$109 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 12/20. 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to New Hampshire.
In the last 7 days travelers have searched 46,646,933 times on KAYAK, and here is why:

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Best New Hampshire Flight Deals

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

Boston
Boston2 stops$242
Portland
Portland2 stops$446

Good to know

Low season

January

High season

June

Cheapest flight

$109
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly with an average 44% increase in price.
Flight from Ontario to Boston

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 to New Hampshire from Ontario 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 to New Hampshire with an airline and back to Ontario 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 to New Hampshire from Ontario 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

  • Morning departure is around 28% 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 5 airlines serving 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.
8.2
China AirlinesOverall score based on 776 reviews
8.3Boarding
8.0Entertainment
8.6Crew
7.8Food
8.0Comfort
Airline reviews

Airline itself is great. While food was being taken off of my tray my beer spilled which was a total accident and I wasn’t upset about that, what was frustrating was I had to ask for towels to clean up and wipe my leg. It would have been left as is if I hadn’t.

4.0 OkayAnonymous, Sep 2024TPE - SEA
Read more China Airlines reviews

Airline itself is great. While food was being taken off of my tray my beer spilled which was a total accident and I wasn’t upset about that, what was frustrating was I had to ask for towels to clean up and wipe my leg. It would have been left as is if I hadn’t.

Bars and restaurants in Taipei close early. The lounge isn’t very good, but better than the public areas.

Unable to set seat assignment. Got a call from presumably “China airlines representative” but was asking for an exorbitant amount for the seat assignment. Was traveling as a family end up being assigned to different seats as a result. Will never use underpricer again.

Not many selections for entertainment. Bulk head seats are no longer available with out fee at the counter. That’s pretty lame.

I would have liked to know how to order a special meal (for medical purposes) before the flight.

The flight who provided services on my row had some not-nice attitude and not smiling at all.

My flight to Los Angeles was canceled Had to book another flight and you charged me extra $500 Very bad experience

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

Decent flight, staff was very good, especially with the turbulence during the flight due to weather. Comfort was about par with other airlines but since it was a quick flight, was not much of an issue for us.

The plane was uncomfortable. I paid extra for more legroom but the seat was still uncomfortable. Other seats on the same exact row didn’t have to pay extra but still have extra legroom. I didn’t understand why I needed to pay $170 for. It was Iike China airline just wants to make money off their passengers. It was unfair.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

New boarding doesn't make sense. Filling front first is slow.

Delta flight was great from the check in all the way to arrival. However, I had a very bad experience. I requested a wheelchair and the wheelchair employee that went to pick me up from the plane in Boston to bring me to the baggage claims told me I have to pay him. I was under the impression that it was a free service and I usually give tips but the person forced me to pay and since I said no because I was upset with his demand when my daughter walked in to pick me up he demanded payment from my daughter who paid him thinking maybe now it is a charged service.

Horrible. Grateful to be alive but spent 13 hours at airport only to return back to my familys house and flight changed to next day. They tried to fix a part on plane, had no back up plane and after 10 hours , reattempted the flight and it STILL wasn't fixed. We got a meal voucher and rescheduled flight but there should be some other compensation for the 15 hours spent in airport

My seat was changed at the last minute and I was moved to the last row, right next to the bathroom despite selecting my seat well in advance. I was also made to check my carry on due to space but when I got on the plane there was significant empty overhead space. Picking up my carry on from the luggage carousel added time to my trip which had already been extended due to delay.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

Not enough room between rows and food was gross. $160 baggage charge?! Never again.

It was fine. The flight attendant appeared to be in a bad mood but everything was fine.

Seats are outdated. Entertainment relies on personal device. Boarding was delayed due to inaccurate passenger tracking, resulted in late arrival at Reno.

Excellent staff helping my 96 year old senior promptly with her oxygen needs

The crew and flight was amazing. I haven't flown United in years but plan to switch to you being my main airline

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

I am not an electronic savy. I don't know how to maneuver the APPS for services. Why can't I just buy food without the apps.

This was a short flight with no food. The attendants were great but the comfort was poor: just to cramped. The flight from Denver to Frankfort was excellent! Seating was roomier, food was good, service was good. This was a great experience.

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.

This is a new route from Philadelphia to Naples. It was sold out. The team on board was excellent. I’ve flown this route twice this year and the flight has been excellent. I hope American keeps the route.

My first flight was moved 6 hours causing me to miss my meeting. The second was delayed about an hour and a half. Most of the crews apparently dont like their jobs or just working for Frontier. Only one flight attendant wasn"t snappy or rude.

Booked direct in July '24. Turned into a 14 hr layover (both ways) in Denver. My 5 day vaca turned into a 1 day . Not good, BUT,... Thank you for the people @ Frontier who were professionally friendly & approachable.

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There was no easy way to check in. I don't want to install an app to checkin. I will use alaska from now on because they have a web check in method that is easy.

Horrible! The short distance flight ended up taking 5 hrs! There was a 3 hr delay for the flight to take off and there was a 70 min wait on the tarmac for some bogus reason that the pilot said the gate he was supposed to board was taken up. After a 30 min wait he said the plane that was supposed to push out of the gate called a medical emergency and 40 min later he ended up boarding another gate. For the initial 3 hr delay there was no information/alert about the gate or delay in the app or the boards up until the boarding time and even beyond! Had to walk all the way to the end of the terminal to find the frontier staff to ask what was going on. Avoid this airline at all costs! If you have carryon bags or checked bags , their prices come equivalent to the prices of more reliable airlines. They are the worst in timeliness at 60% (reported as delayed) this year (check the data) by a high margin even compared to the second worst airline. If you are ok with having a miserable flight experience with the odds close to flip of a coin, feel free to try them. If you value your time , money and flying experience, stay away.

