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Cheap flights from London to New Hampshire from £326

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to New Hampshire departing on 23/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from London to New Hampshire

Cheap return flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
18:30 - 14:35
LHR
-
BOS
25h 05m1 stop
TAP AIR PORTUGAL Logo
18:05 - 22:40
BOS
-
LHR
23h 35m1 stop
£424TAP AIR PORTUGAL
Thu, 18 Dec - Sun, 18 Jan
Icelandair Logo
15:40 - 18:50
LGW
-
BOS
32h 10m1 stop
Icelandair Logo
23:30 - 14:40
BOS
-
LGW
10h 10m1 stop
£424Icelandair
Fri, 10 Apr - Wed, 15 Apr
Multiple Airlines Logo
09:00 - 19:42
LHR
-
BOS
15h 42m2 stops
Multiple Airlines Logo
15:35 - 10:05
BOS
-
LHR
14h 30m2 stops
£425Multiple Airlines
Wed, 18 Feb - Thu, 12 Mar
TAP AIR PORTUGAL Logo
21:25 - 20:10
LGW
-
BOS
27h 45m2 stops
TAP AIR PORTUGAL Logo
22:25 - 09:50
BOS
-
LGW
30h 25m1 stop
£425TAP AIR PORTUGAL
Fri, 6 Feb - Sat, 14 Feb
Lufthansa Logo
07:30 - 18:57
LHR
-
BOS
16h 27m2 stops
Lufthansa Logo
14:20 - 15:50
BOS
-
LHR
20h 30m2 stops
£425Lufthansa
Mon, 12 Jan - Mon, 19 Jan
Multiple Airlines Logo
21:20 - 20:55
STN
-
BOS
28h 35m1 stop
Multiple Airlines Logo
22:40 - 16:55
BOS
-
STN
13h 15m1 stop
£425Multiple Airlines
Mon, 26 Jan - Mon, 2 Feb
United Airlines Logo
13:45 - 19:55
LHR
-
BOS
11h 10m1 stop
United Airlines Logo
06:00 - 06:55
BOS
-
LHR
19h 55m1 stop
£426United Airlines
Tue, 5 May - Tue, 12 May
Finnair Logo
10:15 - 18:13
LHR
-
BOS
12h 58m1 stop
Finnair Logo
18:55 - 06:30
BOS
-
LHR
6h 35mdirect
£427Finnair
Thu, 5 Feb - Sun, 8 Feb
United Airlines Logo
07:25 - 17:40
LHR
-
BOS
15h 15m1 stop
United Airlines Logo
06:00 - 06:55
BOS
-
LHR
19h 55m1 stop
£430United Airlines
Mon, 4 May - Wed, 13 May
Finnair Logo
12:20 - 19:50
LHR
-
BOS
12h 30m1 stop
Finnair Logo
20:20 - 07:50
BOS
-
LHR
6h 30mdirect
£431Finnair
Wed, 13 May - Wed, 20 May

United Airlines flights from London to New Hampshire

Our best United Airlines deals on London to New Hampshire flight tickets
United Airlines
5 May
LHR13:45London Heathrow
11h 10m
1 stop
BOS19:55Boston Logan Intl
12 May
BOS06:00Boston Logan Intl
19h 55m
1 stop
LHR06:55London Heathrow
£426
Find similar
United Airlines
4 May
LHR07:25London Heathrow
15h 15m
1 stop
BOS17:40Boston Logan Intl
13 May
BOS06:00Boston Logan Intl
19h 55m
1 stop
LHR06:55London Heathrow
£430
Find similar
United Airlines
22 Jan
LHR09:00London Heathrow
16h 20m
1 stop
BOS20:20Boston Logan Intl
29 Jan
BOS14:20Boston Logan Intl
13h 05m
2 stops
LHR08:25London Heathrow
£444
Find similar

Finnair flights from London to New Hampshire

Our best Finnair deals on London to New Hampshire flight tickets
Finnair
5 Feb
LHR10:15London Heathrow
12h 58m
1 stop
BOS18:13Boston Logan Intl
8 Feb
BOS18:55Boston Logan Intl
6h 35m
LHR06:30London Heathrow
£427
Find similar
Finnair
13 May
LHR12:20London Heathrow
12h 30m
1 stop
BOS19:50Boston Logan Intl
20 May
BOS20:20Boston Logan Intl
6h 30m
LHR07:50London Heathrow
£431
Find similar
Finnair
17 Feb
LHR13:30London Heathrow
7h 35m
BOS16:05Boston Logan Intl
24 Feb
BOS19:15Boston Logan Intl
6h 45m
LHR07:00London Heathrow
£434
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London to New Hampshire that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 9 December 2025.
Use the filters below to find and compare flights from London to New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 18/12

