

Wed 4/2

4:51 pm-10:00 pm

1 stop8h 09m

$318

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 6/10

9:20 pm-7:55 am

1 stop7h 35m

Boston Logan Intl

Tue 6/24

6:45 am-1:00 pm

1 stop9h 15m

$377

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 6/24

6:32 pm-6:01 am

1 stop8h 29m

Boston Logan Intl

Sun 6/29

6:00 am-12:22 pm

1 stop9h 22m

$404

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 5/28

7:00 am-11:27 pm

2 stops13h 27m

Portland

Wed 6/4

6:00 am-12:31 pm

2 stops9h 31m

$417

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 7/25

6:32 pm-10:44 am

2 stops13h 12m

Manchester

Mon 7/28

9:40 am-8:54 pm

2 stops14h 14m

$428

OntarioManchester

ONT - MHT

ONTMHT

Ontario

Fri 7/25

10:00 am-11:20 pm

2 stops10h 20m

Manchester

Mon 7/28

8:20 am-5:40 pm

1 stop12h 20m

$458

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sun 3/30

12:46 pm-11:58 pm

1 stop8h 12m

Portland

Sat 4/12

5:30 am-11:29 am

1 stop8h 59m

$460

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 39 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.

Travel insights for flights from Ontario to New Hampshire

Get recent, data-driven insights about flights from Ontario to New Hampshire including ideal travel times, pricing trends, and more.

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 $453). 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 February 22, 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
4,395 reviews

Entertainment

7.6

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Southwest
8.1
Very good
4,395 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Alaska Airlines
8.0
Very good
9,700 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Hawaiian Airlines
7.9
Good
2,314 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

JetBlue
7.4
Good
3,068 reviews
Southwest
8.1
Very good
4,395 reviews

Entertainment

7.6

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Bhoopal,Nov 2024

STL - BOS

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

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 $96. JetBlue flights start at $136 while deals on Delta start at $142 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 $453). 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$416Average$719FlexibilityNo cancel feeOn-time71%
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