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Cheap flights from New Hampshire to London Heathrow Airport from £147

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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — LHR
25 Dec — 1 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap 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 25 November 2025.

Round-trip from

£389

One-way from

£147

Popular in

June

Cheapest in

October

Average price

£446
Air Canada
  • Air Canada
  • 9/1-16/1
  • 3 total stops
  • 28h 22m total
  • New Hampshire to London
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SWISS
  • SWISS
  • 1/12
  • 1 total stop
  • 13h 10m total
  • New Hampshire to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£60 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 November 2025
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Find 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 25 November 2025.

Thu 11/1219:15BOS - LHR
Nonstop6h 45mIberia
Thu 18/1217:00LHR - BOS
1 stop10h 47mIberia
Deal found 24/11£389
Wed 31/1220:00BOS - LHR
Nonstop6h 50mDelta
Mon 12/109:40LHR - BOS
Nonstop7h 50mDelta
Deal found 24/11£389
Sun 30/1123:55BOS - LHR
Nonstop6h 30mDelta
Thu 4/1213:05LHR - BOS
Nonstop7h 55mDelta
Deal found 22/11£390
Sun 7/1219:15BOS - LHR
Nonstop6h 45mBritish Airways
Sat 13/1217:05LHR - BOS
Nonstop7h 40mBritish Airways
Deal found 23/11£391
Thu 27/1116:45BOS - LHR
1 stop10h 40mIberia
Wed 3/1213:30LHR - BOS
Nonstop7h 30mIberia
Deal found 24/11£392
Wed 31/1211:10BOS - LHR
1 stop14h 55mDelta
Sat 10/113:05LHR - BOS
Nonstop7h 55mDelta
Deal found 24/11£392
Sat 6/1211:53BOS - LHR
2 stops14h 17mUnited Airlines
Sat 13/1209:00LHR - BOS
1 stop13h 50mUnited Airlines
Deal found 24/11£393
Wed 31/1210:15BOS - LHR
2 stops18h 05mAir Canada
Sat 10/113:00LHR - BOS
2 stops25h 32mAir Canada
Deal found 24/11£394
Tue 2/1215:40BOS - LHR
1 stop10h 30mUnited Airlines
Sat 6/1209:00LHR - BOS
2 stops14h 02mUnited Airlines
Deal found 24/11£395
Wed 24/1218:40BOS - LHR
1 stop20h 55mUnited Airlines
Fri 20/313:45LHR - BOS
1 stop11h 15mUnited Airlines
Deal found 23/11£395
Mon 8/1215:40BOS - LHR
1 stop10h 30mUnited Airlines
Fri 26/1212:05LHR - BOS
1 stop12h 55mUnited Airlines
Deal found 21/11£396
Tue 30/1219:10BOS - LHR
Nonstop6h 40mVirgin Atlantic
Fri 9/120:00LHR - BOS
1 stop17h 28mVirgin Atlantic
Deal found 24/11£397

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 25 November 2025.
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

Tue 30/12

19:10-06:50

Nonstop6h 40m

London Heathrow

Fri 9/1

09:40-12:30

Nonstop7h 50m

£389

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 6/12

20:00-07:50

Nonstop6h 50m

London Heathrow

Thu 11/12

09:40-12:30

Nonstop7h 50m

£390

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 31/1

20:00-07:50

Nonstop6h 50m

London Heathrow

Thu 12/2

06:20-13:40

1 stop12h 20m

£390

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 7/12

20:00-07:50

Nonstop6h 50m

London Heathrow

Thu 11/12

13:05-16:00

Nonstop7h 55m

£390

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 19/2

20:00-07:50

Nonstop6h 50m

London Heathrow

Sat 28/2

06:20-16:20

1 stop15h 00m

£391

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 22/2

19:15-06:50

Nonstop6h 35m

London Heathrow

Sat 28/2

08:55-16:20

1 stop12h 25m

£391

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 28/1

20:00-07:50

Nonstop6h 50m

London Heathrow

Sat 14/2

08:55-16:20

1 stop12h 25m

£391

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 9/12

16:46-08:45

1 stop10h 59m

London Heathrow

Sun 14/12

13:05-16:00

Nonstop7h 55m

£393

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 3/2

06:00-20:10

1 stop9h 10m

London Heathrow

Sat 14/2

08:55-16:20

1 stop12h 25m

£394

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 29/3

05:30-10:00

1 stop23h 30m

London Heathrow

Sat 4/4

13:45-15:30

1 stop30h 45m

£395

Flights are sorted by cheapest return flights first.

Deals found on 24/11

Showing 1-10 of 57 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?

    Delta, Scandinavian Airlines, and Virgin Atlantic can get you from New Hampshire to London Heathrow Airport in just under 6h 40m. Your travel time can differ by up to 22h 15m. 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 cheapest airlines to fly from New Hampshire to London Heathrow Airport one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as £170. Users have also found prices from £170 and £170 on Delta and British Airways, respectively.

  • 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
Croydon
Slough
Gatwick
Hounslow
Northampton
Luton
Ilford
Wembley
Deal
Hayes
Colchester
Watford
Winchester
Swindon
Crawley
Brentford
Romford
Chichester
Ipswich

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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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Los Angeles to London City flights
San Francisco to Gatwick flights
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Boston to Stansted flights
Baltimore to Gatwick flights
Reagan-National to Gatwick flights
Boston to Luton flights
O'Hare Intl to Gatwick flights
San Francisco to London City flights
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O'Hare Intl to London City flights
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How does Cheapflights help users find flights from New Hampshire to Heathrow?

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

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