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Cheap flights from New Hampshire to London Heathrow Airport from £163

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 19/7. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — LHR
23 Mar — 30 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from New Hampshire to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from New Hampshire to Heathrow
Explore the most affordable flight options available from New Hampshire to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2026.

Mon 11/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Tue 19/521:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 17/2£361
Mon 6/423:00
BOS
-
LHR
1 stop31h 55m
Icelandair
Mon 13/421:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 20/2£362
Mon 27/420:05
BOS
-
LHR
2 stops16h 00m
Brussels Airlines
Wed 29/406:50
LHR
-
BOS
2 stops13h 50m
Brussels Airlines
Deal found 20/2£362
Tue 12/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Thu 28/513:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Deal found 17/2£363
Fri 27/320:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 31/309:50
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 17/2£364
Thu 19/218:40
BOS
-
LHR
1 stop20h 55m
Multiple Airlines
Wed 25/213:45
LHR
-
BOS
1 stop11h 35m
Multiple Airlines
Deal found 18/2£364
Tue 7/420:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Mon 20/413:05
LHR
-
BOS
1 stop13h 40m
Icelandair
Deal found 16/2£365
Sun 8/321:40
BOS
-
LHR
1 stop14h 10m
Lufthansa
Thu 12/311:10
LHR
-
BOS
1 stop12h 25m
Lufthansa
Deal found 19/2£366
Tue 17/320:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 31/309:50
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 20/2£367
Mon 16/321:40
BOS
-
LHR
1 stop11h 20m
Lufthansa
Tue 24/311:10
LHR
-
BOS
1 stop12h 25m
Lufthansa
Deal found 20/2£367
Sun 1/319:50
BOS
-
LHR
1 stop10h 00m
Icelandair
Mon 9/320:35
LHR
-
BOS
1 stop26h 15m
Icelandair
Deal found 17/2£368
Mon 20/420:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Wed 29/421:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 18/2£369

Find flight deals from New Hampshire to Heathrow

Keep the following information in mind while searching for New Hampshire to Heathrow flight deals. Data was last updated 21 February 2026.

Round-trip from

£361

One-way from

£163

Popular in

June

Cheapest in

October

Average price

£407
Icelandair
  • Icelandair
  • 11/5-19/5
  • 2 total stops
  • 36h 30m total
  • New Hampshire to London
Search Deals
United Airlines
  • United Airlines
  • 19/7
  • 1 total stop
  • 20h 00m total
  • New Hampshire to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 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 New Hampshire to Heathrow 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 21 February 2026.
Use the filters below to find and compare flights from New Hampshire to London Heathrow Airport that are best for you.

Fly from

New Hampshire

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 5/3

05:30-07:10

1 stop20h 40m

London Heathrow

Wed 11/3

13:45-21:20

1 stop11h 35m

£381

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 7/3

14:02-06:20

1 stop11h 18m

London Heathrow

Thu 12/3

13:45-21:20

1 stop11h 35m

£381

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 12/3

06:00-20:35

1 stop10h 35m

London Heathrow

Thu 19/3

13:45-21:20

1 stop11h 35m

£382

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 20/3

05:45-10:50

1 stop25h 05m

London Heathrow

Sun 29/3

14:05-09:52

1 stop24h 47m

£384

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 3/3

19:10-06:50

Nonstop6h 40m

London Heathrow

Wed 11/3

06:20-14:30

1 stop12h 10m

£385

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 29/4

18:40-21:00

1 stop21h 20m

London Heathrow

Thu 7/5

13:50-19:55

1 stop11h 05m

£390

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 23/3

21:00-07:50

Nonstop6h 50m

London Heathrow

Tue 31/3

16:50-19:35

Nonstop7h 45m

£390

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 22/3

20:10-06:50

Nonstop6h 40m

London Heathrow

Tue 31/3

16:50-19:35

Nonstop7h 45m

£390

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 20/3

21:00-07:50

Nonstop6h 50m

London Heathrow

Tue 31/3

16:50-19:35

Nonstop7h 45m

£391

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 23/3

12:07-07:55

2 stops15h 48m

London Heathrow

Thu 2/4

13:50-19:55

1 stop11h 05m

£393

Flights are sorted by cheapest return flights first.

Deals found on 17/2

Showing 1-10 of 60 results
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Best time to book a flight from New Hampshire to Heathrow

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

    United Airlines, Delta, and American Airlines can get you from New Hampshire to London Heathrow Airport in just under 6h 40m. Your travel time can differ by up to 14h. The distance from New Hampshire to London Heathrow Airport 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 New Hampshire to London Heathrow Airport?

    While some choose either Manchester - London Heathrow or Portland - London Heathrow, Boston Logan Intl - London Heathrow is the most popular route from New Hampshire to London Heathrow Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from New Hampshire to Heathrow 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Luton
Croydon
Wembley
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Kingston upon Thames
Eastbourne
Ipswich
Chelmsford
Swindon
Bedford

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for New Hampshire to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Newark to Luton flights
Dulles Intl to London City flights
Denver to Heathrow flights
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Boston to Stansted flights
George Bush Intcntl to Heathrow flights
Los Angeles to Stansted flights
Baltimore to Gatwick flights
O'Hare Intl to Gatwick flights
Minneapolis to Heathrow flights
Reagan-National to Gatwick flights
Los Angeles to London City flights
Tampa to Heathrow flights
San Francisco to Gatwick flights
Dallas/Fort Worth to Gatwick flights
O'Hare Intl to London City flights
O'Hare Intl to Stansted flights
Charlotte to Heathrow flights
Austin to Heathrow flights
Orlando to Gatwick flights
San Francisco to London City flights

Fly with Cheapflights

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

Cheapflights helps you search for flights from New Hampshire to Heathrow via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from New Hampshire.

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

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

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