Latest deals
Insights
FAQs
Price Alerts

Cheap flights from New Hampshire to London from £161

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 20/7. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from New Hampshire to London

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
20:25 - 09:15
BOS
-
LHR
8h 50m
1 stop
Aer Lingus Logo
10:00 - 17:50
LHR
-
BOS
11h 50m
1 stop
£358Aer Lingus
Fri, 20 Mar - Thu, 26 Mar
Icelandair Logo
20:50 - 11:55
BOS
-
LHR
10h 05m
1 stop
Icelandair Logo
21:25 - 18:50
LHR
-
BOS
26h 25m
1 stop
£359Icelandair
Sun, 5 Apr - Mon, 13 Apr
Multiple Airlines Logo
18:40 - 20:35
BOS
-
LHR
20h 55m
1 stop
Multiple Airlines Logo
06:00 - 14:05
LHR
-
BOS
13h 05m
1 stop
£359Multiple Airlines
Sat, 14 Feb - Fri, 20 Feb
Multiple Airlines Logo
18:40 - 20:35
BOS
-
LHR
20h 55m
1 stop
Multiple Airlines Logo
19:25 - 14:05
LHR
-
BOS
23h 40m
1 stop
£360Multiple Airlines
Sat, 21 Feb - Sat, 28 Feb
United Airlines Logo
15:10 - 20:35
PWM
-
LHR
24h 25m
1 stop
United Airlines Logo
06:50 - 18:25
LHR
-
PWM
15h 35m
2 stops
£456United Airlines
Fri, 27 Feb - Thu, 12 Mar
Delta Logo
16:30 - 20:10
ORH
-
LHR
22h 40m
1 stop
Delta Logo
06:30 - 15:33
LHR
-
ORH
38h 03m
2 stops
£458Delta
Fri, 27 Feb - Tue, 3 Mar
United Airlines Logo
19:28 - 10:50
MHT
-
LHR
10h 22m
1 stop
United Airlines Logo
06:50 - 12:44
LHR
-
MHT
34h 54m
2 stops
£463United Airlines
Wed, 4 Mar - Sun, 8 Mar
Delta Logo
06:30 - 06:20
PWM
-
LHR
18h 50m
1 stop
Delta Logo
10:00 - 23:59
LHR
-
PWM
17h 59m
2 stops
£464Delta
Mon, 2 Mar - Mon, 9 Mar
Air Canada Logo
19:07 - 20:35
PWM
-
LHR
45h 28m
2 stops
Air Canada Logo
13:25 - 23:04
LHR
-
PWM
37h 39m
2 stops
£474Air Canada
Mon, 16 Mar - Mon, 23 Mar
Air Canada Logo
06:00 - 06:30
PWM
-
LHR
19h 30m
2 stops
Air Canada Logo
13:25 - 22:18
LHR
-
PWM
36h 53m
2 stops
£476Air Canada
Fri, 27 Feb - Thu, 12 Mar

Aer Lingus flights from New Hampshire to London Heathrow Airport

Our best Aer Lingus deals on New Hampshire to London Heathrow Airport flight tickets
Aer Lingus
20 Mar
BOS20:25Boston Logan Intl
8h 50m
1 stop
LHR09:15London Heathrow
26 Mar
LHR10:00London Heathrow
11h 50m
1 stop
BOS17:50Boston Logan Intl
£358
Aer Lingus
28 Feb
BOS21:15Boston Logan Intl
11h 10m
1 stop
LHR13:25London Heathrow
7 Mar
LHR10:00London Heathrow
11h 50m
1 stop
BOS16:50Boston Logan Intl
£361
Aer Lingus
20 Feb
BOS19:25Boston Logan Intl
18h 25m
1 stop
LHR18:50London Heathrow
25 Feb
LHR10:00London Heathrow
11h 50m
1 stop
BOS16:50Boston Logan Intl
£373

American Airlines flights from New Hampshire to London Heathrow Airport

Our best American Airlines deals on New Hampshire to London Heathrow Airport flight tickets
American Airlines
28 Jul
PWM11:01Portland
14h 49m
1 stop
LHR06:50London Heathrow
25 Aug
LHR12:30London Heathrow
15h 54m
1 stop
PWM23:24Portland
£503
American Airlines
16 Mar
ORH13:44Worcester
12h 51m
1 stop
LHR06:35London Heathrow
23 Mar
LHR19:10London Heathrow
22h 09m
2 stops
ORH13:19Worcester
£521
American Airlines
14 Feb
ORH13:30Worcester
12h 05m
1 stop
LHR06:35London Heathrow
22 Feb
LHR15:45London Heathrow
26h 20m
2 stops
ORH13:05Worcester
£678

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 1 February 2026.
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 20/3

20:25-09:15

1 stop8h 50m

London Heathrow

Thu 26/3

10:00-17:50

1 stop11h 50m

£358

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 5/4

20:50-11:55

1 stop10h 05m

London Heathrow

Mon 13/4

21:25-18:50

1 stop26h 25m

£359

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 14/2

18:40-20:35

1 stop20h 55m

London Heathrow

Fri 20/2

06:00-14:05

1 stop13h 05m

£359

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 21/2

18:40-20:35

1 stop20h 55m

London Heathrow

Sat 28/2

19:25-14:05

1 stop23h 40m

£360

PortlandLondon

PWM - LHR

PWMLHR

Portland

Fri 27/2

15:10-20:35

1 stop24h 25m

London Heathrow

Thu 12/3

06:50-18:25

2 stops15h 35m

£456

WorcesterLondon

ORH - LHR

ORHLHR

Worcester

Fri 27/2

16:30-20:10

1 stop22h 40m

London Heathrow

Tue 3/3

06:30-15:33

2 stops38h 03m

£458

ManchesterLondon

MHT - LHR

MHTLHR

Manchester

Wed 4/3

19:28-10:50

1 stop10h 22m

London Heathrow

Sun 8/3

06:50-12:44

2 stops34h 54m

£463

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 2/3

06:30-06:20

1 stop18h 50m

London Heathrow

Mon 9/3

10:00-23:59

2 stops17h 59m

£464

PortlandLondon

PWM - LHR

PWMLHR

Portland

Mon 16/3

19:07-20:35

2 stops45h 28m

London Heathrow

Mon 23/3

13:25-23:04

2 stops37h 39m

£474

PortlandLondon

PWM - LHR

PWMLHR

Portland

Fri 27/2

06:00-06:30

2 stops19h 30m

London Heathrow

Thu 12/3

13:25-22:18

2 stops36h 53m

£476

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to London from

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, October 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 £390. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from New Hampshire averaging around £416.

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 £455. 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 £536.

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 £493. 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 morning when prices are £523 on average. Flights to London Heathrow Airport from New Hampshire in the morning 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 £462 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 £445 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
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Stratford-upon-Avon
Swindon
Southend-on-Sea
Canterbury
Ipswich
Ilford
Poole
Guildford
Chelmsford
Hayes
Dover
Swanage
Folkestone

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.

An easier way to manage your London Heathrow Airport 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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 3/3
Tue 10/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London