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Cheap flights from London Heathrow Airport to New Hampshire from £322

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MHT
24 Apr — 1 May1
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 25 March 2026.

Wed 16/908:40
LHR
-
BOS
Nonstop7h 43m
JetBlue
Wed 23/918:35
BOS
-
LHR
Nonstop6h 55m
JetBlue
Deal found 24/3£385
Tue 15/917:35
LHR
-
BOS
Nonstop7h 30m
British Airways
Thu 5/1107:30
BOS
-
LHR
Nonstop6h 30m
British Airways
Deal found 21/3£387
Fri 15/513:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Sun 17/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 22/3£395
Mon 17/810:05
LHR
-
BOS
Nonstop7h 40m
American Airlines
Tue 25/817:04
BOS
-
LHR
1 stop12h 16m
American Airlines
Deal found 23/3£396
Tue 18/812:30
LHR
-
BOS
1 stop11h 37m
American Airlines
Tue 25/817:04
BOS
-
LHR
1 stop12h 16m
American Airlines
Deal found 23/3£399
Thu 14/513:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Mon 18/520:50
BOS
-
LHR
1 stop18h 30m
Icelandair
Deal found 20/3£402
Wed 6/521:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Mon 11/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Deal found 21/3£404
Thu 17/909:40
LHR
-
BOS
Nonstop7h 37m
Delta
Thu 5/1119:10
BOS
-
LHR
Nonstop6h 40m
Delta
Deal found 21/3£405
Mon 4/521:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Mon 11/523:00
BOS
-
LHR
1 stop31h 55m
Icelandair
Deal found 24/3£406
Fri 14/820:10
LHR
-
BOS
Nonstop7h 25m
British Airways
Mon 24/821:50
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 23/3£407
Mon 20/408:15
LHR
-
PWM
1 stop19h 44m
JetBlue
Mon 27/407:30
PWM
-
LHR
1 stop32h 15m
JetBlue
Deal found 20/3£489
Fri 8/508:15
LHR
-
PWM
1 stop19h 48m
JetBlue
Fri 15/507:20
PWM
-
LHR
1 stop21h 10m
JetBlue
Deal found 24/3£497

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 25 March 2026.

Round-trip from

£385

One-way from

£322

Popular in

July

Cheapest in

September

Average price

£464
JetBlue
  • JetBlue
  • 16/9-23/9
  • Nonstop
  • 14h 38m total
  • London to New Hampshire
Search Deals
SWISS
  • SWISS
  • 4/5
  • 1 total stop
  • 16h 15m 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 (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 25 March 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

LondonPortland

LHR - PWM

LHRPWM

London Heathrow

Fri 8/5

08:15-23:03

1 stop19h 48m

Portland

Fri 15/5

07:20-09:30

1 stop21h 10m

£497

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 2/7

06:30-13:18

1 stop11h 48m

Boston Logan Intl

Thu 9/7

23:10-10:40

Nonstop6h 30m

£513

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 23/7

09:55-16:40

1 stop11h 45m

Boston Logan Intl

Thu 30/7

09:05-06:45

1 stop16h 40m

£518

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 9/8

06:15-13:39

1 stop12h 24m

Boston Logan Intl

Tue 18/8

23:10-10:40

Nonstop6h 30m

£524

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 1/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Fri 10/7

20:45-14:35

1 stop12h 50m

£527

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 6/4

06:30-16:25

1 stop14h 55m

Boston Logan Intl

Mon 13/4

13:30-10:20

1 stop15h 50m

£531

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 16/5

06:30-13:16

1 stop11h 46m

Boston Logan Intl

Tue 19/5

19:00-06:45

Nonstop6h 45m

£534

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 1/7

16:50-19:35

Nonstop7h 45m

Boston Logan Intl

Sun 12/7

21:30-09:15

Nonstop6h 45m

£543
Fastest return journey

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 7/7

18:55-21:20

Nonstop7h 25m

Boston Logan Intl

Fri 7/8

23:10-10:40

Nonstop6h 30m

£546

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 21/8

15:50-22:36

1 stop11h 46m

Boston Logan Intl

Fri 28/8

23:10-10:40

Nonstop6h 30m

£547

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 60 resultsSorted by cheapest first
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2
3
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6

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.

Reviews of airlines servicing New Hampshire

Get insights into the airlines that provide service to New Hampshire. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to New Hampshire. Reviews last updated 25 March 2026.
Read reviews from past customers who have flown with Icelandair from London Heathrow Airport to New Hampshire. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.0
Good
625 reviews
Check prices

Boarding

7.2

Entertainment

7.0

Overall

7.0

Food

6.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
Icelandair
7.0
Good
625 reviews
Icelandair
7.0
Good
625 reviews
Check prices

Boarding

7.2

Entertainment

7.0

Overall

7.0

Food

6.2

Comfort

6.9

Crew

8.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.

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 £513, JetBlue can have you in New Hampshire from London Heathrow Airport in 11h 48m. 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 - Portland or London Heathrow - Manchester.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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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Gatwick to San Francisco flights
Luton to Los Angeles flights
Luton to Miami flights
London City to San Francisco flights
Stansted to San Francisco flights
Luton to Boston flights
Gatwick to Las Vegas flights
Heathrow to Austin flights

Top airline flying from Heathrow to New Hampshire

Discover the top airline that operate flights from Heathrow 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 25 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£762Average£1,209FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to New Hampshire from Heathrow today with Cheapflights!

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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