£207 Find Cheap Flights from London 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 London to New Hampshire departing on 27/8. 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

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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Cheap Flights from London to New Hampshire

Cheapest return prices found by our users on KAYAK in the last 72 hours
Boston
Boston1 stop£211
Boston
Boston1 stop£211

Book Cheap London 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 London 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 London to New Hampshire

Tue, 28 Oct - Tue, 18 Nov
Austrian Airlines Logo
06:00 - 15:05LHR-BOS
13h 05m1 stop
Austrian Airlines Logo
18:25 - 14:05BOS-LHR
14h 40m1 stop
£211Austrian Airlines
Find Deal
Thu, 11 Sep - Sat, 20 Sep
SWISS Logo
13:05 - 19:55LCY-BOS
11h 50m1 stop
SWISS Logo
21:40 - 13:45BOS-LCY
11h 05m1 stop
£314SWISS
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Mon, 22 Sep - Mon, 20 Oct
TAP AIR PORTUGAL Logo
12:05 - 20:45LGW-BOS
13h 40m1 stop
TAP AIR PORTUGAL Logo
23:15 - 20:25BOS-LGW
16h 10m1 stop
£318TAP AIR PORTUGAL
Find Deal
Sat, 6 Sep - Mon, 29 Sep
TAP AIR PORTUGAL Logo
21:15 - 20:25LGW-BOS
28h 10m1 stop
TAP AIR PORTUGAL Logo
23:15 - 20:25BOS-LGW
16h 10m1 stop
£321TAP AIR PORTUGAL
Find Deal
Sun, 14 Sep - Sun, 21 Sep
TAP AIR PORTUGAL Logo
12:05 - 20:25LGW-BOS
13h 20m1 stop
TAP AIR PORTUGAL Logo
22:55 - 11:20BOS-LGW
31h 25m1 stop
£322TAP AIR PORTUGAL
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Thu, 30 Oct - Tue, 4 Nov
 Logo
12:05 - 21:20LHR-BOS
13h 15m1 stop
 Logo
14:21 - 06:40BOS-LHR
11h 19m1 stop
Sat, 22 Nov - Thu, 4 Dec
Icelandair Logo
11:55 - 10:35LGW-BOS
27h 40m1 stop
Icelandair Logo
11:35 - 10:55BOS-LGW
18h 20m1 stop
£324Icelandair
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Fri, 31 Oct - Thu, 6 Nov
Icelandair Logo
11:55 - 18:45LGW-BOS
10h 50m1 stop
Icelandair Logo
11:35 - 10:55BOS-LGW
18h 20m1 stop
£325Icelandair
Find Deal
Thu, 30 Oct - Tue, 4 Nov
 Logo
12:05 - 21:20LHR-BOS
13h 15m1 stop
 Logo
14:21 - 06:40BOS-LHR
11h 19m1 stop
Sat, 13 Sep - Sat, 20 Sep
Finnair Logo
08:55 - 17:55LHR-PWM
14h 00m2 stops
Finnair Logo
13:09 - 07:50PWM-LHR
13h 41m2 stops
£581Finnair
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from London 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 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 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 to New Hampshire is September, when tickets cost £397 (return) on average. On the other hand, the most expensive months are December and August, when the average cost of return tickets is £579 and £569 respectively.

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

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

If you are looking for a flight deal from London to New Hampshire, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from New Hampshire, Monday is the cheapest day to fly and Saturday is the most expensive.

How far in advance should I book a flight from London 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 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 to New Hampshire, you should book around 3 weeks before departure, which saves you about 35% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.


Good to know - Cheap tickets from London to New Hampshire

Low seasonFebruary
Cheapest flight£207
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 7% lower on average.
Flight from London Luton Airport to Boston

FAQs - booking New Hampshire flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London 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 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 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 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 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 £662 on average. Morning departures are around 4% 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 £940.

Reviews of the top airlines flying from London 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 London 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 1316 reviews
7.5Comfort
8.1Crew
7.6Boarding
6.7Food
6.9Entertainment
Airline reviews

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

6.0 GoodAnonymous, Jul 2025HEL - DFW
Read more Finnair reviews

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

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.

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.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

I had an exit row and so was Comfortable on the long flight.

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

Cabin class types available on flights to New Hampshire

Cabin classes available on flights to New Hampshire. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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