Find cheap flights from Islip to New Hampshire

Find cheap flights from Islip to New Hampshire

Round-trip
Economy
Islip (ISP)
New Hampshire
Sat 11/28
Sat 12/5
Any month
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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 November and December. The cheapest month to fly to New Hampshire is August.
  • Morning departure is around 11% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs - booking New Hampshire flights

Are there New Hampshire travel restrictions currently due to Coronavirus?

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

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

Top airline flying Islip Long Island to New Hampshire

Scores according to KAYAK customer reviews

7.2
American Airlines
Overall score based on 44,893 reviews
7.5
Boarding
7.1
Comfort
7.8
Crew
6.8
Entertainment
6.7
Food
Airline reviews

Pros: "The crew was awesome and boarding was quick"

Pros: "Nice attendants was the only thing good about this flight"
Cons: "Flight was very late causing problems for connection. Forced to check carryon due to poor storage. Seat instruction were in Spanish. Magazine was in Spanish. This is America and can’t it be in English."

Pros: "Crew were very friendly"
Cons: "AC power. Seat back TVs."

Pros: "Crew was OK"
Cons: "Seat was uncomfortable. There was no power outlet."

Cons: "Spent more than 500$ in an emergency flight that was delayed ten times"

Pros: "Crew was horrible. The flight attendant was rude to clients for no reason. On a power trip"

Pros: "They got me home eventually"
Cons: "Timeliness was awful. Late crew delayed the flight 50 min. Then ripped cargo net resulted in cargo shift."

Pros: "Great polite crew attentive to every need"

Pros: "Amazing crew, comfortable seat"
Cons: "Less delays and gate changes"

Pros: "The free movie"

Pros: "Crew was very nice and accommodating"
Cons: "Seat was uncomfortable but then again it was coach, not first or second class. Back hurt during flight and may consider paying to upgrade next time. Also not given a lot of space/ leg room."

Cons: "There was no movies in flight while returning back"

Cons: "Commuter jet boarding at DCA is going to stink until the new terminal is completed. Just is."

Pros: "Boarding was fairly quick, and improvement has been made with people waiting for their boarding group to be called from crowding the boarding line. The crew was friendly and accommodating."
Cons: "Several seat changes had to be made, but it all worked out."

Pros: "After we boarded there was a lot of confusion with the flight attendant. Apparently people ‘s bags got mislabeled. He didn’t know the those passengers final destination. Then he called out to see if a passenger was on board...shouldn’t he know? He had the list in his hand. Another baggage issue. Third, he asked if there were children under 10...was thoroughly confused when he only found one. It was a bit unsettling to the point where we were wondering where we were really going to end up. But our pilot, Hercules, got us there."
Cons: "Newport News airport was exceptional."

Cons: "It was not clear that I needed a different 6 letter code to checkin using the AA website. I finally got frustrated and called AA only to find out the code was different. The codes should have been the same or you should have referenced it on the website when I tried to check in"

Cons: "Flight cancelled and had to travel 60 miles at my expense to a different airport to get another flight same day"

Pros: "Once we boarded in philly"
Cons: "The amount of time on the ground"

Pros: "Direct flight Chicago to Paris."
Cons: "Uncomfortable seating. Almost 2 hrs delay leaving Chicago forced us to miss train connection in Paris. Bad layover times to get back to the States, almost 9 hrs was the only choice available."

Pros: "Nice crew"
Cons: "Old equipment"

Pros: "Nice staff. Seats are comfy."
Cons: "A lot of pushy people. I think it always happens on the flights back from vacation destinations, people are burnt out and want to get home. The American airlines staff were fine, though."

Pros: "Either Frank needs a raise or the register personnel need additional training. It seemed every time the desk needed assistance, they were hollering for Frank. May be nice to have an ear set for personnel so they aren’t hollering amidst the chaos. Honestly, I sat at Gate E16 for almost 2 hours and genuinely want to say, “Great job!” to Frank. He kept a level head through the madness and maintained his professionalism all the while. Thank you for your hard work, Frank. We need more like you."

Pros: "Crew was pleasant."
Cons: "Ancient plan with small bins and no at-seat entertainment."

Pros: "They took me to my destination"
Cons: "Veeery late, no information"

Pros: "CRJ 900s have more leg room than expected"

Pros: "Not much"
Cons: "Seating horrible"

Pros: "Little"
Cons: "Mechanical issues, late late late, bad communication, no apologies or compensation for huge waste of time."

