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New Hampshire

$114+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MHT
May 17 — May 241
Sat 5/17
Sat 5/24
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 May 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$291
(JetBlue)

One-way from

$114
(Trip.com)

Popular in

July

Cheapest in

January

Average price

$387
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. 11% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 12, 2025.

This JetBlue deal was found by Cheapflights users on 5/12. 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 8/1511:45 pmONT - BOS
1 stop10h 17mJetBlue
Wed 8/201:45 pmBOS - ONT
1 stop11h 45mJetBlue
Deal found 5/12$291
This Alaska Airlines deal was found by Cheapflights users on 5/12. 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.
Fri 5/3011:51 amONT - BOS
1 stop9h 15mAlaska Airlines
Wed 6/49:00 amBOS - ONT
1 stop9h 50mAlaska Airlines
Deal found 5/12$292
This Delta deal was found by Cheapflights users on 5/11. 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.
Sat 5/244:57 pmONT - BOS
1 stop10h 28mDelta
Fri 5/306:50 amBOS - ONT
1 stop8h 25mDelta
Deal found 5/11$297
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 8/271:00 pmONT - BOS
1 stop7h 49mAmerican Airlines
Sun 8/316:15 amBOS - ONT
1 stop8h 55mAmerican Airlines
Deal found 5/12$299
This Delta deal was found by Cheapflights users on 5/11. 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 6/1112:07 pmONT - PWM
1 stop9h 19mDelta
Tue 6/1712:49 pmPWM - ONT
2 stops13h 57mDelta
Deal found 5/11$302
This American Airlines deal was found by Cheapflights users on 5/12. 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 6/78:15 amONT - PWM
2 stops11h 29mAmerican Airlines
Sat 6/142:43 pmPWM - ONT
1 stop9h 30mAmerican Airlines
Deal found 5/12$306
This Hawaiian Airlines deal was found by Cheapflights users on 5/11. 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.
Tue 6/34:45 pmONT - BOS
1 stop11h 35mHawaiian Airlines
Tue 6/107:30 amBOS - ONT
1 stop11h 20mHawaiian Airlines
Deal found 5/11$316
This Frontier deal was found by Cheapflights users on 5/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/268:09 pmONT - BOS
1 stop11h 52mFrontier
Fri 7/1111:55 amBOS - ONT
1 stop10h 19mFrontier
Deal found 5/12$318
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/275:10 amONT - PWM
1 stop7h 31mUnited Airlines
Sat 5/3112:15 pmPWM - ONT
2 stops11h 49mUnited Airlines
Deal found 5/12$347
This United Airlines deal was found by Cheapflights users on 5/12. 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 5/271:33 pmONT - BOS
1 stop7h 20mUnited Airlines
Fri 5/309:00 amBOS - ONT
2 stops11h 25mUnited Airlines
Deal found 5/12$355
This Southwest deal was found by Cheapflights users on 5/11. 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.
Sun 8/39:20 pmONT - BOS
1 stop7h 25mSouthwest
Thu 8/76:40 amBOS - ONT
2 stops9h 00mSouthwest
Deal found 5/11$358
This JetBlue deal was found by Cheapflights users on 5/11. 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.
Wed 6/1110:59 pmONT - PWM
1 stop11h 24mJetBlue
Tue 6/172:19 pmPWM - ONT
1 stop10h 40mJetBlue
Deal found 5/11$381

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 May 12, 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

Fri 8/15

11:45 pm-1:02 pm

1 stop10h 17m

Boston Logan Intl

Wed 8/20

1:45 pm-10:30 pm

1 stop11h 45m

$291

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Fri 5/30

11:51 am-12:06 am

1 stop9h 15m

Boston Logan Intl

Wed 6/4

9:00 am-3:50 pm

1 stop9h 50m

$292

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Sat 5/24

4:57 pm-6:25 am

1 stop10h 28m

Boston Logan Intl

Fri 5/30

6:50 am-12:15 pm

1 stop8h 25m

$297

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Wed 8/27

1:00 pm-11:49 pm

1 stop7h 49m

Boston Logan Intl

Sun 8/31

6:15 am-12:10 pm

1 stop8h 55m

$299

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Wed 6/11

12:07 pm-12:26 am

1 stop9h 19m

Portland

Tue 6/17

12:49 pm-11:46 pm

2 stops13h 57m

$302

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Sat 6/7

8:15 am-10:44 pm

2 stops11h 29m

Portland

Sat 6/14

2:43 pm-9:13 pm

1 stop9h 30m

$306

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Tue 6/3

4:45 pm-7:20 am

1 stop11h 35m

Boston Logan Intl

Tue 6/10

7:30 am-3:50 pm

1 stop11h 20m

$316

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 6/26

8:09 pm-11:01 am

1 stop11h 52m

Boston Logan Intl

Fri 7/11

11:55 am-7:14 pm

1 stop10h 19m

$318

OntarioBoston

ONT - BOS

ONTBOS

Ontario

Thu 6/19

8:09 pm-6:51 pm

1 stop19h 42m

Boston Logan Intl

Mon 6/23

11:56 am-7:14 pm

1 stop10h 18m

$331

OntarioPortland

ONT - PWM

ONTPWM

Ontario

Tue 5/27

5:10 am-3:41 pm

1 stop7h 31m

Portland

Sat 5/31

12:15 pm-9:04 pm

2 stops11h 49m

$347

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 35 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 July is currently the most expensive (average of $414). 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 May 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,290 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,432 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Comfort

7.9

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $114. American Airlines flights start at $134 while deals on United Airlines start at $135 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 July is currently the most expensive (average of $414). 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 2 airlines flying from Ontario to New Hampshire

Discover the top 2 airlines 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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$374Average$486FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$391Average$692FlexibilityNo cancel feeOn-time71%

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