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Cheap flights from London Heathrow Airport to New Hampshire from £309

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 23/3. 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.
TAP AIR PORTUGAL Logo
06:00 - 20:10LHR-BOS
19h 10m1 stop
TAP AIR PORTUGAL Logo
22:45 - 17:30BOS-LHR
13h 45m1 stop
£340TAP AIR PORTUGAL
Find Deal
Thu, 20 Nov - Sun, 30 Nov
TAP AIR PORTUGAL Logo
06:00 - 21:10LHR-BOS
19h 10m1 stop
TAP AIR PORTUGAL Logo
19:05 - 21:35BOS-LHR
22h 30m1 stop
£343TAP AIR PORTUGAL
Find Deal
Thu, 19 Mar - Mon, 23 Mar
Icelandair Logo
12:15 - 10:35LHR-BOS
27h 20m1 stop
Icelandair Logo
19:50 - 10:50BOS-LHR
10h 00m1 stop
£366Icelandair
Find Deal
Tue, 25 Nov - Tue, 9 Dec
Icelandair Logo
12:15 - 10:35LHR-BOS
27h 20m1 stop
Icelandair Logo
11:35 - 10:50BOS-LHR
18h 15m1 stop
£369Icelandair
Find Deal
Sat, 15 Nov - Sun, 30 Nov
Scandinavian Airlines Logo
10:20 - 20:10LHR-BOS
14h 50m1 stop
Scandinavian Airlines Logo
17:35 - 09:20BOS-LHR
10h 45m1 stop
£380Scandinavian Airlines
Find Deal
Sat, 22 Nov - Thu, 15 Jan
Scandinavian Airlines Logo
07:05 - 15:50LHR-BOS
13h 45m2 stops
Scandinavian Airlines Logo
17:35 - 09:20BOS-LHR
10h 45m1 stop
£381Scandinavian Airlines
Find Deal
Fri, 23 Jan - Sun, 1 Feb
Air Canada Logo
09:00 - 21:27LHR-BOS
17h 27m2 stops
Air Canada Logo
10:15 - 07:10BOS-LHR
15h 55m1 stop
£389Air Canada
Find Deal
Wed, 3 Dec - Wed, 10 Dec
United Airlines Logo
13:45 - 13:57LHR-MHT
53h 12m2 stops
United Airlines Logo
19:27 - 05:55MHT-LHR
29h 28m2 stops
£568United Airlines
Find Deal
Wed, 3 Dec - Sun, 7 Dec
United Airlines Logo
06:50 - 18:50LHR-PWM
17h 00m2 stops
United Airlines Logo
14:31 - 06:40PWM-LHR
11h 09m1 stop
£572United Airlines
Find Deal
Mon, 12 Jan - Mon, 19 Jan
Air Canada Logo
09:00 - 23:09LHR-PWM
43h 09m2 stops
Air Canada Logo
06:00 - 06:30PWM-LHR
19h 30m2 stops
£602Air Canada
Find Deal
Mon, 1 Dec - Mon, 8 Dec

Icelandair flights from London Heathrow Airport to New Hampshire

Our best Icelandair deals on London Heathrow Airport to New Hampshire flight tickets
Icelandair
25 Nov
LHR12:15London Heathrow
27h 20m
1 stop
BOS10:35Boston Logan Intl
9 Dec
BOS19:50Boston Logan Intl
10h 00m
1 stop
LHR10:50London Heathrow
£366
Find similar
Icelandair
15 Nov
LHR12:15London Heathrow
27h 20m
1 stop
BOS10:35Boston Logan Intl
30 Nov
BOS11:35Boston Logan Intl
18h 15m
1 stop
LHR10:50London Heathrow
£369
Find similar
Icelandair
14 Nov
LHR12:15London Heathrow
27h 20m
1 stop
BOS10:35Boston Logan Intl
5 Dec
BOS19:50Boston Logan Intl
10h 00m
1 stop
LHR10:50London Heathrow
£369
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
20 Nov
LHR06:00London Heathrow
19h 10m
1 stop
BOS20:10Boston Logan Intl
30 Nov
BOS22:45Boston Logan Intl
13h 45m
1 stop
LHR17:30London Heathrow
£340
Find similar
TAP AIR PORTUGAL
19 Mar
LHR06:00London Heathrow
19h 10m
1 stop
BOS21:10Boston Logan Intl
23 Mar
BOS19:05Boston Logan Intl
22h 30m
1 stop
LHR21:35London Heathrow
£343
Find similar
TAP AIR PORTUGAL
4 Dec
LHR19:55London Heathrow
23h 40m
1 stop
BOS14:35Boston Logan Intl
11 Dec
BOS22:45Boston Logan Intl
13h 45m
1 stop
LHR17:30London Heathrow
£343
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 5 November 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

Thu 20/11

06:00-20:10

1 stop19h 10m

Boston Logan Intl

Sun 30/11

22:45-17:30

1 stop13h 45m

£340

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/3

06:00-21:10

1 stop19h 10m

Boston Logan Intl

Mon 23/3

19:05-21:35

1 stop22h 30m

£343

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 25/11

12:15-10:35

1 stop27h 20m

Boston Logan Intl

Tue 9/12

19:50-10:50

1 stop10h 00m

£366

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 15/11

12:15-10:35

1 stop27h 20m

Boston Logan Intl

Sun 30/11

11:35-10:50

1 stop18h 15m

£369

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 22/11

10:20-20:10

1 stop14h 50m

Boston Logan Intl

Thu 15/1

17:35-09:20

1 stop10h 45m

£380

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 23/1

07:05-15:50

2 stops13h 45m

Boston Logan Intl

Sun 1/2

17:35-09:20

1 stop10h 45m

£381

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 3/12

09:00-21:27

2 stops17h 27m

Boston Logan Intl

Wed 10/12

10:15-07:10

1 stop15h 55m

£389

LondonManchester

LHR - MHT

LHRMHT

London Heathrow

Wed 3/12

13:45-13:57

2 stops53h 12m

Manchester

Sun 7/12

19:27-05:55

2 stops29h 28m

£568

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 12/1

06:50-18:50

2 stops17h 00m

Portland

Mon 19/1

14:31-06:40

1 stop11h 09m

£572

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Mon 1/12

09:00-23:09

2 stops43h 09m

Portland

Mon 8/12

06:00-06:30

2 stops19h 30m

£602

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 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 £411. 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 £416.

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 £512. 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 £596.

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 £511. Flights in the evening are often more expensive, with an average ticket price of £725.

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 £475 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 £439 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

1 airport
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 is 1 airport near New Hampshire: 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
FinnairPriceFrom £473Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
IcelandairPriceFrom £781Free CancellationRating
7.1
571 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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