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Cheap flights from New Hampshire to London Heathrow Airport from £187

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — LHR
23 Apr — 30 Apr1
1 adult

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 18 April 2025.

Round-trip from

£425

One-way from

£187

Popular in

June

Cheapest in

January

Average price

£455
Austrian Airlines
  • Austrian Airlines
  • 1/5-21/5
  • 3 total stops
  • 28h 05m total
  • New Hampshire to London
Search Deals
Icelandair
  • Icelandair
  • 14/5
  • 1 total stop
  • 31h 20m total
  • New Hampshire to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£61 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from New Hampshire to Heathrow

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 18 April 2025.

Thu 1/510:20BOS - LHR
2 stops15h 15mMultiple Airlines
Wed 21/506:00LHR - BOS
1 stop12h 50mMultiple Airlines
Deal found 17/4£425
Wed 7/520:50BOS - LHR
1 stop18h 30mIcelandair
Mon 12/521:25LHR - BOS
1 stop29h 35mIcelandair
Deal found 18/4£426
Fri 25/418:58BOS - LHR
1 stop10h 12mLufthansa
Fri 2/512:10LHR - BOS
1 stop12h 45mLufthansa
Deal found 18/4£427
Mon 15/917:40BOS - LHR
1 stop17h 20mScandinavian Airlines
Sun 28/918:40LHR - BOS
1 stop25h 55mScandinavian Airlines
Deal found 18/4£427
Tue 25/1122:00BOS - LHR
Nonstop6h 30mIberia
Fri 28/1111:25LHR - BOS
Nonstop7h 35mIberia
Deal found 16/4£429
Fri 9/510:20BOS - LHR
1 stop15h 10mUnited Airlines
Sat 17/512:10LHR - BOS
1 stop12h 45mUnited Airlines
Deal found 17/4£434
Sun 4/507:25BOS - LHR
Nonstop6h 30mBritish Airways
Wed 7/508:55LHR - BOS
Nonstop7h 15mBritish Airways
Deal found 16/4£438
Fri 25/418:26BOS - LHR
Nonstop7h 04mJetBlue
Fri 2/508:25LHR - BOS
Nonstop7h 31mJetBlue
Deal found 18/4£440
Fri 14/1110:20BOS - LHR
2 stops15h 10mAir Canada
Mon 17/1106:00LHR - BOS
2 stops15h 58mAir Canada
Deal found 17/4£441
Fri 15/819:10BOS - LHR
Nonstop6h 35mDelta
Sat 23/809:40LHR - BOS
Nonstop7h 35mDelta
Deal found 16/4£447
Thu 1/521:40BOS - LHR
1 stop10h 20mSWISS
Mon 12/508:40LHR - BOS
1 stop16h 15mSWISS
Deal found 17/4£449
Fri 25/420:00BOS - LHR
1 stop10h 05mFinnair
Fri 2/520:10LHR - BOS
Nonstop7h 20mFinnair
Deal found 17/4£453

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 18 April 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

Thu 1/5

10:40-06:35

1 stop14h 55m

London Heathrow

Wed 21/5

06:00-13:50

1 stop12h 50m

£425

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 7/5

20:50-20:20

1 stop18h 30m

London Heathrow

Mon 12/5

21:25-22:00

1 stop29h 35m

£426

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 15/9

17:40-16:00

1 stop17h 20m

London Heathrow

Sun 28/9

18:40-15:35

1 stop25h 55m

£427

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 21/8

21:55-09:30

Nonstop6h 35m

London Heathrow

Tue 2/9

08:55-11:20

Nonstop7h 25m

£430

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 9/5

10:20-06:30

1 stop15h 10m

London Heathrow

Sat 17/5

12:10-19:55

1 stop12h 45m

£434

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 8/5

20:15-08:05

Nonstop6h 50m

London Heathrow

Wed 21/5

18:15-21:00

Nonstop7h 45m

£435

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 8/5

10:20-06:30

2 stops15h 10m

London Heathrow

Wed 21/5

06:50-14:32

2 stops12h 42m

£436

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 4/5

07:25-18:55

Nonstop6h 30m

London Heathrow

Wed 7/5

08:55-11:10

Nonstop7h 15m

£438

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 2/5

18:26-06:30

Nonstop7h 04m

London Heathrow

Thu 8/5

08:25-10:56

Nonstop7h 31m

£440

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 15/8

19:10-06:45

Nonstop6h 35m

London Heathrow

Sat 23/8

09:40-12:15

Nonstop7h 35m

£447

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 52 results
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2
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6

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 18 April 2025.
See what other customers who have flown with Delta, KLM and Finnair from New Hampshire to London have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,917 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,329 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Austrian Airlines
7.6
Good
775 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,581 reviews
Delta
8.0
Very Good
7,917 reviews
Check prices

Entertainment

7.9

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from New Hampshire to London Heathrow Airport one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as £187. Users have also found prices from £226 and £228 on Virgin Atlantic and TAP AIR PORTUGAL, respectively.

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

    While some choose either Manchester - London Heathrow or Worcester - 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.

  • What is the cheapest month to book a flight from New Hampshire to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from New Hampshire to London Heathrow Airport (average of £112). Flying from New Hampshire to London Heathrow Airport in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near New Hampshire?

Book flights to New Hampshire if you plan to visit one of these locations
Hounslow
Deal
Milton Keynes
Gatwick
Luton
Slough
Croydon
Eastbourne
Wembley
Northampton
Hayes
Crawley
Southend-on-Sea
Maidstone
Swindon
Ipswich
Southall
Ilford
Winchester
Folkestone

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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