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Cheap flights from New Hampshire to London Heathrow Airport from £155

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 24/7. Fares are subject to change and may not be available on all flights or dates of travel.
MHT — LHR
20 Jul — 27 Jul1
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 15 July 2025.

Round-trip from

£368

One-way from

£155

Popular in

June

Cheapest in

January

Average price

£544
3/11-16/11
  • 3/11-16/11
  • 3 total stops
  • 23h 27m total
  • New Hampshire to London
Search Deals
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 24/7
  • 1 total stop
  • 14h 20m total
  • New Hampshire to London
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 15 July 2025.

Mon 3/1119:55BOS - LHR
1 stop10h 25mMultiple Airlines
Sun 16/1106:50LHR - BOS
2 stops13h 02mMultiple Airlines
Deal found 14/7£368
Wed 3/907:25BOS - LHR
Nonstop6h 30mBritish Airways
Wed 10/917:35LHR - BOS
Nonstop7h 35mBritish Airways
Deal found 14/7£369
Wed 22/1018:30BOS - LHR
1 stop10h 05mUnited Airlines
Mon 27/1008:55LHR - BOS
1 stop16h 25mUnited Airlines
Deal found 14/7£371
Thu 4/913:00BOS - LHR
1 stop13h 45mIberia
Tue 23/911:30LHR - BOS
1 stop13h 20mIberia
Deal found 13/7£372
Mon 11/818:40BOS - LHR
Nonstop6h 50mJetBlue
Thu 4/908:25LHR - BOS
Nonstop7h 32mJetBlue
Deal found 14/7£377
Thu 28/822:25BOS - LHR
1 stop19h 30mTAP AIR PORTUGAL
Sun 7/906:00LHR - BOS
1 stop13h 20mTAP AIR PORTUGAL
Deal found 13/7£378
Sat 23/822:45BOS - LHR
Nonstop6h 45mDelta
Fri 29/806:15LHR - BOS
1 stop13h 50mDelta
Deal found 14/7£379
Wed 20/820:10BOS - LHR
Nonstop6h 40mFinnair
Sun 24/808:55LHR - BOS
Nonstop7h 30mFinnair
Deal found 14/7£383
Wed 17/920:50BOS - LHR
1 stop10h 05mIcelandair
Sun 28/913:05LHR - BOS
1 stop10h 45mIcelandair
Deal found 12/7£383
Wed 8/1010:40BOS - LHR
2 stops14h 50mAir Canada
Mon 13/1006:50LHR - BOS
2 stops14h 09mAir Canada
Deal found 13/7£386
Tue 2/914:40BOS - LHR
2 stops37h 05mAustrian Airlines
Mon 8/906:00LHR - BOS
1 stop12h 50mAustrian Airlines
Deal found 14/7£398
Wed 13/807:00MHT - LHR
1 stop21h 30mJetBlue
Wed 20/808:15LHR - MHT
1 stop20h 12mJetBlue
Deal found 14/7£468

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 15 July 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

Mon 3/11

19:55-11:20

1 stop10h 25m

London Heathrow

Sun 16/11

06:50-14:52

2 stops13h 02m

£368

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/9

07:25-18:55

Nonstop6h 30m

London Heathrow

Wed 10/9

17:35-20:10

Nonstop7h 35m

£369

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 22/10

18:30-09:35

1 stop10h 05m

London Heathrow

Mon 27/10

08:55-21:20

1 stop16h 25m

£371

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 4/9

13:00-07:45

1 stop13h 45m

London Heathrow

Tue 23/9

11:30-19:50

1 stop13h 20m

£372

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 11/8

18:40-06:30

Nonstop6h 50m

London Heathrow

Thu 4/9

08:25-10:57

Nonstop7h 32m

£377

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 28/8

22:25-22:55

1 stop19h 30m

London Heathrow

Mon 8/9

18:45-14:20

1 stop24h 35m

£378

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 23/8

22:45-10:30

Nonstop6h 45m

London Heathrow

Wed 27/8

06:15-15:05

1 stop13h 50m

£379

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 22/8

20:15-08:05

Nonstop6h 50m

London Heathrow

Sat 30/8

06:30-16:35

1 stop15h 05m

£380

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 20/8

20:10-07:50

Nonstop6h 40m

London Heathrow

Sun 24/8

08:55-11:25

Nonstop7h 30m

£383

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 17/9

20:50-11:55

1 stop10h 05m

London Heathrow

Sun 28/9

13:05-18:50

1 stop10h 45m

£383

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 48 results
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5

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.

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 15 July 2025.
Check out reviews from past customers who have flown with Delta, KLM, andAustrian Airlines from New Hampshire to London Heathrow Airport to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
814 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,657 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Overall

8.0

Entertainment

7.9

Boarding

8.2

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 TAP AIR PORTUGAL. According to our data, you can fly for as low as £155. Users have also found prices from £156 and £158 on Icelandair 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.

  • 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 London Heathrow Airport?

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

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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Dulles Intl to London City flights
Baltimore to Gatwick flights
O'Hare Intl to London City flights
Seattle to Gatwick flights
Minneapolis to Heathrow flights
Los Angeles to London City flights
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Reagan-National to Gatwick flights
San Francisco to Gatwick flights
Los Angeles to Gatwick flights
Midway to Heathrow flights
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Charlotte to Heathrow flights
Seattle to London City flights
San Francisco to London City flights
LaGuardia to Stansted flights
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Why should you use Cheapflights to find cheap flight tickets from New Hampshire to Heathrow?

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