£223 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 18/3. 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.
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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
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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£227

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

Low season

January

High season

July

Cheapest flight

£223
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (34% 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 September.
  • Morning departure is around 13% 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

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 1276 reviews
7.5Comfort
7.7Boarding
8.1Crew
6.7Food
6.9Entertainment
Airline reviews

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

8.0 ExcellentAnonymous, Jan 2025DFW - CVG
Read more Finnair reviews

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

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 tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Very modern plane. Good seat spacing. Meals were good. Screens had tons of movies and worked

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

For the most part united was a good experience, how ever when they came by with the snacks and water, they completely passed by my wife and I. As we were in separate rows. On a 5 hr flight we were not offered water

Fantastic crew. Flight was delayed at last minute but we were given updates every 20 minutes and the crew was so friendly and considerate. I miss the touch screens on the back of the seats, wish they would bring that back though.

Beijing PEK to SFO. I had an economy seat on this flight. The seat comfort was acceptable. My main complaint is with the FA’s lack of personality and absence from servicing the plane, specifically restroom care (I wish I could share a pic of the restroom that I captured) and care of travelers—drink cart/availability of drinks. I'm amazed at the level of service on other International travel where a passenger is most often appreciated.

Our seats were all the way in back of the plane,

Food choices were very limited. Taste of the dishes was average.

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.
3/5Sat
1 stopAustrian Airlines
12h 17mLHR-BOS
6/5Tue
1 stopAustrian Airlines
17h 10mBOS-LHR
£227
26/3Wed
1 stopIcelandair
18h 55mLHR-BOS
30/3Sun
1 stopIcelandair
18h 20mBOS-LHR
£359
26/3Wed
1 stopScandinavian Airlines
14h 10mLHR-BOS
31/3Mon
1 stopScandinavian Airlines
10h 40mBOS-LHR
£364
11/3Tue
1 stopScandinavian Airlines
25h 20mLHR-BOS
24/3Mon
2 stopsScandinavian Airlines
15h 50mBOS-LHR
£366
5/5Mon
1 stop
11h 40mLHR-BOS
12/5Mon
1 stop
10h 26mBOS-LHR
£382
13/3Thu
1 stop
11h 55mLHR-BOS
18/3Tue
1 stop
11h 59mBOS-LHR
£389
6/3Thu
2 stopsUnited Airlines
16h 02mLHR-BOS
11/3Tue
2 stopsUnited Airlines
13h 44mBOS-LHR
£392
6/3Thu
2 stopsUnited Airlines
16h 02mLHR-BOS
18/3Tue
2 stopsUnited Airlines
13h 48mBOS-LHR
£399
27/3Thu
1 stopFinnair
10h 49mLHR-BOS
29/3Sat
1 stopFinnair
29h 30mBOS-LHR
£439
28/2Fri
directFinnair
7h 35mLHR-BOS
12/3Wed
1 stopFinnair
8h 56mBOS-LHR
£443

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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.
18/3Tue
1 stop
25h 20mLHR-BOS
£223
25/3Tue
1 stop
25h 20mLHR-BOS
£224
23/4Wed
1 stop
14h 55mLHR-BOS
£229
12/6Thu
directFinnair
7h 15mLHR-BOS
£270
19/3Wed
1 stopVueling
28h 50mLHR-BOS
£335
17/3Mon
1 stopVueling
28h 50mLHR-BOS
£357
1/3Sat
1 stopAer Lingus
11h 50mLHR-BOS
£370
20/3Thu
1 stopAer Lingus
11h 50mLHR-BOS
£370
1/3Sat
2 stopsUnited Airlines
32h 50mLHR-MHT
£2,296
1/3Sat
2 stopsUnited Airlines
34h 09mLHR-MHT
£2,299

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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.
23/2Sun
multi-stopUnited Airlines
13h 25mLHR-BOS
2/3Sun
multi-stopUnited Airlines
10h 30mBOS-LHR
£409
23/2Sun
multi-stopAir Canada
13h 25mLHR-BOS
2/3Sun
multi-stopAir Canada
13h 15mBOS-LHR
£424
20/2Thu
multi-stopScandinavian Airlines
14h 10mLHR-BOS
23/2Sun
multi-stopScandinavian Airlines
19h 45mBOS-LHR
£478
21/2Fri
multi-stopScandinavian Airlines
14h 10mLHR-BOS
1/3Sat
multi-stopScandinavian Airlines
18h 15mBOS-LHR
£489
19/2Wed
multi-stopIcelandair
18h 55mLHR-BOS
27/2Thu
multi-stopIcelandair
26h 55mBOS-LHR
£549
19/2Wed
multi-stopIcelandair
18h 55mLHR-BOS
25/2Tue
multi-stopIcelandair
9h 50mBOS-LHR
£590
20/2Thu
multi-stop
38h 54mLHR-BOS
25/2Tue
multi-stop
9h 50mBOS-LHR
£597
20/2Thu
multi-stop
16h 50mLHR-BOS
27/2Thu
multi-stop
18h 15mBOS-LHR
£627
22/2Sat
multi-stopFinnair
10h 49mLHR-BOS
3/3Mon
multi-stopFinnair
11h 12mBOS-LHR
£642
22/2Sat
multi-stopFinnair
10h 49mLHR-BOS
3/3Mon
directFinnair
6h 50mBOS-LHR
£654

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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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