£217 Find Cheap Flights from London Heathrow Airport 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 Heathrow to New Hampshire departing on 4/3. 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

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

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Best New Hampshire Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours

Boston
Boston1 stop£333

Good to know - Cheap tickets from London Heathrow Airport to New Hampshire

Low season

February

High season

July

Cheapest flight

£217
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (33% more expensive on average)
Flight from London Heathrow Airport to Boston

FAQs - booking New Hampshire flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport 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 London Heathrow Airport to New Hampshire.

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

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

  • What is the Hacker Fare option on flights from London Heathrow Airport to New Hampshire?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport 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 London Heathrow Airport 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 London Heathrow Airport 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 a cheap flight from London Heathrow Airport to New Hampshire

  • Book at least 1 week before departure in order to get a below-average price for flights from London Heathrow Airport to New Hampshire.
  • High season is considered to be June, July and August. The cheapest month to fly from London Heathrow Airport to New Hampshire is January.
  • Morning departure is around 33% 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 airlines flying from Heathrow to New Hampshire

 
See real verified KAYAK customer reviews for airlines flying from London 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 Heathrow 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.
7.6
FinnairOverall score based on 1281 reviews
6.7Food
8.2Crew
7.5Comfort
6.9Entertainment
7.7Boarding
Airline reviews

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

8.0 ExcellentRowland, Dec 2024HKG - SYD
Read more Finnair reviews

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

The entertainment system did not work. And we waited 45 minutes in our seats after we landed before we got to the gate

It was a pleasure definitely going with Iberia on my future travels

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

Average. Newark is a United Hub, yet a flight that is early somehow ends up getting late to the gate. Newark ATC needs help badly.

Awful. Worst airline I have ever been on. Crew were among the rudest people I have ever dealt with. United staff members were rude and disrespectful. My flight was delayed, causing me to miss a connecting flight. I understand things happen, but when staff start lying about what actually happened, that is when I have an issue. Just be honest, really it isn’t that hard. I’m being very honest with this review and I don’t find this difficult what so ever. In fact, because of United Airlines, my Christmas holiday was off to a really rocky start. As someone who has traveled across the world, it has only been United that I have had a truly awful experience.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Received an email the night before showing that there would be seatback entertainment on our flight. We get on and there was no seatback entertainment. And then it was a scramble to try to set up the iPads for the kids before takeoff so they could watch something for the four hour flight.

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Short flight - no food understandable. Flight was delayed for over an hour. Overall, it was good.

Boarding always seems a bit chaotic. Seat spacing could leave more for leg room.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

Book cheap flights from London to New Hampshire

Cheapest flights to New Hampshire from London found in 2025

Recent return flight deals

 
These are the cheapest return flights from London to New Hampshire found on KAYAK in the last 72 hours.
5/2Wed
1 stop
11h 35mLHR-BOS
10/2Mon
1 stop
11h 30mBOS-LHR
£333
31/1Fri
1 stopTAP AIR PORTUGAL
12h 40mLHR-BOS
6/2Thu
1 stopTAP AIR PORTUGAL
22h 25mBOS-LHR
£337
20/1Mon
1 stopLufthansa
28h 20mLHR-BOS
29/1Wed
1 stopLufthansa
10h 55mBOS-LHR
£343
13/1Mon
1 stopAir Canada
13h 25mLHR-BOS
20/1Mon
1 stopAir Canada
10h 30mBOS-LHR
£347
22/1Wed
1 stopLufthansa
17h 00mLHR-BOS
24/3Mon
1 stopLufthansa
11h 59mBOS-LHR
£349
14/1Tue
2 stopsUnited Airlines
29h 12mLHR-BOS
19/1Sun
1 stopUnited Airlines
30h 12mBOS-LHR
£358
4/2Tue
1 stopUnited Airlines
13h 15mLHR-BOS
11/2Tue
2 stopsUnited Airlines
14h 15mBOS-LHR
£362
5/2Wed
directFinnair
7h 50mLHR-BOS
18/2Tue
1 stopFinnair
9h 57mBOS-LHR
£393
20/1Mon
1 stopFinnair
11h 04mLHR-BOS
30/1Thu
directFinnair
6h 30mBOS-LHR
£397
13/1Mon
1 stopAir Canada
13h 25mLHR-BOS
20/1Mon
2 stopsAir Canada
15h 10mBOS-LHR
£398

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to New Hampshire found on KAYAK in the last 72 hours.
4/3Tue
2 stops
20h 00mLHR-BOS
£217
3/3Mon
1 stop
14h 25mLHR-BOS
£226
4/3Tue
1 stop
14h 25mLHR-BOS
£235
3/2Mon
1 stopVueling
29h 50mLHR-BOS
£259
6/2Thu
1 stopVueling
16h 45mLHR-BOS
£264
25/6Wed
1 stopIcelandair
10h 45mLHR-BOS
£337
2/2Sun
1 stopIcelandair
10h 30mLHR-BOS
£354
20/1Mon
directFinnair
7h 50mLHR-BOS
£392
20/1Mon
2 stopsUnited Airlines
16h 08mLHR-MHT
£2,312
20/4Sun
2 stopsUnited Airlines
17h 54mLHR-MHT
£2,315

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Last minute flights from Heathrow 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 London to New Hampshire that are departing in the next 10 days.
7/1Tue
multi-stop
30h 40mLHR-BOS
14/1Tue
multi-stop
14h 20mBOS-LHR
£590
6/1Mon
multi-stopScandinavian Airlines
20h 28mLHR-BOS
26/2Wed
multi-stopScandinavian Airlines
17h 40mBOS-LHR
£612
6/1Mon
multi-stopVirgin Atlantic
19h 10mLHR-BOS
26/2Wed
directVirgin Atlantic
6h 40mBOS-LHR
£626
7/1Tue
multi-stopKLM
13h 29mLHR-BOS
14/1Tue
directKLM
6h 45mBOS-LHR
£637
7/1Tue
directVirgin Atlantic
7h 55mLHR-BOS
14/1Tue
directVirgin Atlantic
6h 42mBOS-LHR
£651
7/1Tue
multi-stopUnited Airlines
14h 27mLHR-BOS
12/1Sun
multi-stopUnited Airlines
12h 05mBOS-LHR
£900
7/1Tue
multi-stopUnited Airlines
14h 29mLHR-BOS
14/1Tue
multi-stopUnited Airlines
14h 15mBOS-LHR
£908
5/1Sun
multi-stopFinnair
10h 38mLHR-BOS
26/2Wed
multi-stopFinnair
12h 10mBOS-LHR
£933
7/1Tue
directFinnair
7h 50mLHR-BOS
12/1Sun
directFinnair
6h 25mBOS-LHR
£944
5/1Sun
directKLM
7h 55mLHR-BOS
26/2Wed
directKLM
6h 40mBOS-LHR
£1,551

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

Information on your arrival and departure airports

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