Allowed me to chose my seat without extra charge (I purchased full-price ticket) and boarding was in group1. Didn't even serve water.

I went to the Frontier counter in San Jose at 1030am or so on Sunday 10/13/24 to see if I could get an earlier flight to San Diego in lieu of my reserved 630pm flight. One thing led to another, and I was able to obtain an open seat for about $ 56. on the earlier flight. Fine. Then the agent asked if I "was checking a bag". Not knowing that carry-ons cost extra per Frontier policy, I thought that she meant a regular checked bag. Therefore, I said no. Once I got to the gate, the same gate agent who sold me a ticket told me that I had to pay $99 for a carry-on, and that all bags were extra on Frontier. Having never flown on Frontier, I was not aware of this. Part of the issue was that she was not a native English speaker, so there was a miscommunication as to what "bag" meant. I would have preferred for her to have clearly let me know at the front counter that any bag including a carry-on cost $99. It would have had the same outcome, as I had to take my carry-on. But it got hectic at the last minute at the gate itself. The baggage policy should have mentioned "including carry-ons" when we first spoke.

Most horrible airlines. Please avoid it. It's ok to spend $50 extra for delta, united or Alaska

Every day about it was very different all the boarding pass where all wrong l miss flight no refund all crazy

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.
1/15Wed
2 stopsFrontier
37h 42mONT-BOS
1/19Sun
2 stopsFrontier
41h 46mBOS-ONT
$242
1/15Wed
3 stops
29h 35mONT-BOS
1/19Sun
2 stops
41h 46mBOS-ONT
$261
12/25Wed
1 stopAmerican Airlines
7h 21mONT-BOS
1/10Fri
1 stopAmerican Airlines
8h 52mBOS-ONT
$293
12/25Wed
1 stopAmerican Airlines
7h 21mONT-BOS
1/10Fri
1 stopAmerican Airlines
8h 52mBOS-ONT
$302
1/10Fri
1 stopAlaska Airlines
9h 26mONT-BOS
1/13Mon
1 stopAlaska Airlines
18h 35mBOS-ONT
$308
12/24Tue
1 stopDelta
7h 33mONT-BOS
1/8Wed
1 stopDelta
9h 13mBOS-ONT
$312
1/10Fri
2 stopsUnited Airlines
11h 28mONT-BOS
1/13Mon
1 stopUnited Airlines
9h 59mBOS-ONT
$313
1/10Fri
2 stopsUnited Airlines
9h 13mONT-BOS
1/13Mon
2 stopsUnited Airlines
11h 39mBOS-ONT
$318
1/10Fri
1 stopAlaska Airlines
9h 26mONT-BOS
1/13Mon
2 stopsAlaska Airlines
30h 43mBOS-ONT
$320
12/19Thu
1 stopDelta
8h 12mONT-BOS
1/6Mon
1 stopDelta
9h 13mBOS-ONT
$327

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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.
12/20Fri
2 stopsFrontier
17h 49mONT-BOS
$109
1/26Sun
2 stopsFrontier
19h 22mONT-PWM
$116
12/24Tue
1 stopAmerican Airlines
7h 42mONT-BOS
$139
12/20Fri
1 stopAmerican Airlines
7h 31mONT-BOS
$143
12/14Sat
1 stopDelta
9h 03mONT-PWM
$148
1/9Thu
1 stopAlaska Airlines
9h 26mONT-BOS
$154
12/11Wed
1 stopUnited Airlines
8h 33mONT-BOS
$158
2/15Sat
1 stopDelta
11h 50mONT-BOS
$162
12/11Wed
1 stopAlaska Airlines
30h 13mONT-BOS
$167
1/28Tue
2 stopsUnited Airlines
14h 20mONT-PWM
$173

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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.
11/23Sat
multi-stopDelta
8h 23mONT-BOS
11/26Tue
multi-stopDelta
8h 41mBOS-ONT
$516
11/26Tue
multi-stopAlaska Airlines
10h 09mONT-BOS
11/28Thu
multi-stopAlaska Airlines
12h 02mBOS-ONT
$552
11/22Fri
multi-stopAlaska Airlines
11h 59mONT-BOS
11/27Wed
multi-stopAlaska Airlines
10h 12mBOS-ONT
$675
11/22Fri
multi-stopSouthwest
8h 40mONT-BOS
11/27Wed
multi-stopSouthwest
12h 25mBOS-ONT
$680
11/25Mon
multi-stopUnited Airlines
11h 09mONT-PWM
11/28Thu
multi-stopUnited Airlines
12h 14mPWM-ONT
$691
11/22Fri
multi-stopUnited Airlines
7h 37mONT-BOS
12/24Tue
multi-stopUnited Airlines
8h 34mBOS-ONT
$692
11/24Sun
multi-stopDelta
8h 32mONT-BOS
11/29Fri
multi-stopDelta
8h 41mBOS-ONT
$717
11/23Sat
multi-stopAmerican Airlines
9h 34mONT-BOS
11/26Tue
multi-stopAmerican Airlines
9h 32mBOS-ONT
$721
11/22Fri
multi-stopSouthwest
8h 40mONT-BOS
11/27Wed
multi-stopSouthwest
10h 45mBOS-ONT
$727
11/25Mon
multi-stopAmerican Airlines
9h 26mONT-BOS
12/3Tue
multi-stopAmerican Airlines
8h 33mBOS-ONT
$762

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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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