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Cheap flights from London to New Hampshire from £288

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 18/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — MHT
9 Mar — 16 Mar1
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 7 February 2026.

Thu 7/513:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Sun 10/523:00
BOS
-
LHR
1 stop16h 20m
Icelandair
Deal found 6/2£345
Wed 2/915:40
LGW
-
BOS
1 stop32h 10m
Icelandair
Wed 23/923:00
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 6/2£345
Fri 4/921:25
LHR
-
BOS
1 stop29h 20m
Icelandair
Fri 18/923:00
BOS
-
LHR
1 stop16h 20m
Icelandair
Deal found 6/2£346
Wed 13/515:40
LGW
-
BOS
1 stop11h 05m
Icelandair
Mon 18/523:00
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 5/2£346
Fri 4/921:25
LHR
-
BOS
1 stop29h 20m
Icelandair
Sun 20/923:00
BOS
-
LHR
1 stop16h 20m
Icelandair
Deal found 7/2£347
Wed 2/915:40
LGW
-
BOS
1 stop11h 05m
Icelandair
Thu 17/920:50
BOS
-
LGW
1 stop12h 50m
Icelandair
Deal found 4/2£347
Tue 5/513:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Tue 19/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 4/2£347
Tue 17/311:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Sat 4/420:50
BOS
-
LGW
1 stop12h 50m
Icelandair
Deal found 4/2£348
Tue 17/311:55
LGW
-
BOS
1 stop10h 55m
Icelandair
Tue 14/420:50
BOS
-
LGW
1 stop12h 50m
Icelandair
Deal found 5/2£349
Thu 12/308:00
LHR
-
BOS
1 stop13h 19m
United Airlines
Mon 16/314:15
BOS
-
LHR
1 stop12h 25m
United Airlines
Deal found 5/2£350
Thu 5/316:00
LGW
-
BOS
1 stop27h 35m
TAP AIR PORTUGAL
Sun 15/323:45
BOS
-
LGW
1 stop12h 00m
TAP AIR PORTUGAL
Deal found 4/2£350
Wed 13/515:40
LGW
-
BOS
1 stop11h 05m
Icelandair
Tue 26/523:00
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 5/2£351

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 7 February 2026.

Round-trip from

£345

One-way from

£288

Popular in

July

Cheapest in

September

Average price

£389
Icelandair
  • Icelandair
  • 7/5-10/5
  • 2 total stops
  • 30h 00m total
  • London to New Hampshire
Search Deals
18/3
  • 18/3
  • 1 total stop
  • 29h 00m total
  • London to New Hampshire
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£43 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 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 7 February 2026.
Use the filters below to find and compare flights from London to New Hampshire that are best for you.

Fly from

London

Fly to

New Hampshire

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 13/5

13:05-21:45

1 stop13h 40m

Boston Logan Intl

Wed 20/5

20:50-20:20

1 stop18h 30m

£345

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 5/5

13:05-18:50

1 stop10h 45m

Boston Logan Intl

Tue 19/5

20:50-11:55

1 stop10h 05m

£345

LondonBoston

STN - BOS

STNBOS

London Stansted

Mon 2/3

08:30-13:55

1 stop10h 25m

Boston Logan Intl

Mon 2/3

17:10-07:50

1 stop9h 40m

£368

LondonBoston

LTN - BOS

LTNBOS

London Luton

Wed 15/4

06:15-18:50

2 stops17h 35m

Boston Logan Intl

Wed 22/4

20:50-21:15

2 stops19h 25m

£372

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 19/3

06:30-14:20

1 stop11h 50m

Boston Logan Intl

Mon 6/4

19:00-06:45

Nonstop6h 45m

£381

LondonBoston

LTN - BOS

LTNBOS

London Luton

Tue 24/2

09:00-17:50

2 stops13h 50m

Boston Logan Intl

Tue 3/3

19:50-20:05

2 stops19h 15m

£389

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 24/2

06:30-13:25

1 stop11h 55m

Boston Logan Intl

Tue 3/3

19:10-06:50

Nonstop6h 40m

£391

LondonBoston

LTN - BOS

LTNBOS

London Luton

Fri 27/2

05:50-17:50

2 stops17h 00m

Boston Logan Intl

Wed 4/3

19:50-23:05

2 stops22h 15m

£391

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 18/3

09:40-13:25

Nonstop7h 45m

Boston Logan Intl

Tue 7/4

21:30-09:15

Nonstop6h 45m

£394

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 6/3

07:05-15:50

2 stops13h 45m

Boston Logan Intl

Mon 9/3

18:35-14:35

2 stops16h 00m

£398

Flights are sorted by cheapest return flights first.

Deals found on 6/2

Showing 1-10 of 60 results
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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 11h 50m. 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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Heathrow to Newark flights
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London City to Miami flights
Edinburgh to John F Kennedy Intl flights
Edinburgh to Newark flights
Manchester to Newark flights
Stansted to Orlando flights
Stansted to Los Angeles flights
Heathrow to George Bush Intcntl flights
Heathrow to Baltimore flights
Heathrow to Denver flights
London City to Orlando flights
Gatwick to Seattle flights
Manchester to LaGuardia flights
Luton to Miami flights
Gatwick to San Francisco flights
London City to Boston flights
London City to Seattle flights
Gatwick to Dallas/Fort Worth flights

Top airline flying from London to New Hampshire

Discover the top airline that operate flights from London to New Hampshire. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 February 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£752Average£1,192FlexibilityNo cancel feeOn-time76%
Search Icelandair 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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