£322 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 30/4. 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
1 adult, Economy, 0 bags

KAYAK searches 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 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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Flight Deals

Book Cheap Heathrow to New Hampshire Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to New Hampshire that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to New Hampshire

Mon, 12 Jan - Mon, 19 Jan
United Airlines Logo
07:30 - 17:14
LHR
-
BOS
14h 44m2 stops
United Airlines Logo
12:08 - 06:40
BOS
-
LHR
13h 32m2 stops
£422United Airlines
Sun, 11 Jan - Sun, 18 Jan
Scandinavian Airlines Logo
06:40 - 15:50
LHR
-
BOS
14h 10m2 stops
Scandinavian Airlines Logo
17:35 - 16:00
BOS
-
LHR
17h 25m1 stop
£423Scandinavian Airlines
Sat, 7 Feb - Sun, 15 Feb
British Airways Logo
06:15 - 15:15
LHR
-
BOS
14h 00m1 stop
British Airways Logo
18:55 - 06:30
BOS
-
LHR
6h 35mdirect
£424British Airways
Mon, 26 Jan - Mon, 2 Feb
United Airlines Logo
06:50 - 18:32
LHR
-
BOS
16h 42m2 stops
United Airlines Logo
19:28 - 11:05
BOS
-
LHR
10h 37m1 stop
£425United Airlines
Sat, 24 Jan - Mon, 9 Feb
Scandinavian Airlines Logo
17:30 - 15:50
LHR
-
BOS
27h 20m2 stops
Scandinavian Airlines Logo
17:35 - 16:00
BOS
-
LHR
17h 25m1 stop
£425Scandinavian Airlines
Mon, 26 Jan - Mon, 2 Feb
Multiple Airlines Logo
06:50 - 14:52
LHR
-
BOS
13h 02m2 stops
Multiple Airlines Logo
15:35 - 07:10
BOS
-
LHR
10h 35m1 stop
£426Multiple Airlines
Tue, 13 Jan - Wed, 14 Jan
Aer Lingus Logo
10:00 - 16:50
LHR
-
BOS
11h 50m1 stop
Aer Lingus Logo
19:25 - 09:15
BOS
-
LHR
8h 50m1 stop
£427Aer Lingus
Wed, 28 Jan - Wed, 4 Feb
British Airways Logo
11:25 - 19:50
LHR
-
BOS
13h 25m1 stop
British Airways Logo
07:30 - 19:00
BOS
-
LHR
6h 30mdirect
£428British Airways
Sun, 11 Jan - Wed, 4 Feb
Iberia Logo
19:40 - 19:50
LHR
-
BOS
29h 10m1 stop
Iberia Logo
19:15 - 07:00
BOS
-
LHR
6h 45mdirect
£429Iberia
Mon, 12 Jan - Mon, 19 Jan
Multiple Airlines Logo
10:15 - 22:54
LHR
-
PWM
17h 39m1 stop
Multiple Airlines Logo
12:40 - 07:50
PWM
-
LHR
14h 10m1 stop
£539Multiple Airlines
Booking Insights

KAYAK's insights & trends for Heathrow to New Hampshire flights

Get data-powered insights and trends into flights from Heathrow to New Hampshire to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London Heathrow Airport to New Hampshire?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to New Hampshire, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Heathrow Airport to New Hampshire is February, when tickets cost £401 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of return tickets is £557 and £548 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to New Hampshire?

The average price of all round-trip flights from London Heathrow Airport to New Hampshire clicked on KAYAK for each day over the last 12 months.

For London Heathrow Airport to New Hampshire, Wednesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from New Hampshire back to London Heathrow Airport, the best deals are generally found on Monday, with Saturday being the most expensive.

How far in advance should I book a flight from London Heathrow Airport to New Hampshire?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to New Hampshire, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London Heathrow Airport to New Hampshire, you should book around 2 weeks before departure, which saves you about 33% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

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

Low seasonFebruary
Cheapest flight£322
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (17% 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.

  • What is the cheapest time of day to fly to New Hampshire?

    The cheapest time of day to fly to New Hampshire is generally in the afternoon, when retur flights cost £497 on average. Morning departures are around 3% more expensive than evening flights, on average. The most expensive time of day to fly to New Hampshire is generally at night, which is peak travel time and where the average cost of a ticket is £683.

Reviews of the top airline 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.
7.0
IcelandairOverall score based on 590 reviews
6.2Food
7.0Entertainment
7.2Boarding
8.0Crew
6.9Comfort
Airline reviews

Again, we paid $ 328.00 for specific seats are were assigned those seats.

2.0 MediocreAnonymous, Nov 2025
KEF - MSP
Read more Icelandair reviews

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

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

Information on your arrival and departure airports