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Cheap flights from London to New Hampshire from £339

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — MHT
17 May — 24 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to New Hampshire

Enter your travel dates to find the best prices.

Cheapest flights from London to New Hampshire
Explore the most affordable flight options available from London to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 April 2026.

Wed 27/517:35
LHR
-
BOS
Nonstop7h 30m
British Airways
Fri 5/619:35
BOS
-
LHR
Nonstop6h 35m
British Airways
Deal found 12/4£399
Tue 26/514:25
LHR
-
BOS
Nonstop7h 25m
British Airways
Sat 6/619:35
BOS
-
LHR
Nonstop6h 35m
British Airways
Deal found 12/4£399
Thu 30/413:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Sun 10/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 13/4£401
Fri 15/511:45
LHR
-
BOS
1 stop12h 18m
Delta
Sat 23/519:00
BOS
-
LHR
Nonstop6h 45m
Delta
Deal found 13/4£403
Wed 3/615:40
LGW
-
BOS
1 stop11h 05m
Icelandair
Sun 7/623:00
BOS
-
LGW
1 stop31h 45m
Icelandair
Deal found 14/4£403
Mon 27/710:05
LHR
-
BOS
Nonstop7h 30m
American Airlines
Thu 13/806:00
BOS
-
LHR
1 stop10h 40m
American Airlines
Deal found 13/4£404
Thu 28/515:40
LGW
-
BOS
1 stop11h 05m
Icelandair
Sun 31/523:00
BOS
-
LGW
1 stop31h 45m
Icelandair
Deal found 13/4£404
Thu 28/513:00
LGW
-
BOS
1 stop10h 50m
Icelandair
Mon 1/623:00
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 16/4£404
Fri 1/513:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Sat 9/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 13/4£405
Thu 28/513:00
LGW
-
BOS
1 stop10h 50m
Icelandair
Thu 4/620:50
BOS
-
LGW
1 stop12h 50m
Icelandair
Deal found 13/4£405
Fri 1/513:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Sun 10/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 13/4£406
Fri 15/513:00
LGW
-
BOS
1 stop13h 05m
LEVEL
Sat 7/1122:40
BOS
-
LGW
1 stop28h 40m
LEVEL
Deal found 15/4£406

Find flight deals from London to New Hampshire

Keep the following information in mind while searching for London to New Hampshire flight deals. Data was last updated 17 April 2026.

Round-trip from

£399

One-way from

£339

Popular in

July

Cheapest in

September

Average price

£480
British Airways
  • British Airways
  • 27/5-5/6
  • Nonstop
  • 14h 05m total
  • London to New Hampshire
Search Deals
JetBlue
  • JetBlue
  • 7/5
  • 1 total stop
  • 16h 08m total
  • London to New Hampshire
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£37 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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, Cheapflights users made 858,174 searches. Data last updated 17 April 2026.
Use the filters below to find and compare flights from London to New Hampshire that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 17/9

10:55-21:15

1 stop15h 20m

Boston Logan Intl

Thu 24/9

23:00-23:10

1 stop19h 10m

£417

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 15/9

09:55-21:15

1 stop16h 20m

Boston Logan Intl

Tue 22/9

23:00-09:10

1 stop29h 10m

£430

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Mon 12/10

16:25-21:15

1 stop33h 50m

Boston Logan Intl

Mon 19/10

23:00-12:15

1 stop32h 15m

£453

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 5/5

13:05-18:50

1 stop10h 45m

Boston Logan Intl

Tue 12/5

20:50-11:55

1 stop10h 05m

£466

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Wed 3/6

12:05-21:05

1 stop14h 00m

Boston Logan Intl

Thu 4/6

22:50-12:15

1 stop32h 25m

£495
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 23/6

08:55-14:55

1 stop11h 00m

Boston Logan Intl

Wed 1/7

23:10-10:40

Nonstop6h 30m

£500

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 3/5

06:30-16:25

1 stop14h 55m

Boston Logan Intl

Sun 10/5

20:55-12:05

1 stop10h 10m

£508

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 16/7

09:10-21:15

1 stop17h 05m

Boston Logan Intl

Thu 23/7

23:00-23:10

1 stop19h 10m

£511

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 21/5

06:30-13:10

1 stop11h 40m

Boston Logan Intl

Tue 26/5

21:30-09:15

Nonstop6h 45m

£513

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 28/6

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Sat 11/7

09:05-06:45

1 stop16h 40m

£513

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from London to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to New Hampshire
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from London to New Hampshire. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to New Hampshire?

    Departing from London to New Hampshire will take you 10h 45m. The distance from London to New Hampshire is about 3254 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from London to New Hampshire?

    The most popular flight routes from London to New Hampshire are London Heathrow - Boston Logan Intl, London Gatwick - Boston Logan Intl and London City - Boston Logan Intl.

  • Can I find deals for flights from London to New Hampshire that include hotel bookings?

    Yes. In addition to deals on London to New Hampshire flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to New Hampshire?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to New Hampshire.

  • Can I find deals for business class flights from London to New Hampshire?

    Yes. Cheapflights offers flight deals from London to New Hampshire by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
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Stansted to Miami flights
Heathrow to Baltimore flights
Manchester to Newark flights
Heathrow to George Bush Intcntl flights
Gatwick to San Francisco flights
London City to Miami flights
Heathrow to Tampa flights
Heathrow to Denver flights
London City to Boston flights
Stansted to San Francisco flights
London City to San Francisco flights
Heathrow to Nashville flights
Gatwick to Las Vegas flights
Manchester to LaGuardia flights
Edinburgh to John F Kennedy Intl flights
Luton to Miami flights
Stansted to Boston flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to New Hampshire?

Cheapflights makes it easy to find London to New Hampshire flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to New Hampshire?

Cheapflights helps you find that perfect flight to New Hampshire from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to New Hampshire with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to New Hampshire flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to New Hampshire become cheaper?

Yes! Start tracking prices for London to New Hampshire flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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