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Ontario

$80+ 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 1/14. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ONT
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/3. 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 12/179:19 amBOS - ONT
1 stop9h 43mAmerican Airlines
Mon 12/297:18 pmONT - BOS
1 stop7h 19mAmerican Airlines
Deal found 12/3$377
This American Airlines deal was found by Cheapflights users on 12/3. 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.
Sun 12/146:10 amBOS - ONT
1 stop8h 50mAmerican Airlines
Fri 1/912:57 pmONT - BOS
1 stop7h 15mAmerican Airlines
Deal found 12/3$389
This Delta deal was found by Cheapflights users on 12/3. 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 12/176:10 amBOS - ONT
1 stop9h 24mDelta
Fri 12/261:15 pmONT - BOS
1 stop8h 09mDelta
Deal found 12/3$398
This American Airlines deal was found by Cheapflights users on 12/4. 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.
Sun 12/146:10 amBOS - ONT
1 stop8h 50mAmerican Airlines
Thu 12/189:53 amONT - BOS
1 stop7h 17mAmerican Airlines
Deal found 12/4$422
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/166:10 amBOS - ONT
1 stop8h 50mAmerican Airlines
Mon 12/227:18 pmONT - BOS
1 stop7h 19mAmerican Airlines
Deal found 12/3$427
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/119:19 amBOS - ONT
1 stop9h 43mAmerican Airlines
Thu 12/256:20 amONT - BOS
1 stop7h 10mAmerican Airlines
Deal found 12/3$442
This American Airlines deal was found by Cheapflights users on 12/3. 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 12/126:00 amPWM - ONT
2 stops13h 02mAmerican Airlines
Mon 1/1211:59 pmONT - PWM
2 stops12h 32mAmerican Airlines
Deal found 12/3$447
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/313:22 pmBOS - ONT
1 stop9h 30mUnited Airlines
Mon 1/511:59 pmONT - BOS
1 stop7h 53mUnited Airlines
Deal found 12/4$457
This Delta deal was found by Cheapflights users on 12/4. 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 12/1311:00 amBOS - ONT
1 stop8h 09mDelta
Thu 12/181:29 pmONT - BOS
1 stop7h 12mDelta
Deal found 12/4$462
This Southwest deal was found by Cheapflights users on 12/2. 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.
Wed 12/2412:55 pmMHT - ONT
2 stops10h 50mSouthwest
Wed 12/318:30 amONT - MHT
2 stops9h 35mSouthwest
Deal found 12/2$518
This American Airlines deal was found by Cheapflights users on 12/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1712:17 pmMHT - ONT
2 stops13h 11mAmerican Airlines
Sun 12/217:10 amONT - MHT
2 stops13h 24mAmerican Airlines
Deal found 12/1$534
This Southwest deal was found by Cheapflights users on 12/2. 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 12/2510:05 amMHT - ONT
2 stops12h 10mSouthwest
Thu 1/16:50 amONT - MHT
1 stop11h 15mSouthwest
Deal found 12/2$538

Find 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 December 4, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$175
(American Airlines)

One-way from

$80
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$438
Provider with most accurate pricing for Boston Logan Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Los Angeles flights.
Search Deals
From New Hampshire to Ontario
Search Deals
One-way flight from New Hampshire to Ontario
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 4, 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

PortlandOntario

PWM - ONT

PWMONT

Portland

Wed 1/14

5:45 am-2:45 pm

2 stops12h 00m

Ontario

Tue 1/20

7:00 am-10:15 pm

2 stops12h 15m

$200

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 1/28

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Sat 1/31

11:53 am-11:54 pm

1 stop9h 01m

$266

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 1/21

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Sun 1/25

11:53 am-11:54 pm

1 stop9h 01m

$289

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 1/22

7:00 am-3:08 pm

1 stop11h 08m

Ontario

Sat 1/24

11:53 am-11:54 pm

1 stop9h 01m

$290

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 1/14

5:35 am-11:31 am

1 stop8h 56m

Ontario

Fri 1/16

10:30 pm-11:40 am

1 stop10h 10m

$297

PortlandOntario

PWM - ONT

PWMONT

Portland

Fri 1/16

12:40 pm-10:13 pm

2 stops12h 33m

Ontario

Sat 1/17

6:00 am-9:37 pm

2 stops12h 37m

$297

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 1/10

4:25 pm-9:48 pm

1 stop8h 23m

Ontario

Thu 1/15

5:07 pm-6:05 am

1 stop9h 58m

$297

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Mon 1/12

5:35 pm-10:38 pm

1 stop8h 03m

Ontario

Wed 1/14

1:11 pm-11:56 pm

1 stop7h 45m

$297

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Wed 1/14

4:25 pm-10:38 pm

1 stop9h 13m

Ontario

Sat 1/17

1:11 pm-11:56 pm

1 stop7h 45m

$297

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 4/25

4:23 pm-10:26 pm

1 stop9h 03m

Ontario

Sat 5/2

6:53 pm-10:47 am

2 stops12h 54m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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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 $115). Flying from New Hampshire to Ontario in April is currently the most expensive (average of $398). 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.

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.

  • How long is the flight from New Hampshire to Ontario?

    Departing from New Hampshire to Ontario will take you 8h 56m. New Hampshire and Ontario are separated by a distance of 2559 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Most travelers choose Boston Logan Intl - Ontario, Manchester - Ontario or Portland - 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 $115). Flying from New Hampshire to Ontario in April is currently the most expensive (average of $398). 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

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Top airline flying from New Hampshire to Ontario

Discover the top airline 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$346Average$421FlexibilityNo cancel feeOn-time63%

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