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Cheap flights from New Hampshire to London from £147

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from New Hampshire to London departing on 1/10. 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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Cheap return flights

Scandinavian Airlines Logo
17:35 - 16:00BOS-LHR
17h 25m1 stop
Scandinavian Airlines Logo
13:55 - 15:50LHR-BOS
30h 55m2 stops
£332Scandinavian Airlines
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Fri, 14 Nov - Sun, 16 Nov
TAP AIR PORTUGAL Logo
18:05 - 12:40BOS-LHR
13h 35m1 stop
TAP AIR PORTUGAL Logo
19:55 - 14:35LHR-BOS
23h 40m1 stop
£333TAP AIR PORTUGAL
Find Deal
Mon, 3 Nov - Sat, 8 Nov
SWISS Logo
21:50 - 08:05BOS-LHR
29h 15m1 stop
SWISS Logo
07:00 - 20:20LHR-BOS
18h 20m2 stops
£334SWISS
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Mon, 1 Dec - Thu, 4 Dec
LEVEL Logo
22:40 - 18:00BOS-LHR
14h 20m1 stop
LEVEL Logo
18:50 - 20:55LHR-BOS
31h 05m1 stop
£335LEVEL
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Thu, 15 Jan - Mon, 19 Jan
SWISS Logo
21:50 - 08:15BOS-LHR
53h 25m2 stops
SWISS Logo
06:00 - 20:20LHR-BOS
19h 20m1 stop
£337SWISS
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Mon, 3 Nov - Fri, 7 Nov
Scandinavian Airlines Logo
17:35 - 16:25BOS-LHR
41h 50m2 stops
Scandinavian Airlines Logo
06:40 - 15:50LHR-BOS
14h 10m2 stops
£337Scandinavian Airlines
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Thu, 6 Nov - Sun, 9 Nov
Virgin Atlantic Logo
22:45 - 10:30BOS-LHR
6h 45mdirect
Virgin Atlantic Logo
09:00 - 15:05LHR-BOS
11h 05m1 stop
£338Virgin Atlantic
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Wed, 15 Oct - Wed, 22 Oct
Virgin Atlantic Logo
20:00 - 07:50BOS-LHR
6h 50mdirect
Virgin Atlantic Logo
09:00 - 16:20LHR-BOS
12h 20m1 stop
£339Virgin Atlantic
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Tue, 4 Nov - Tue, 11 Nov
Air Canada Logo
15:40 - 07:10BOS-LHR
10h 30m1 stop
Air Canada Logo
09:00 - 19:12LHR-BOS
15h 12m2 stops
£343Air Canada
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Wed, 5 Nov - Tue, 18 Nov
Air Canada Logo
08:00 - 06:30PWM-LHR
17h 30m3 stops
Air Canada Logo
08:30 - 23:13LHR-PWM
19h 43m3 stops
£564Air Canada
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Wed, 8 Oct - Wed, 15 Oct

Scandinavian Airlines flights from New Hampshire to London Heathrow Airport

Our best Scandinavian Airlines deals on New Hampshire to London Heathrow Airport flight tickets
Scandinavian Airlines
14 Nov
BOS17:35Boston Logan Intl
17h 25m
1 stop
LHR16:00London Heathrow
16 Nov
LHR13:55London Heathrow
30h 55m
2 stops
BOS15:50Boston Logan Intl
£332
Find similar
Scandinavian Airlines
6 Nov
BOS17:35Boston Logan Intl
41h 50m
2 stops
LHR16:25London Heathrow
9 Nov
LHR06:40London Heathrow
14h 10m
2 stops
BOS15:50Boston Logan Intl
£337
Find similar
Scandinavian Airlines
4 Nov
BOS17:35Boston Logan Intl
35h 00m
2 stops
LHR09:35London Heathrow
7 Nov
LHR06:40London Heathrow
38h 10m
2 stops
BOS15:50Boston Logan Intl
£348
Find similar

