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Cheap flights from London Heathrow Airport to New Hampshire from $427

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 4/23. 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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Find the cheapest flights from London Heathrow Airport to New Hampshire

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
11:00 am - 1:35 pm
LHR
-
BOS
7h 35mnonstop
Iberia Logo
8:20 pm - 7:50 am
BOS
-
LHR
6h 30mnonstop
$558Iberia
Mon, Apr 6 - Mon, Apr 20
American Airlines Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
American Airlines Logo
8:20 pm - 7:50 am
BOS
-
LHR
6h 30mnonstop
$559American Airlines
Tue, Apr 7 - Wed, Apr 22
British Airways Logo
1:30 pm - 4:15 pm
LHR
-
BOS
7h 45mnonstop
British Airways Logo
8:20 pm - 7:50 am
BOS
-
LHR
6h 30mnonstop
$560British Airways
Sat, Jan 17 - Fri, Apr 24
British Airways Logo
11:00 am - 1:35 pm
LHR
-
BOS
7h 35mnonstop
British Airways Logo
9:50 pm - 9:35 am
BOS
-
LHR
6h 45mnonstop
$561British Airways
Thu, Apr 23 - Thu, Apr 30
Scandinavian Airlines Logo
7:30 pm - 3:50 pm
LHR
-
BOS
25h 20m1 stop
Scandinavian Airlines Logo
5:35 pm - 9:20 am
BOS
-
LHR
10h 45m1 stop
$562Scandinavian Airlines
Mon, Jan 12 - Thu, Jan 15
JetBlue Logo
9:20 am - 12:16 pm
LHR
-
BOS
7h 56mnonstop
JetBlue Logo
7:12 pm - 6:55 am
BOS
-
LHR
6h 43mnonstop
$563JetBlue
Mon, Feb 16 - Thu, Feb 19
United Airlines Logo
3:20 pm - 9:54 pm
LHR
-
BOS
11h 34m1 stop
United Airlines Logo
6:00 am - 8:40 pm
BOS
-
LHR
9h 40m1 stop
$564United Airlines
Wed, Apr 8 - Wed, Apr 22
British Airways Logo
8:10 pm - 10:35 pm
LHR
-
BOS
7h 25mnonstop
British Airways Logo
8:20 pm - 7:50 am
BOS
-
LHR
6h 30mnonstop
$565British Airways
Thu, Apr 16 - Wed, Apr 22
United Airlines Logo
12:05 pm - 6:51 pm
LHR
-
MHT
35h 46m2 stops
United Airlines Logo
2:17 pm - 8:25 am
MHT
-
LHR
13h 08m2 stops
$752United Airlines
Wed, Feb 4 - Wed, Feb 11
Scandinavian Airlines Logo
6:40 am - 12:20 am
LHR
-
PWM
22h 40m3 stops
Scandinavian Airlines Logo
2:35 pm - 4:25 pm
PWM
-
LHR
20h 50m3 stops
$1,175Scandinavian Airlines
Thu, Feb 5 - Thu, Feb 12

Finnair flights from London Heathrow Airport to New Hampshire

Our best Finnair deals on London Heathrow Airport to New Hampshire flight tickets
Finnair
Jan 11
LHR6:10 pmLondon Heathrow
33h 46m
2 stops
BOS10:56 pmBoston Logan Intl
Jan 19
BOS7:35 pmBoston Logan Intl
20h 05m
2 stops
LHR8:40 pmLondon Heathrow
$571
Find similar
Finnair
Dec 29
LHR1:30 pmLondon Heathrow
7h 30m
BOS4:00 pmBoston Logan Intl
Jan 8
BOS12:16 pmBoston Logan Intl
13h 04m
1 stop
LHR6:20 amLondon Heathrow
$573
Find similar
Finnair
Jan 22
LHR10:20 amLondon Heathrow
17h 36m
2 stops
BOS10:56 pmBoston Logan Intl
Jan 26
BOS7:35 pmBoston Logan Intl
9h 05m
1 stop
LHR9:40 amLondon Heathrow
$575
Find similar

Air Canada flights from London Heathrow Airport to New Hampshire

Our best Air Canada deals on London Heathrow Airport to New Hampshire flight tickets
Air Canada
May 1
LHR8:30 amLondon Heathrow
17h 57m
2 stops
BOS9:27 pmBoston Logan Intl
Jun 1
BOS3:40 pmBoston Logan Intl
15h 10m
2 stops
LHR11:50 amLondon Heathrow
$578
Find similar
Air Canada
Dec 28
LHR9:00 amLondon Heathrow
29h 32m
2 stops
BOS9:32 amBoston Logan Intl
Jan 6
BOS6:40 pmBoston Logan Intl
20h 55m
1 stop
LHR8:35 pmLondon Heathrow
$595
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated December 23, 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 4/6

11:00 am-1:35 pm

Nonstop7h 35m

Boston Logan Intl

Mon 4/20

8:20 pm-7:50 am

Nonstop6h 30m

$558

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 4/7

8:10 pm-10:35 pm

Nonstop7h 25m

Boston Logan Intl

Wed 4/22

8:20 pm-7:50 am

Nonstop6h 30m

$559

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 1/17

1:30 pm-4:15 pm

Nonstop7h 45m

Boston Logan Intl

Fri 4/24

8:20 pm-7:50 am

Nonstop6h 30m

$560

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/23

11:00 am-1:35 pm

Nonstop7h 35m

Boston Logan Intl

Thu 4/30

9:50 pm-9:35 am

Nonstop6h 45m

$561

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 1/12

7:30 pm-3:50 pm

1 stop25h 20m

Boston Logan Intl

Thu 1/15

5:35 pm-9:20 am

1 stop10h 45m

$562

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 2/16

9:20 am-12:16 pm

Nonstop7h 56m

Boston Logan Intl

Thu 2/19

7:12 pm-6:55 am

Nonstop6h 43m

$563

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 4/8

3:20 pm-9:54 pm

1 stop11h 34m

Boston Logan Intl

Wed 4/22

6:00 am-8:40 pm

1 stop9h 40m

$564

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 4/16

8:10 pm-10:35 pm

Nonstop7h 25m

Boston Logan Intl

Wed 4/22

8:20 pm-7:50 am

Nonstop6h 30m

$565

LondonManchester

LHR - MHT

LHRMHT

London Heathrow

Wed 2/4

12:05 pm-6:51 pm

2 stops35h 46m

Manchester

Wed 2/11

2:17 pm-8:25 am

2 stops13h 08m

$752

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Thu 2/5

6:40 am-12:20 am

3 stops22h 40m

Portland

Thu 2/12

2:35 pm-4:25 pm

3 stops20h 50m

$1,175

Flights are sorted by cheapest round-trip 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 September is another great option to travel to New Hampshire, with average flight prices from London Heathrow Airport averaging around $540.

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

The cheapest day to depart on your flight to New Hampshire is on a Thursday when prices can be found for as low as $667. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to New Hampshire is Saturday, with ticket prices averaging around $776.

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

According to our data, the cheapest time of day to fly to New Hampshire is in the afternoon. momondo users have found flights departing from London Heathrow Airport to New Hampshire in the afternoon for as low as $712. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets at noon because they tend to be around $735. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $624 when searching weeks out. 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 $569 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your New Hampshire trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at New Hampshire. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to New Hampshire. Millions of users trust and use momondo every year so you are in good hands.

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?

Once all potential London to New Hampshire flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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