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Cheap flights from London Heathrow Airport to New Hampshire from £319

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 Heathrow Airport to New Hampshire departing on 20/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from London Heathrow Airport to New Hampshire

Cheap return flights

Enter your travel dates to find the best prices.
Iberia Logo
11:00 - 13:35
LHR
-
BOS
7h 35mdirect
Iberia Logo
20:20 - 07:50
BOS
-
LHR
6h 30mdirect
£415Iberia
Mon, 6 Apr - Mon, 20 Apr
American Airlines Logo
20:10 - 22:35
LHR
-
BOS
7h 25mdirect
American Airlines Logo
20:20 - 07:50
BOS
-
LHR
6h 30mdirect
£416American Airlines
Tue, 7 Apr - Wed, 22 Apr
British Airways Logo
13:30 - 16:15
LHR
-
BOS
7h 45mdirect
British Airways Logo
20:20 - 07:50
BOS
-
LHR
6h 30mdirect
£417British Airways
Sat, 17 Jan - Fri, 24 Apr
British Airways Logo
11:00 - 13:35
LHR
-
BOS
7h 35mdirect
British Airways Logo
21:50 - 09:35
BOS
-
LHR
6h 45mdirect
£418British Airways
Thu, 23 Apr - Thu, 30 Apr
Scandinavian Airlines Logo
19:30 - 15:50
LHR
-
BOS
25h 20m1 stop
Scandinavian Airlines Logo
17:35 - 09:20
BOS
-
LHR
10h 45m1 stop
£418Scandinavian Airlines
Mon, 12 Jan - Thu, 15 Jan
United Airlines Logo
15:20 - 21:54
LHR
-
BOS
11h 34m1 stop
United Airlines Logo
06:00 - 20:40
BOS
-
LHR
9h 40m1 stop
£420United Airlines
Wed, 8 Apr - Wed, 22 Apr
Multiple Airlines Logo
13:00 - 23:57
LHR
-
BOS
15h 57m2 stops
Multiple Airlines Logo
15:35 - 11:50
BOS
-
LHR
15h 15m2 stops
£422Multiple Airlines
Sat, 14 Feb - Sat, 21 Feb
United Airlines Logo
12:05 - 18:51
LHR
-
MHT
35h 46m2 stops
United Airlines Logo
14:17 - 08:25
MHT
-
LHR
13h 08m2 stops
£560United Airlines
Wed, 4 Feb - Wed, 11 Feb
Multiple Airlines Logo
10:15 - 22:54
LHR
-
PWM
17h 39m1 stop
Multiple Airlines Logo
07:00 - 06:35
PWM
-
LHR
18h 35m1 stop
£567Multiple Airlines
Thu, 5 Feb - Thu, 12 Feb
Scandinavian Airlines Logo
06:40 - 00:20
LHR
-
PWM
22h 40m3 stops
Scandinavian Airlines Logo
14:35 - 16:25
PWM
-
LHR
20h 50m3 stops
£875Scandinavian Airlines
Thu, 5 Feb - Thu, 12 Feb

Finnair flights from London Heathrow Airport to New Hampshire

Our best Finnair deals on London Heathrow Airport to New Hampshire flight tickets
Finnair
11 Jan
LHR18:10London Heathrow
33h 46m
2 stops
BOS22:56Boston Logan Intl
19 Jan
BOS19:35Boston Logan Intl
20h 05m
2 stops
LHR20:40London Heathrow
£425
Find similar
Finnair
29 Dec
LHR13:30London Heathrow
7h 30m
BOS16:00Boston Logan Intl
8 Jan
BOS12:16Boston Logan Intl
13h 04m
1 stop
LHR06:20London Heathrow
£427
Find similar
Finnair
22 Jan
LHR10:20London Heathrow
17h 36m
2 stops
BOS22:56Boston Logan Intl
26 Jan
BOS19:35Boston Logan Intl
9h 05m
1 stop
LHR09:40London Heathrow
£428
Find similar

