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Cheap flights from London Heathrow Airport to New Hampshire from £338

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 18/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MHT
12 Sep — 19 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to New Hampshire

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to New Hampshire
Explore the most affordable flight options available from Heathrow to New Hampshire. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 August 2026.

Sat 5/916:40 -
1 stop12h 19m
Sun 6/910:40 -
1 stop14h 50m
Deal found 8/8£431
Mon 14/1206:30 -
1 stop12h 15m
Mon 14/1219:35 -
1 stop10h 15m
Deal found 8/8£433
Tue 29/920:50 -
1 stop29h 15m
Wed 7/1022:55 -
1 stop16h 10m
Deal found 9/8£435
Wed 9/907:30 -
1 stop13h 10m
Wed 9/919:23 -
1 stop10h 17m
Deal found 9/8£435
Thu 27/809:30 -
1 stop14h 58m
Sun 30/814:28 -
1 stop11h 27m
Deal found 9/8£436
Sat 26/916:40 -
1 stop27h 15m
Sun 27/921:40 -
1 stop10h 20m
Deal found 8/8£437
Sat 19/917:50 -
1 stop28h 50m
Mon 21/909:30 -
1 stop20h 10m
Deal found 11/8£438
Thu 10/918:00 -
2 stops21h 18m
Fri 11/918:25 -
1 stop21h 35m
Deal found 7/8£438
Wed 30/909:55 -
1 stop16h 10m
Wed 7/1022:55 -
1 stop29h 15m
Deal found 7/8£439
Fri 25/916:40 -
1 stop31h 27m
Sun 27/905:50 -
1 stop19h 40m
Deal found 7/8£440
Tue 8/909:30 -
1 stop11h 10m
Tue 8/919:23 -
1 stop10h 17m
Deal found 9/8£441
Wed 9/909:55 -
1 stop16h 10m
Wed 16/922:55 -
1 stop16h 10m
Deal found 9/8£442

Find flight deals from Heathrow to New Hampshire

Keep the following information in mind while searching for Heathrow to New Hampshire flight deals. Data was last updated 13 August 2026.

Round-trip from

£431

One-way from

£338

Popular in

June

Cheapest in

February

Average price

£530
5/9-6/9
  • 5/9-6/9
  • 2 total stops
  • 27h 09m total
  • London to New Hampshire
Search Deals
Air Canada
  • Air Canada
  • 18/11
  • 2 total stops
  • 13h 03m total
  • London to New Hampshire
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 13 August 2026.
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

Cheapest return flight

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Tue 10/11

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Tue 17/11

19:50-19:30

1 stop18h 40m

£475

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Mon 9/11

06:30-14:13

1 stop12h 43m

Boston Logan Intl

Mon 16/11

20:00-07:50

Nonstop6h 50m

£494

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Fri 9/10

07:30-16:46

2 stops14h 16m

Boston Logan Intl

Fri 16/10

15:48-07:15

1 stop10h 27m

£494

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Tue 22/9

06:30-13:19

1 stop11h 49m

Boston Logan Intl

Fri 9/10

21:30-09:15

Nonstop6h 45m

£494

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Tue 10/11

08:25-18:00

1 stop14h 35m

Boston Logan Intl

Tue 17/11

17:30-13:30

2 stops15h 00m

£494

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Fri 6/11

08:15-19:55

1 stop16h 40m

Boston Logan Intl

Tue 10/11

22:45-21:35

2 stops17h 50m

£495

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Thu 1/10

06:30-13:15

1 stop11h 45m

Boston Logan Intl

Thu 15/10

19:05-06:45

Nonstop6h 40m

£495
Fastest return journey

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Thu 3/12

08:40-14:20

1 stop10h 40m

Boston Logan Intl

Tue 8/12

20:00-07:50

Nonstop6h 50m

£495

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Thu 10/12

08:40-14:20

1 stop10h 40m

Boston Logan Intl

Sun 13/12

20:00-07:50

Nonstop6h 50m

£496

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Wed 23/12

06:30-14:20

1 stop12h 50m

Boston Logan Intl

Sat 2/1

20:00-07:50

Nonstop6h 50m

£497

Flights are sorted by cheapest return flights first.

Deals found on 12/8

Showing 1-10 of 59 resultsSorted by cheapest first
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Best time to book a flight from Heathrow to New Hampshire

Have a flexible travel schedule? Discover the best time to fly to New Hampshire from Heathrow 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 Heathrow Airport 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 Heathrow 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 Heathrow Airport to New Hampshire?

    For as low as £475, Icelandair can have you in New Hampshire from London Heathrow Airport in 10h 35m. The distance between London Heathrow Airport and New Hampshire is about 3254 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The most popular route from London Heathrow Airport to New Hampshire is London Heathrow - Boston Logan Intl. You may also consider London Heathrow - Manchester or London Heathrow - Portland.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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

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Alternative routes for Heathrow to New Hampshire

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Dulles Intl flights
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Heathrow to Hobby flights
Stansted to Orlando flights
Gatwick to Miami flights
Heathrow to Baltimore flights
Heathrow to Atlanta flights
Heathrow to Seattle flights
Gatwick to Los Angeles flights
Stansted to Miami flights
London City to Miami flights
London City to Orlando flights
London City to Los Angeles flights
Heathrow to George Bush Intcntl flights
Heathrow to Tampa flights
Stansted to Los Angeles flights
Gatwick to Boston flights
Luton to Miami flights
London City to Boston flights
Gatwick to San Francisco flights
Luton to Los Angeles flights
Heathrow to Ontario flights
London City to San Francisco flights
Heathrow to Nashville flights
Luton to Orlando flights
Gatwick to Dulles Intl flights
Heathrow to Reagan-National flights
Gatwick to Las Vegas flights
Gatwick to Dallas/Fort Worth flights
London City to Dulles Intl flights

Fly with Cheapflights

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

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

Cheapflights helps you find that perfect flight to New Hampshire from Heathrow 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 Heathrow to New Hampshire with no change fees?

Yes, we can. To see specific flights from Heathrow to New Hampshire with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for Heathrow 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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