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Ontario

$99+ Cheap flights from New Hampshire to Ontario (ONT)

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ONT
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from New Hampshire to Ontario

Keep the following information in mind while searching for New Hampshire to Ontario flight deals. Data was last updated April 24, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$218
(Frontier)

One-way from

$99
(Frontier)

Popular in

December

Cheapest in

September

Average price

$437
Provider with most accurate pricing for Boston Logan Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Los Angeles flights.
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From New Hampshire to Ontario
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One-way flight from New Hampshire to Ontario
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Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from New Hampshire to Ontario

Cheapest flights from New Hampshire to Ontario
Explore the most affordable flight options available from New Hampshire to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This Frontier deal was found by Cheapflights users on 4/23. 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.
Mon 6/211:56 amBOS - ONT
1 stop10h 16mFrontier
Thu 6/58:07 pmONT - BOS
1 stop11h 54mFrontier
Deal found 4/23$218
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 5/297:30 amBOS - ONT
1 stop11h 20mAlaska Airlines
Wed 6/411:51 amONT - BOS
1 stop9h 15mAlaska Airlines
Deal found 4/23$274
This Hawaiian Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 5/287:30 amBOS - ONT
1 stop11h 20mHawaiian Airlines
Fri 5/305:55 pmONT - BOS
1 stop9h 15mHawaiian Airlines
Deal found 4/23$283
This JetBlue deal was found by Cheapflights users on 4/23. 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 6/53:10 pmBOS - ONT
1 stop9h 01mJetBlue
Sun 6/810:59 pmONT - BOS
1 stop9h 43mJetBlue
Deal found 4/23$291
This American Airlines deal was found by Cheapflights users on 4/23. 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 5/1712:35 pmBOS - ONT
1 stop8h 48mAmerican Airlines
Sat 5/316:15 amONT - BOS
1 stop8h 04mAmerican Airlines
Deal found 4/23$293
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:35 amBOS - ONT
1 stop8h 03mDelta
Sat 7/511:49 amONT - BOS
1 stop7h 51mDelta
Deal found 4/22$297
This Delta deal was found by Cheapflights users on 4/23. 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.
Fri 8/2912:59 pmPWM - ONT
1 stop9h 30mDelta
Sun 9/710:59 pmONT - PWM
1 stop9h 31mDelta
Deal found 4/23$297
This Expedia deal was found by Cheapflights users on 4/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/87:00 amBOS - ONT
1 stop11h 32mMultiple Airlines
Sat 5/106:47 pmONT - BOS
1 stop14h 20mMultiple Airlines
Deal found 4/23$298
This American Airlines deal was found by Cheapflights users on 4/23. 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 8/281:18 pmPWM - ONT
2 stops11h 17mAmerican Airlines
Sun 9/78:04 pmONT - PWM
2 stops12h 06mAmerican Airlines
Deal found 4/23$307
This United Airlines deal was found by Cheapflights users on 4/23. 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 5/77:30 amBOS - ONT
1 stop8h 08mUnited Airlines
Mon 5/123:10 pmONT - BOS
2 stops11h 29mUnited Airlines
Deal found 4/23$352
This Southwest deal was found by Cheapflights users on 4/22. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/14:25 pmBOS - ONT
2 stops9h 15mSouthwest
Sat 7/56:15 amONT - BOS
1 stop12h 30mSouthwest
Deal found 4/22$362
This United Airlines deal was found by Cheapflights users on 4/23. 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 9/33:35 pmPWM - ONT
1 stop7h 58mUnited Airlines
Fri 9/196:38 pmONT - PWM
2 stops11h 46mUnited Airlines
Deal found 4/23$379

Cheapflights Fare Finder

Customize your flight search to find flights from New Hampshire to Ontario 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 April 24, 2025.
Use the filters below to find and compare flights from New Hampshire to Ontario that are best for you.

Fly from

New Hampshire

Fly to

Ontario

Route

Depart

Return

Price

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 6/2

11:56 am-7:12 pm

1 stop10h 16m

Ontario

Thu 6/5

8:07 pm-11:01 am

1 stop11h 54m

$218

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 5/29

7:30 am-3:50 pm

1 stop11h 20m

Ontario

Wed 6/4

11:51 am-12:06 am

1 stop9h 15m

$274

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 5/28

7:30 am-3:50 pm

1 stop11h 20m

Ontario

Thu 5/29

5:55 pm-6:10 am

1 stop9h 15m

$283

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 6/5

3:10 pm-9:11 pm

1 stop9h 01m

Ontario

Sun 6/8

10:59 pm-11:42 am

1 stop9h 43m

$291

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 5/17

12:35 pm-6:23 pm

1 stop8h 48m

Ontario

Sat 5/31

6:15 am-5:19 pm

1 stop8h 04m

$293

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 7/1

5:35 am-10:38 am

1 stop8h 03m

Ontario

Sat 7/5

11:49 am-10:40 pm

1 stop7h 51m

$297

PortlandOntario

PWM - ONT

PWMONT

Portland

Fri 8/29

12:59 pm-7:29 pm

1 stop9h 30m

Ontario

Sun 9/7

10:59 pm-11:30 am

1 stop9h 31m

$297

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 5/8

7:00 am-3:32 pm

1 stop11h 32m

Ontario

Sat 5/10

6:47 pm-12:07 pm

1 stop14h 20m

$298

PortlandOntario

PWM - ONT

PWMONT

Portland

Thu 8/28

1:18 pm-9:35 pm

2 stops11h 17m

Ontario

Sun 9/7

8:04 pm-11:10 am

2 stops12h 06m

$307

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 5/7

7:30 am-12:38 pm

1 stop8h 08m

Ontario

Mon 5/12

3:10 pm-5:39 am

2 stops11h 29m

$352

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 31 results
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Best time to book a flight from New Hampshire to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from New Hampshire 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 New Hampshire to Ontario

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

Currently, August is the cheapest month in which you can book a flight from New Hampshire to Ontario (average of $246). Flying from New Hampshire to Ontario in March is currently the most expensive (average of $328). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated April 24, 2025.
Read through reviews of airlines operating flights from New Hampshire to Ontario, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,918 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,393 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,685 reviews
Alaska Airlines
8.0
Very good
9,918 reviews

Comfort

7.9

Food

7.1

Boarding

8.2

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from New Hampshire to Ontario. 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 into for flights to Ontario from New Hampshire?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from New Hampshire. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    The cheapest airlines for a one-way flight from New Hampshire to Ontario are Frontier ($99), Alaska Airlines ($135), and United Airlines ($140).

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

    Most travelers choose Boston Logan Intl - Ontario, Portland - Ontario or Manchester - Ontario when deciding on the best route from New Hampshire to Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from New Hampshire to Ontario 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 New Hampshire to Ontario?

    Currently, August is the cheapest month in which you can book a flight from New Hampshire to Ontario (average of $246). Flying from New Hampshire to Ontario in March is currently the most expensive (average of $328). 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 New Hampshire to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from New Hampshire to Ontario

Discover the top 2 airlines that operate flights from New Hampshire to Ontario. 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$342Average$596FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$456FlexibilityNo cancel feeOn-time63%

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