TAP AIR PORTUGAL flights from London Heathrow Airport to New Hampshire

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to New Hampshire flight tickets
TAP AIR PORTUGAL
24 Dec
LHR18:30London Heathrow
25h 05m
1 stop
BOS14:35Boston Logan Intl
8 Apr
BOS22:30Boston Logan Intl
14h 15m
2 stops
LHR17:45London Heathrow
£427
Find similar
TAP AIR PORTUGAL
25 Mar
LHR06:00London Heathrow
13h 35m
1 stop
BOS15:35Boston Logan Intl
8 Apr
BOS22:30Boston Logan Intl
14h 15m
2 stops
LHR17:45London Heathrow
£429
Find similar
TAP AIR PORTUGAL
25 Dec
LHR19:55London Heathrow
23h 40m
1 stop
BOS14:35Boston Logan Intl
8 Jan
BOS22:45Boston Logan Intl
13h 45m
1 stop
LHR17:30London Heathrow
£436
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport 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 23 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 6/4

11:00-13:35

Nonstop7h 35m

Boston Logan Intl

Mon 20/4

20:20-07:50

Nonstop6h 30m

£415

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 7/4

20:10-22:35

Nonstop7h 25m

Boston Logan Intl

Wed 22/4

20:20-07:50

Nonstop6h 30m

£416

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 17/1

13:30-16:15

Nonstop7h 45m

Boston Logan Intl

Fri 24/4

20:20-07:50

Nonstop6h 30m

£417

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 23/4

11:00-13:35

Nonstop7h 35m

Boston Logan Intl

Thu 30/4

21:50-09:35

Nonstop6h 45m

£418

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 12/1

19:30-15:50

1 stop25h 20m

Boston Logan Intl

Thu 15/1

17:35-09:20

1 stop10h 45m

£418

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 8/4

15:20-21:54

1 stop11h 34m

Boston Logan Intl

Wed 22/4

06:00-20:40

1 stop9h 40m

£420

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 14/2

13:00-23:57

2 stops15h 57m

Boston Logan Intl

Sat 21/2

15:35-11:50

2 stops15h 15m

£422

LondonManchester

LHR - MHT

LHRMHT

London Heathrow

Wed 4/2

12:05-18:51

2 stops35h 46m

Manchester

Wed 11/2

14:17-08:25

2 stops13h 08m

£560

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/2

10:15-22:54

1 stop17h 39m

Portland

Thu 12/2

07:00-06:35

1 stop18h 35m

£567

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 5/2

06:40-00:20

3 stops22h 40m

Portland

Thu 12/2

14:35-16:25

3 stops20h 50m

£875

Flights are sorted by cheapest return flights first.

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

How to get the cheapest flight ticket from London Heathrow Airport 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 February is, on average, the cheapest month to fly to New Hampshire from London Heathrow Airport, with most prices found around £400. If you’re not able to fly to New Hampshire in February, then September is your next best option. Flight prices from London Heathrow Airport to New Hampshire during September average around £402.

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 Heathrow Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £504. 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 £568.

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 Heathrow Airport to New Hampshire during this time can be as low as £500. Flights in the evening are often more expensive, with an average ticket price of £680.

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 Heathrow Airport 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 Heathrow Airport for as low as £424 on momondo.

Cheap London Heathrow Airport to New Hampshire flight deals and tips

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

Fastest flight time

7h 25m

Direct flights

Every day

Airports in New Hampshire

52 airports
The fastest flight from London Heathrow Airport to New Hampshire takes 7h 25m
Direct flights go from London Heathrow Airport to New Hampshire every day.
There are 52 airports in New Hampshire. From London Heathrow Airport there are direct flights to Boston Logan Intl (BOS).
Search flight deals

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

    Prices for flights from London Heathrow Airport to New Hampshire refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport 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 Heathrow Airport to New Hampshire

Compare and see reviews for airlines that fly from London Heathrow Airport to New Hampshire with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom £760Free CancellationRating
7.0
592 reviews
Search Icelandair flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to New Hampshire from London.

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

Yes. All flights to New Hampshire from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for London to New Hampshire flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of London to New Hampshire flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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.
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