$106 Find Cheap Flights from Ontario to New Hampshire

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to New Hampshire departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags

Search hundreds of travel sites at once for deals on flights to New Hampshire

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to New Hampshire, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to New Hampshire, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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Best New Hampshire Flight Deals from Ontario

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Boston
Boston1 stop$278
Portland
Portland1 stop$321

Good to know

Low season

January

High season

July

Cheapest flight

$106
Best time to beat the crowds with an average 47% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Ontario to Portland

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from Ontario to New Hampshire?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to New Hampshire.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to New Hampshire?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to New Hampshire is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to New Hampshire?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to New Hampshire with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to New Hampshire?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to New Hampshire up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to New Hampshire

  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be March, April and May. The cheapest month to fly from Ontario is January.
  • Morning departure is around 18% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top airline flying from Ontario to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from Ontario to New Hampshire. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to New Hampshire? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
7.3Comfort
8.0Crew
7.0Entertainment
7.6Boarding
6.5Food
Airline reviews

Multiple maintenance delays and the missed and rebooked connection changed gates at least 6 times including one which had us walking 20 minutes to another terminal and then back again. Seated our family of three in different middle seats throughout the plane and then there was an empty seat next to me. Very long travel day which I would have never agreed to if I knew the itinerary would be changed at 5 am, 2 hours before takeoff.

2.0 MediocreRob, Dec 2024SAN - DFW
Read more American Airlines reviews

Multiple maintenance delays and the missed and rebooked connection changed gates at least 6 times including one which had us walking 20 minutes to another terminal and then back again. Seated our family of three in different middle seats throughout the plane and then there was an empty seat next to me. Very long travel day which I would have never agreed to if I knew the itinerary would be changed at 5 am, 2 hours before takeoff.

It was as expected for such a short flight. No complaints

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Not too impressed with them to be honest. They had forgotten my gf meal, despite the fact that the app had notified me that it was sorted. Apparently there is a ‘glitch’ in the system, according to one of the stewardesses, and has been for a while. Also the legroom in economy is way too small (and I’m a slight person) and are very uncomfortable. An extra Internal flight I booked via the app, had not even given me the option to order a meal, so was unaware of that and left without food on a 9 hr. flight !! Don’t think I’ll use AA again after this.

The flight was uneventful. What was a problem was I was delayed getting home one entire day because the flight from Sacramento was delayed. That made getting to my connecting flight impossible. I had to stay another night at the hotel and incur that expense as a result.

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

Seats were very uncomfortable. I paid extra for a seat with more leg room, the seat was no different than a seat at the back of the plane. Flight attendant was rude.

Flights were on time. That's the main consideration since I had to change planes. The entertainment was whatever you bring with you and the food (in Economy) is non-existant. Neither of those was a surprise.

Mobility assistance at DFW is A JOKE!!! Totally disorganized, ineffective and annoying. Ended up having to walk and find our own way for a good part of the very, very long walk between gates. Worst assistance I have ever experienced.

Book cheap flights from Ontario to New Hampshire

Recent round-trip flight deals

 
These are the cheapest round-trip flights from Ontario to New Hampshire found on KAYAK in the last 72 hours.
1/18Sat
1 stopAmerican Airlines
7h 36mONT-BOS
1/21Tue
1 stopAmerican Airlines
8h 59mBOS-ONT
$278
1/18Sat
2 stopsAmerican Airlines
11h 29mONT-BOS
1/21Tue
1 stopAmerican Airlines
9h 18mBOS-ONT
$283
1/25Sat
1 stopUnited Airlines
7h 56mONT-BOS
2/4Tue
1 stopUnited Airlines
10h 04mBOS-ONT
$293
1/25Sat
2 stopsUnited Airlines
13h 49mONT-BOS
2/4Tue
1 stopUnited Airlines
8h 37mBOS-ONT
$298
1/25Sat
1 stopDelta
7h 58mONT-BOS
1/29Wed
1 stopDelta
9h 10mBOS-ONT
$308
1/25Sat
1 stopAlaska Airlines
28h 53mONT-BOS
1/30Thu
1 stopAlaska Airlines
11h 11mBOS-ONT
$315
2/6Thu
1 stopAlaska Airlines
9h 26mONT-BOS
2/8Sat
2 stopsAlaska Airlines
13h 04mBOS-ONT
$320
1/7Tue
1 stopDelta
7h 51mONT-PWM
1/14Tue
1 stopDelta
9h 16mPWM-ONT
$321
2/20Thu
2 stopsSouthwest
12h 00mONT-PWM
2/23Sun
2 stopsSouthwest
11h 00mPWM-ONT
$388
4/17Thu
2 stopsSouthwest
9h 30mONT-BOS
4/25Fri
2 stopsSouthwest
9h 20mBOS-ONT
$526

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to New Hampshire found on KAYAK in the last 72 hours.
2/25Tue
2 stopsFrontier
18h 40mONT-PWM
$106
1/23Thu
2 stopsFrontier
19h 37mONT-PWM
$107
1/25Sat
1 stopAmerican Airlines
7h 23mONT-BOS
$139
2/15Sat
1 stopAmerican Airlines
7h 04mONT-BOS
$140
2/25Tue
1 stopDelta
11h 50mONT-BOS
$154
1/18Sat
1 stopDelta
7h 58mONT-BOS
$158
4/9Wed
1 stopAlaska Airlines
9h 26mONT-BOS
$164
2/18Tue
2 stopsUnited Airlines
10h 15mONT-BOS
$170
2/5Wed
2 stopsAlaska Airlines
27h 15mONT-BOS
$172
2/18Tue
2 stopsUnited Airlines
12h 22mONT-PWM
$178

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Last minute flights from Ontario to New Hampshire

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to New Hampshire that are departing in the next 10 days.
12/30Mon
multi-stopDelta
7h 33mONT-BOS
1/6Mon
multi-stopDelta
9h 13mBOS-ONT
$441
12/30Mon
multi-stopDelta
10h 42mONT-BOS
1/2Thu
multi-stopDelta
9h 20mBOS-ONT
$536
12/28Sat
multi-stopSouthwest
9h 45mONT-BOS
1/4Sat
multi-stopSouthwest
10h 30mBOS-ONT
$631
12/30Mon
multi-stopUnited Airlines
9h 27mONT-BOS
1/2Thu
multi-stopUnited Airlines
8h 34mBOS-ONT
$636
12/29Sun
multi-stopAmerican Airlines
7h 30mONT-BOS
1/5Sun
multi-stopAmerican Airlines
8h 18mBOS-ONT
$656
12/29Sun
multi-stopSouthwest
7h 15mONT-BOS
1/5Sun
multi-stopSouthwest
10h 45mBOS-ONT
$661
12/28Sat
multi-stopAmerican Airlines
7h 43mONT-BOS
1/5Sun
multi-stopAmerican Airlines
10h 40mBOS-ONT
$712
12/30Mon
multi-stopAlaska Airlines
24h 27mONT-BOS
1/2Thu
multi-stopAlaska Airlines
16h 25mBOS-ONT
$725
12/28Sat
multi-stopUnited Airlines
9h 27mONT-BOS
1/4Sat
multi-stopUnited Airlines
12h 05mBOS-ONT
$726
12/26Thu
multi-stopAlaska Airlines
24h 07mONT-BOS
1/6Mon
multi-stopAlaska Airlines
29h 18mBOS-ONT
$737

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Everything you need to know for your flight from Ontario to New Hampshire

Information on your arrival and departure airports

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