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Ontario

$118+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ONT
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$238
(Frontier)

One-way from

$118
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$438
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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High demand for flights, 0% potential price rise
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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 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 1, 2025.

This Frontier deal was found by Cheapflights users on 3/31. 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.
Sun 4/2712:29 pmBOS - ONT
1 stop9h 11mFrontier
Sat 5/36:47 pmONT - BOS
1 stop14h 20mFrontier
Deal found 3/31$238
This JetBlue deal was found by Cheapflights users on 3/31. 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.
Tue 6/1012:15 pmBOS - ONT
1 stop12h 07mJetBlue
Mon 6/1611:45 pmONT - BOS
1 stop9h 06mJetBlue
Deal found 3/31$271
This Trip.com deal was found by Cheapflights users on 3/31. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/245:45 pmBOS - ONT
1 stop9h 12mAlaska Airlines
Sat 5/315:55 pmONT - BOS
1 stop9h 15mAlaska Airlines
Deal found 3/31$273
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/31:56 pmPWM - ONT
1 stop10h 03mAmerican Airlines
Tue 5/1310:40 pmONT - PWM
1 stop10h 59mAmerican Airlines
Deal found 3/31$297
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/72:41 pmBOS - ONT
2 stops10h 16mAmerican Airlines
Wed 5/147:25 pmONT - BOS
1 stop7h 35mAmerican Airlines
Deal found 3/31$312
This Delta deal was found by Cheapflights users on 3/31. 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 4/206:39 pmBOS - ONT
1 stop8h 02mDelta
Tue 4/2910:15 pmONT - BOS
1 stop8h 17mDelta
Deal found 3/31$320
This JetBlue Airways deal was found by Cheapflights users on 4/1. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/303:35 pmPWM - ONT
1 stop8h 36mJetBlue
Fri 6/610:40 pmONT - PWM
1 stop11h 40mJetBlue
Deal found 4/1$320
This Delta deal was found by Cheapflights users on 3/31. 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 4/265:20 amPWM - ONT
1 stop8h 37mDelta
Sat 5/312:07 pmONT - PWM
1 stop8h 52mDelta
Deal found 3/31$327
This Expedia deal was found by Cheapflights users on 3/30. 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.
Sat 4/267:00 amBOS - ONT
1 stop11h 32mMultiple Airlines
Sat 5/106:47 pmONT - BOS
1 stop14h 20mMultiple Airlines
Deal found 3/30$328
This United Airlines deal was found by Cheapflights users on 3/30. 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 4/163:38 pmBOS - ONT
1 stop9h 20mUnited Airlines
Wed 4/233:55 pmONT - BOS
2 stops11h 03mUnited Airlines
Deal found 3/30$343
This Southwest deal was found by Cheapflights users on 3/30. 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.
Thu 8/76:40 amBOS - ONT
1 stop10h 35mSouthwest
Fri 8/1510:35 amONT - BOS
1 stop9h 00mSouthwest
Deal found 3/30$353
This Hawaiian Airlines deal was found by Cheapflights users on 3/31. 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 5/137:00 amBOS - ONT
1 stop11h 32mHawaiian Airlines
Sat 5/175:55 pmONT - BOS
1 stop9h 15mHawaiian Airlines
Deal found 3/31$362

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 1, 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

Sun 4/27

12:29 pm-6:40 pm

1 stop9h 11m

Ontario

Sat 5/3

6:47 pm-12:07 pm

1 stop14h 20m

$238

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 6/10

12:15 pm-9:22 pm

1 stop12h 07m

Ontario

Sat 6/14

11:45 pm-11:51 am

1 stop9h 06m

$271

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 5/24

5:45 pm-11:57 pm

1 stop9h 12m

Ontario

Sat 5/31

5:55 pm-6:10 am

1 stop9h 15m

$273

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 5/3

1:56 pm-8:59 pm

1 stop10h 03m

Ontario

Tue 5/13

10:40 pm-12:39 pm

1 stop10h 59m

$297

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 5/7

2:41 pm-9:57 pm

2 stops10h 16m

Ontario

Wed 5/14

7:25 pm-6:00 am

1 stop7h 35m

$312

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sun 4/20

6:39 pm-11:41 pm

1 stop8h 02m

Ontario

Mon 4/28

10:15 pm-9:32 am

1 stop8h 17m

$320

PortlandOntario

PWM - ONT

PWMONT

Portland

Fri 5/30

3:35 pm-9:11 pm

1 stop8h 36m

Ontario

Fri 6/6

10:40 pm-1:20 pm

1 stop11h 40m

$320

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 4/26

5:20 am-10:57 am

1 stop8h 37m

Ontario

Sat 5/3

12:07 pm-11:59 pm

1 stop8h 52m

$327

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 4/26

7:00 am-3:32 pm

1 stop11h 32m

Ontario

Sat 5/10

6:47 pm-12:07 pm

1 stop14h 20m

$328

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 4/16

3:38 pm-9:58 pm

1 stop9h 20m

Ontario

Wed 4/23

3:55 pm-5:58 am

2 stops11h 03m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 34 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 1, 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
9,823 reviews

Boarding

8.2

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,823 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Boarding

8.2

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Southwest
8.0
Very good
4,275 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Boarding

8.2

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Boarding

8.2

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,345 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Boarding

8.2

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,615 reviews
Alaska Airlines
8.0
Very good
9,823 reviews

Boarding

8.2

Food

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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 ($118), American Airlines ($135), and Alaska Airlines ($139).

  • 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 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$342Average$596FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$456FlexibilityNo cancel feeOn-time63%

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