18:30-14:35

1 stop25h 05m

Boston Logan Intl

Sun 18/1

18:05-22:40

1 stop23h 35m

£424

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Fri 10/4

15:40-18:50

1 stop32h 10m

Boston Logan Intl

Wed 15/4

23:30-14:40

1 stop10h 10m

£424

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 18/2

09:00-19:42

2 stops15h 42m

Boston Logan Intl

Thu 12/3

15:35-10:05

2 stops14h 30m

£425

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Fri 6/2

21:25-20:10

2 stops27h 45m

Boston Logan Intl

Sat 14/2

22:25-09:50

1 stop30h 25m

£425

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 12/1

07:30-18:57

2 stops16h 27m

Boston Logan Intl

Mon 19/1

14:20-15:50

2 stops20h 30m

£425

LondonBoston

STN - BOS

STNBOS

London Stansted

Mon 26/1

21:20-20:55

1 stop28h 35m

Boston Logan Intl

Mon 2/2

22:40-16:55

1 stop13h 15m

£425

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 5/5

13:45-19:55

1 stop11h 10m

Boston Logan Intl

Tue 12/5

06:00-06:55

1 stop19h 55m

£426

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 5/2

10:15-18:13

1 stop12h 58m

Boston Logan Intl

Sun 8/2

18:55-06:30

Nonstop6h 35m

£427

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/5

07:25-17:40

1 stop15h 15m

Boston Logan Intl

Wed 13/5

06:00-06:55

1 stop19h 55m

£430

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 13/5

12:20-19:50

1 stop12h 30m

Boston Logan Intl

Wed 20/5

20:20-07:50

Nonstop6h 30m

£431

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to New Hampshire from

How to get the cheapest flight ticket from London to New Hampshire

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to New Hampshire?

The month of September is, on average, the cheapest month to fly to New Hampshire from London, with most prices found around £395. If you’re not able to fly to New Hampshire in September, then February is your next best option. Flight prices from London to New Hampshire during February average around £399.

What is the cheapest day to depart on your flight to New Hampshire?

On average, the least expensive day to fly to New Hampshire from London is on a Thursday. momondo users have found tickets for Thursday departures for as low as £501. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to New Hampshire is Sunday, with ticket prices averaging around £572.

What is the cheapest time of day to depart on your flight to New Hampshire?

Our most recent data shows that the best time of day to fly to New Hampshire is at midday. Flights from London to New Hampshire during this time can be as low as £497. Flights in the evening are often more expensive, with an average ticket price of £690.

How far in advance should I book a flight to New Hampshire?

You are more likely to see cheaper flights to New Hampshire from London when booking weeks ahead of your departure date. In general, you can expect to find flights to New Hampshire for around £465 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to New Hampshire from London for as low as £427 on momondo.

Can stopping save me money on London to New Hampshire flights?

You could potentially save up to 81% on your flight if you consider stops on a London to New Hampshire flight.

Cheap London to New Hampshire flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to New Hampshire

Fastest flight time

7h 25m

Direct flights

Every day

Airports in New Hampshire

1 airport
The fastest flight from London to New Hampshire takes 7h 25m
Direct flights go from London to New Hampshire every day.
There is 1 airport near New Hampshire: Boston Logan Intl (BOS)
Search flight deals

  • When did momondo last update prices for flights from London to New Hampshire?

    Prices for flights from London to New Hampshire are refreshed on a daily basis.

  • How many operators does momondo search for flights from London to New Hampshire?

  • How old do you have to be to fly from London to New Hampshire?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to New Hampshire.

  • What documentation or ID do you need to fly to New Hampshire?

    The travel and health documents you'll need for your trip to New Hampshire may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at New Hampshire. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from London to New Hampshire

Compare and see reviews for airlines that fly from London to New Hampshire with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £766Free CancellationRating
7.0
588 reviews
Search Icelandair flights

Why use momondo?

Why should I use momondo to find a flight deal from London to New Hampshire?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to New Hampshire. momondo saves you time and could save you money on your trip.

Can I find flights from London to New Hampshire with flexible booking policies on momondo?

Flights from London to New Hampshire with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to New Hampshire?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to New Hampshire.

I’m not ready to book a flight from London to New Hampshire right now. Can momondo alert me if prices change?

If you are simply researching potential flights to New Hampshire, momondo offers a useful price alert feature which will track prices for flights to New Hampshire from London and alert you when they change.

An easier way to manage your New Hampshire trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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