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Ontario

$93+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — ONT
Nov 12 — Nov 191
Wed 11/12
Wed 11/19
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 October 13, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$286
(American Airlines)

One-way from

$93
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$352
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. 3% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 13, 2025.

This United Airlines deal was found by Cheapflights users on 10/12. 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 11/47:25 amBOS - ONT
1 stop8h 06mUnited Airlines
Tue 11/117:00 amONT - BOS
1 stop7h 15mUnited Airlines
Deal found 10/12$293
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:15 amBOS - ONT
1 stop9h 01mDelta
Sun 11/1610:25 pmONT - BOS
1 stop8h 10mDelta
Deal found 10/12$297
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:39 pmBOS - ONT
1 stop9h 26mDelta
Fri 12/1210:25 pmONT - BOS
1 stop8h 45mDelta
Deal found 10/12$299
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/106:00 amPWM - ONT
2 stops13h 09mDelta
Fri 11/1410:25 pmONT - PWM
2 stops10h 43mDelta
Deal found 10/12$307
This United Airlines deal was found by Cheapflights users on 10/12. 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.
Fri 11/74:15 pmBOS - ONT
1 stop9h 16mUnited Airlines
Mon 11/101:40 pmONT - BOS
1 stop8h 08mUnited Airlines
Deal found 10/12$321
This American Airlines deal was found by Cheapflights users on 10/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:41 amBOS - ONT
1 stop8h 19mAmerican Airlines
Tue 12/912:46 pmONT - BOS
1 stop7h 14mAmerican Airlines
Deal found 10/11$326
This KAYAK deal was found by Cheapflights users on 10/11. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:00 amBOS - ONT
1 stop11h 17mAlaska Airlines
Fri 11/144:11 pmONT - BOS
1 stop12h 18mAlaska Airlines
Deal found 10/11$328
This United Airlines deal was found by Cheapflights users on 10/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/109:15 amBOS - ONT
2 stops11h 19mUnited Airlines
Mon 11/171:40 pmONT - BOS
1 stop8h 08mUnited Airlines
Deal found 10/11$330
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:55 pmBOS - ONT
1 stop30h 46mDelta
Tue 11/114:49 pmONT - BOS
1 stop10h 36mDelta
Deal found 10/12$331
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Tue 11/49:45 amBOS - ONT
2 stops11h 35mAmerican Airlines
Wed 11/56:20 amONT - BOS
2 stops9h 27mAmerican Airlines
Deal found 10/12$336
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/236:10 amBOS - ONT
1 stop9h 08mDelta
Tue 12/21:20 pmONT - BOS
1 stop7h 21mDelta
Deal found 10/12$338
This Southwest deal was found by Cheapflights users on 10/11. 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.
Sat 12/137:45 amBOS - ONT
2 stops10h 40mSouthwest
Tue 12/309:30 amONT - BOS
1 stop10h 10mSouthwest
Deal found 10/11$341

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 October 13, 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 11/9

5:15 am-10:10 am

1 stop7h 55m

Ontario

Sun 11/16

2:15 pm-12:05 am

1 stop6h 50m

$293

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Fri 11/28

6:10 am-12:18 pm

1 stop9h 08m

Ontario

Thu 12/4

1:20 pm-11:41 pm

1 stop7h 21m

$297

PortlandOntario

PWM - ONT

PWMONT

Portland

Mon 11/10

6:00 am-4:09 pm

2 stops13h 09m

Ontario

Fri 11/14

5:49 pm-12:08 pm

2 stops15h 19m

$307

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Sat 12/13

7:45 am-3:25 pm

2 stops10h 40m

Ontario

Tue 12/30

9:30 am-10:40 pm

1 stop10h 10m

$341

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Thu 12/4

7:00 am-8:03 pm

2 stops16h 03m

Ontario

Mon 12/8

12:13 pm-7:29 am

1 stop16h 16m

$344

PortlandOntario

PWM - ONT

PWMONT

Portland

Sat 11/1

3:20 pm-8:44 pm

1 stop8h 24m

Ontario

Sat 11/8

5:05 am-3:48 pm

1 stop7h 43m

$351

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 10/28

12:25 pm-6:36 pm

1 stop9h 11m

Ontario

Fri 10/31

1:29 pm-11:39 pm

1 stop7h 10m

$358

BostonOntario

BOS - ONT

BOSONT

Boston Logan Intl

Tue 10/28

11:55 am-5:45 pm

1 stop8h 50m

Ontario

Fri 10/31

11:00 am-11:05 pm

2 stops9h 05m

$363

ManchesterOntario

MHT - ONT

MHTONT

Manchester

Thu 11/6

5:00 am-10:10 am

1 stop8h 10m

Ontario

Mon 11/10

10:50 am-12:05 am

1 stop10h 15m

$365

PortlandOntario

PWM - ONT

PWMONT

Portland

Mon 3/9

4:25 pm-10:15 pm

1 stop8h 50m

Ontario

Fri 3/13

11:50 pm-1:59 pm

2 stops11h 09m

$366

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 55 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 $115). Flying from New Hampshire to Ontario in April is currently the most expensive (average of $401). 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 7h 55m. 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 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 Alaska Airlines ($146), Delta ($149), and United Airlines ($181).

  • 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 $115). Flying from New Hampshire to Ontario in April is currently the most expensive (average of $401). 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 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 October 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$346Average$416FlexibilityNo cancel feeOn-time63%

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