£305 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 6/12. 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 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

Thu, 4 Dec - Sun, 7 Dec
TAP AIR PORTUGAL Logo
10:40 - 20:10LGW-BOS
14h 30m1 stop
TAP AIR PORTUGAL Logo
18:05 - 15:45BOS-LGW
16h 40m1 stop
£338TAP AIR PORTUGAL
Find Deal
Thu, 16 Apr - Mon, 20 Apr
TAP AIR PORTUGAL Logo
10:35 - 20:45LGW-BOS
15h 10m1 stop
TAP AIR PORTUGAL Logo
23:15 - 20:25BOS-LGW
16h 10m1 stop
£338TAP AIR PORTUGAL
Find Deal
Thu, 4 Dec - Mon, 8 Dec
TAP AIR PORTUGAL Logo
08:15 - 20:10LHR-BOS
16h 55m1 stop
TAP AIR PORTUGAL Logo
18:05 - 17:30BOS-LHR
18h 25m1 stop
£340TAP AIR PORTUGAL
Find Deal
Thu, 4 Dec - Sun, 7 Dec
TAP AIR PORTUGAL Logo
10:40 - 20:10LGW-BOS
14h 30m1 stop
TAP AIR PORTUGAL Logo
22:45 - 15:45BOS-LGW
12h 00m1 stop
£340TAP AIR PORTUGAL
Find Deal
Fri, 14 Nov - Wed, 19 Nov
Icelandair Logo
11:55 - 10:35LGW-BOS
27h 40m1 stop
Icelandair Logo
19:50 - 10:55BOS-LGW
10h 05m1 stop
£361Icelandair
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Wed, 26 Nov - Fri, 5 Dec
Multiple Airlines Logo
06:30 - 17:50STN-BOS
16h 20m2 stops
Multiple Airlines Logo
19:50 - 18:20BOS-STN
17h 30m2 stops
£361Multiple Airlines
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Wed, 26 Nov - Fri, 5 Dec
Multiple Airlines Logo
06:50 - 17:50LTN-BOS
16h 00m2 stops
Multiple Airlines Logo
19:50 - 16:15BOS-LTN
15h 25m2 stops
£361Multiple Airlines
Find Deal
Sun, 23 Nov - Sat, 6 Dec
Icelandair Logo
11:55 - 17:50LGW-BOS
10h 55m1 stop
Icelandair Logo
19:50 - 10:55BOS-LGW
10h 05m1 stop
£362Icelandair
Find Deal
Tue, 27 Jan - Tue, 3 Feb
LEVEL Logo
09:55 - 20:55LHR-BOS
16h 00m1 stop
LEVEL Logo
22:40 - 09:10BOS-LHR
29h 30m1 stop
£384LEVEL
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Sun, 14 Dec - Sun, 21 Dec
Finnair Logo
13:30 - 23:00LHR-PWM
14h 30m2 stops
Finnair Logo
12:37 - 06:35PWM-LHR
12h 58m1 stop
£877Finnair
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 £399 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is £585 and £555 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 2 weeks before departure, which saves you about 35% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know - Cheap tickets from London to New Hampshire

Low seasonFebruary
Cheapest flight£305
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from London Stansted 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 £508 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 £722.

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 1333 reviews
8.1Crew
7.4Comfort
6.7Food
6.9Entertainment
7.6Boarding
Airline reviews

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

8.0 ExcellentDavid, Oct 2025LHR - BWI
Read more Finnair reviews

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

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

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

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.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

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!

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

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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