Pros: "Trip on time"
Cons: "N/"

Cons: "Took forever"

Pros: "staff was amazing, entertainment great, dasani sparkling lime water tasty, very clean and reasonably comfortable"
Cons: "the breakfast was made of 90% sugar - this was very disappointing."

Cons: "Completely ignored for beverage service"

Cons: "Poor communication Delays -3 hrs"

Pros: "This JAL flight was actually operated by american airlines using an american airlines plane. This flight was not great compared to the JAL flight we took to Haneda which was actually a JAL plane which was roomier and had pretty good food."
Cons: "Food was extremely salty, overly sauced. The breakfast options were salmon or omelette and i got salmon. It was spongy and didn't look like salmon. It must have been mashed with something else and reformed into a roll form."

Pros: "Airport expansion"
Cons: "Due to construction traffic is a problem but still manageable"

Pros: "It was my first time I was a little scared but not anymore it was a smooth ride. Don't change nothing keep up the good work. Thanks for letting me explore"

Pros: "There was an air traffic back-up for a few minutes, and instead of just letting us sit there wondering what was going on, the pilot gave us periodic updates on what was happening, which made the process much easier. Also, the flight attendants were friendly, which makes a big difference."

Pros: "They flew us back to Charlotte in good time."
Cons: "Prior to take off as the plane backed away from the ramp, we heard a noise for several minutes from under the plane. It sounded like something with the wheels. Kinda unnerving. Just prior to taxiing the plane stopped, the pilot announced a technical difficulty. They had to reboot one system to correct it. We heard more wheel noise. Almost like the doors over the wheels were stuck. Again kinda unnerving. Once airborne everything was smooth."

Pros: "We moved due to job change and American would not work with us to Change a reservation."

Pros: "All flights were on time. American Airlines personal is extremely friendly"

Pros: "The seats were more comfortable. You"
Cons: "The middle seat and the guy in front of me who decided to recline!!!"

Pros: "The crew very helpful and nice."
Cons: "On the flight home my seat wouldn't let back, so I had to sleep in an upright position. Lol"

Pros: "No delays, went smoothly. Had to check my bag at the gate but no big deal."
Cons: "None"

Pros: "I liked nothing."
Cons: "We boarded an hour early. It was at least 80° on the plane, and then everyone got on. The crew was very rude. They ignored everyone in coach."

Pros: "Nothing"
Cons: "Everything"

Cons: "The airline overbooked the flight,so even though I had a ticket and was NOT standby, I almost didn't make it on even though there were seats available (after two people forfeited their seats) bc they were worried about over-weighting the plane. Then they packed us like sardines into the back row of the plane."

Pros: "American Airline flight was on time, actually, early departure and early arrival. Crew was friendly and helpful, and I arrived safely. There was room overhead for my carry-on. And I got a great deal thanks to Kayak."

Pros: "Flight crew very welcoming, flight was pleasant."
Cons: "Seating a bit tight. Didn't offer any snacks only ice water."

Cons: "The lady at baggage check-in was rude and persistent on not letting me board due to a slight fold in my passport. Other coworkers did not agree, and allowed me to proceed. She also spent 20 minutes in back searching for information while I waited and the line filled up. My luggage was also lost (the last to handle the luggage was this lady) and I needed to retrieve it 3 hours after my flight arrived."

Cons: "overcharges"

Read more about American Airlines
COVID-19 information

Safety measures for airlines flying from Islip to New Hampshire

Airlines flying from Islip to New Hampshire have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters

Mandatory masks

Masks required on board, masks provided

Social distancing seating

Middle seats unavailable to book

Pre-flight testing

Testing for antibodies, testing for symptoms

Book cheap flights from Islip Long Island to New Hampshire

Recent round-trip flight deals

4/23
Fri
2 stops
American Airlines
16h 52m
ISP - MHT
4/27
Tue
2 stops
American Airlines
22h 19m
MHT - ISP
4/23
Fri
2 stops
American Airlines
16h 52m
ISP - MHT
4/27
Tue
1 stop
American Airlines
14h 45m
MHT - ISP
4/23
Fri
1 stop
American Airlines
15h 45m
ISP - MHT
4/27
Tue
1 stop
American Airlines
7h 24m
MHT - ISP

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