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Ontario

$109+ 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
may. 6 — may. 131
mar. 5/6
mar. 5/13
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 mayo 1, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$238
(Frontier)

One-way from

$109
(Frontier)

Popular in

December

Cheapest in

September

Average price

$364
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 May 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 mayo 1, 2025.

This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/611:56 amBOS - ONT
1 stop10h 16mFrontier
dom. 6/88:07 pmONT - BOS
1 stop11h 54mFrontier
Deal found 4/30$238
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/246:45 amBOS - ONT
1 stop8h 05mAmerican Airlines
sáb. 5/316:15 amONT - BOS
1 stop10h 02mAmerican Airlines
Deal found 4/30$269
This American Airlines deal was found by Cheapflights users on 4/29. 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.
vie. 5/301:12 pmPWM - ONT
1 stop10h 53mAmerican Airlines
vie. 6/67:02 pmONT - PWM
2 stops12h 39mAmerican Airlines
Deal found 4/29$272
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/287:30 amBOS - ONT
1 stop11h 20mAlaska Airlines
mié. 6/411:51 amONT - BOS
1 stop9h 15mAlaska Airlines
Deal found 4/30$274
This United Airlines deal was found by Cheapflights users on 4/29. 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.
jue. 6/54:43 pmPWM - ONT
1 stop8h 43mUnited Airlines
mar. 6/106:32 pmONT - PWM
2 stops13h 01mUnited Airlines
Deal found 4/29$279
This JetBlue deal was found by Cheapflights users on 4/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 7/101:45 pmBOS - ONT
1 stop11h 45mJetBlue
dom. 7/1311:45 pmONT - BOS
1 stop9h 06mJetBlue
Deal found 4/30$291
This JetBlue deal was found by Cheapflights users on 4/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 7/42:19 pmPWM - ONT
1 stop10h 40mJetBlue
mar. 7/811:45 pmONT - PWM
1 stop10h 38mJetBlue
Deal found 4/30$291
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/244:25 pmBOS - ONT
1 stop8h 51mDelta
vie. 5/3012:18 pmONT - BOS
1 stop7h 32mDelta
Deal found 4/30$297
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/305:30 amPWM - ONT
1 stop8h 38mDelta
vie. 6/612:18 pmONT - PWM
1 stop8h 41mDelta
Deal found 4/30$297
This Southwest deal was found by Cheapflights users on 4/30. 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.
mié. 9/312:40 pmBOS - ONT
2 stops9h 55mSouthwest
jue. 9/412:45 pmONT - BOS
1 stop7h 35mSouthwest
Deal found 4/30$323
This Hawaiian Airlines deal was found by Cheapflights users on 4/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/107:00 amBOS - ONT
1 stop11h 32mHawaiian Airlines
sáb. 5/174:45 pmONT - BOS
1 stop11h 35mHawaiian Airlines
Deal found 4/30$363
This United Airlines deal was found by Cheapflights users on 4/30. 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.
mié. 5/147:30 amBOS - ONT
1 stop8h 08mUnited Airlines
lun. 5/196:48 pmONT - BOS
1 stop8h 25mUnited Airlines
Deal found 4/30$369

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 mayo 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

vie. 5/30

12:01 pm-7:43 pm

1 stop10h 42m

Ontario

jue. 6/5

8:07 pm-11:01 am

1 stop11h 54m

$218

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

lun. 6/2

11:56 am-7:12 pm

1 stop10h 16m

Ontario

mié. 6/4

11:51 am-12:06 am

1 stop9h 15m

$267

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

sáb. 5/24

6:45 am-11:50 am

1 stop8h 05m

Ontario

sáb. 5/31

6:15 am-7:17 pm

1 stop10h 02m

$269

PortlandOntario

PWM - ONT

PWMONT

Portland

vie. 5/30

1:12 pm-9:05 pm

1 stop10h 53m

Ontario

vie. 6/6

7:02 pm-10:41 am

2 stops12h 39m

$272

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

mié. 5/28

7:30 am-3:50 pm

1 stop11h 20m

Ontario

mié. 6/4

11:51 am-12:06 am

1 stop9h 15m

$274

PortlandOntario

PWM - ONT

PWMONT

Portland

jue. 6/5

4:43 pm-10:26 pm

1 stop8h 43m

Ontario

mar. 6/10

6:32 pm-10:33 am

2 stops13h 01m

$279

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

mar. 6/17

1:45 pm-9:59 pm

1 stop11h 14m

Ontario

lun. 6/23

11:59 pm-12:03 pm

1 stop9h 04m

$291

PortlandOntario

PWM - ONT

PWMONT

Portland

vie. 7/4

2:19 pm-9:59 pm

1 stop10h 40m

Ontario

mar. 7/8

11:45 pm-1:23 pm

1 stop10h 38m

$291

PortlandOntario

PWM - ONT

PWMONT

Portland

vie. 5/30

5:30 am-11:08 am

1 stop8h 38m

Ontario

vie. 6/6

12:18 pm-11:59 pm

1 stop8h 41m

$297

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

mar. 5/27

4:47 pm-10:26 pm

1 stop8h 39m

Ontario

lun. 6/2

6:32 pm-6:01 am

1 stop8h 29m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 mayo 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
9,972 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

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
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

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
4,294 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

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
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

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
2,409 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Food

7.1

Boarding

8.1

Crew

8.5

Comfort

7.9

Overall

8.0

Entertainment

7.1

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 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 ($109), Alaska Airlines ($135), and JetBlue ($142).

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

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