TAP AIR PORTUGAL flights from New Hampshire to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on New Hampshire to London Heathrow Airport flight tickets
TAP AIR PORTUGAL
3 Nov
BOS18:05Boston Logan Intl
13h 35m
1 stop
LHR12:40London Heathrow
8 Nov
LHR19:55London Heathrow
23h 40m
1 stop
BOS14:35Boston Logan Intl
£333
Find similar
TAP AIR PORTUGAL
29 Oct
BOS19:05Boston Logan Intl
12h 20m
1 stop
LHR11:25London Heathrow
6 Nov
LHR06:00London Heathrow
19h 10m
1 stop
BOS20:10Boston Logan Intl
£340
Find similar
TAP AIR PORTUGAL
6 Nov
BOS18:05Boston Logan Intl
12h 20m
1 stop
LHR11:25London Heathrow
8 Nov
LHR12:25London Heathrow
12h 45m
1 stop
BOS20:10Boston Logan Intl
£342
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from New Hampshire to London Heathrow Airport 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 12 September 2025.
Use the filters below to find and compare flights from New Hampshire to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 14/11

17:35-16:00

1 stop17h 25m

London Heathrow

Sun 16/11

13:55-15:50

2 stops30h 55m

£332

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 3/11

18:05-12:40

1 stop13h 35m

London Heathrow

Sat 8/11

19:55-14:35

1 stop23h 40m

£333

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 1/12

21:50-08:05

1 stop29h 15m

London Heathrow

Thu 4/12

07:00-20:20

2 stops18h 20m

£334

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 15/1

22:40-18:00

1 stop14h 20m

London Heathrow

Mon 19/1

18:50-20:55

1 stop31h 05m

£335

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 3/11

21:50-08:15

2 stops53h 25m

London Heathrow

Fri 7/11

06:00-20:20

1 stop19h 20m

£337

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 6/11

17:35-16:25

2 stops41h 50m

London Heathrow

Sun 9/11

06:40-15:50

2 stops14h 10m

£337

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 15/10

22:45-10:30

Nonstop6h 45m

London Heathrow

Wed 22/10

09:00-15:05

1 stop11h 05m

£338

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 4/11

20:00-07:50

Nonstop6h 50m

London Heathrow

Tue 11/11

09:00-16:20

1 stop12h 20m

£339

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 5/11

15:40-07:10

1 stop10h 30m

London Heathrow

Tue 18/11

09:00-19:12

2 stops15h 12m

£343

PortlandLondon

PWM - LHR

PWMLHR

Portland

Wed 8/10

08:00-06:30

3 stops17h 30m

London Heathrow

Wed 15/10

08:30-23:13

3 stops19h 43m

£564

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from New Hampshire to London Heathrow Airport

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 London Heathrow Airport?

In general, January is the cheapest month to fly from New Hampshire to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £413. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from New Hampshire averaging around £428.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from New Hampshire is on a Monday. momondo users have found tickets for Monday departures for as low as £471. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £564.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from New Hampshire to London Heathrow Airport in the evening for as low as £494. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £619 on average. Flights to London Heathrow Airport from New Hampshire in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from New Hampshire when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport 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 London Heathrow Airport from New Hampshire for as low as £443 on momondo.

Cheap New Hampshire to London Heathrow Airport flight deals and tips

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

Fastest flight time

6h 30m

Direct flights

Every day
The fastest flight from New Hampshire to London Heathrow Airport takes 6h 30m
Direct flights go from New Hampshire to London Heathrow Airport every day.
Search flight deals

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

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

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

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

    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 New Hampshire to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Luton
Milton Keynes
Maidstone
Northampton
Gatwick
Slough
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Swanage
Poole
Colchester
Worthing
Salisbury
Dover

Why use momondo?

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

Finding the right flight to London from New Hampshire is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

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

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

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 New Hampshire to London.

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

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

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