What’s the fastest layover option from Boston to London Heathrow Airport?

Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 10h 30m.

What’s the top layover airport for flights from Boston to London Heathrow Airport?

Reykjavik (KEF) – chosen by Cheapflights users on 60% of 1-stop itineraries from Boston to London Heathrow Airport on Cheapflights.

Which airport typically offers the quickest layover for flights from Boston to London Heathrow Airport?

Flights via Lisbon (LIS) offer the fastest connection on this route, with an average layover time of 3h 10m.

What’s the cheapest layover airport for flights from Boston to London Heathrow Airport?

Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $431.

How long is the flight from Boston to London Heathrow Airport?

There are many flights that can get you from Boston to London Heathrow Airport in 6h 35m. Fly via Delta, British Airways, or Virgin Atlantic to get the fastest option. Airlines will cover a distance of 3254 mi. All flights are typically nonstop.

What are the cheapest airlines flying from Boston to London Heathrow Airport round-trip?

According to our current data, SWISS ($283), TAP AIR PORTUGAL ($367), and JetBlue ($380) offers the cheapest pricing from Boston to London Heathrow Airport. SWISS is 55% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Boston to London Heathrow Airport one-way?

To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $212. KLM flights start at $223 while deals on Delta start at $228 one-way.

What is the cheapest day to fly from Boston to London Heathrow Airport?

Travelers seeking maximum savings on their Boston to London Heathrow Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to London Heathrow Airport

The most flights from BOS to LHR are scheduled on a Wednesday (36 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (23 on average).

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What are the cheapest flights from Boston to London Heathrow Airport?

The cheapest flight price from Boston to London Heathrow Airport is $213. On average you can expect to pay $1,829. The most popular route, (Boston Logan Intl - London Heathrow), can usually be booked for $375.

What are the most reliable airlines from Boston to London Heathrow Airport?

Before booking your flight to London Heathrow Airport from Boston, check out the most reliable airlines to get you to your destination on time: Aeromexico (100%), Gulf Air (87%), Air France( 84%).

What are the most popular airlines that fly from Boston to London Heathrow Airport?

The most popular airlines flying from Boston to London Heathrow Airport are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

Where are the most common layover locations when flying from Boston to London Heathrow Airport?

Boston to London Heathrow Airport flights have a layover in Reykjavik most often.

Where are the least popular layover locations for Boston to London Heathrow Airport flights?

Boston to London Heathrow Airport flights that have layovers will least frequently stop in Shannon.

What are some popular things to do or see while on a layover in Reykjavik?

Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Harpa, Hallgrímskirkja and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $56 per day.

What airport do you fly from for flights from Boston to London Heathrow?

Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to London Heathrow. 18 airlines have flights from Logan Intl to London Heathrow on a regular basis. Booking flights from Boston Logan Intl to London Heathrow should not be difficult; the airport handles an average of 31 outbound flights to London Heathrow per day.

Can I find deals for flights from Boston to Heathrow that include hotel bookings?

Yes. In addition to deals on Boston to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Boston to Heathrow?

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

Can I find deals for business class flights from Boston to Heathrow?

Yes. Cheapflights offers flight deals from Boston 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.

$200+ Cheap Flights from Boston to London Heathrow Airport

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Cheapflights Tip: The best prices from Boston Logan Intl to London Heathrow are usually found in January or October, booked 73 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Boston to Heathrow

Round-trip from	$463 (CrystalTravel)
One-way from	$200 (Flightnetwork)
Popular in	June
Cheapest in	January
Average price	$596
Good round-trip deal	$516 or less
Good one-way deal	$254 or less

From Boston Logan Intl to London Heathrow

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One-way flight from Boston Logan Intl to London Heathrow

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Highest demand for flights based on searches. 14% potential increase in price ($111 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Price to beat on a round-trip flight from Boston Logan Intl to London Heathrow.

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Price to beat on a one-way flight from Boston Logan Intl to London Heathrow.

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Find flight deals from Boston to Heathrow

Cheapest flights from Boston to Heathrow
Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

Wed 11/1911:55 pmBOS - LHR

Nonstop6h 30mVirgin Atlantic

Mon 11/241:05 pmLHR - BOS

Nonstop7h 55mVirgin Atlantic

Deal found 9/17

$463

Wed 10/18:15 pmBOS - LHR

Nonstop6h 50mVirgin Atlantic

Wed 10/1512:25 pmLHR - BOS

Nonstop7h 55mVirgin Atlantic

Deal found 9/17

$464

Tue 10/146:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Sun 10/199:50 amLHR - BOS

1 stop10h 40mAer Lingus

Deal found 9/16

$466

Wed 10/810:45 pmBOS - LHR

Nonstop6h 45mVirgin Atlantic

Wed 10/159:55 amLHR - BOS

1 stop13h 25mVirgin Atlantic

Deal found 9/17

$467

Mon 10/206:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Sun 11/210:00 amLHR - BOS

1 stop11h 50mAer Lingus

Deal found 9/18

$468

Thu 10/166:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Sat 10/189:50 amLHR - BOS

1 stop10h 40mAer Lingus

Deal found 9/17

$469

Thu 10/166:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Wed 10/229:50 amLHR - BOS

1 stop9h 50mAer Lingus

Deal found 9/17

$470

Sun 10/268:25 pmBOS - LHR

1 stop8h 50mAer Lingus

Fri 10/3112:10 pmLHR - BOS

1 stop11h 45mAer Lingus

Deal found 9/18

$471

Fri 10/36:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Tue 10/78:50 amLHR - BOS

1 stop10h 50mAer Lingus

Deal found 9/17

$472

Mon 10/136:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Mon 11/310:00 amLHR - BOS

1 stop11h 50mAer Lingus

Deal found 9/17

$473

Wed 10/226:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Mon 10/2710:00 amLHR - BOS

1 stop11h 50mAer Lingus

Deal found 9/17

$474

Thu 10/25:30 pmBOS - LHR

1 stop10h 35mAer Lingus

Fri 10/109:50 amLHR - BOS

1 stop9h 50mAer Lingus

Deal found 9/16

$475

Best flights from Boston to Heathrow
Discover carefully curated flight deals from Boston to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 19, 2025.

Mon 10/2010:45 pmBOS - LHR

Nonstop6h 45mDelta

Tue 10/288:55 amLHR - BOS

1 stop12h 25mDelta

Deal found 9/17

$480

Mon 11/246:55 pmBOS - LHR

Nonstop6h 35mBritish Airways

Wed 12/37:10 pmLHR - BOS

Nonstop7h 45mBritish Airways

Deal found 9/18

$489

Fri 10/248:15 pmBOS - LHR

Nonstop6h 50mVirgin Atlantic

Tue 10/288:55 amLHR - BOS

1 stop12h 25mVirgin Atlantic

Deal found 9/17

$495

Mon 11/103:40 pmBOS - LHR

1 stop10h 30mUnited Airlines

Sat 11/151:45 pmLHR - BOS

1 stop11h 35mUnited Airlines

Deal found 9/18

$500

Wed 11/197:12 pmBOS - LHR

Nonstop6h 43mJetBlue

Sun 11/239:20 amLHR - BOS

Nonstop7h 54mJetBlue

Deal found 9/18

$509

Tue 10/218:15 pmBOS - LHR

Nonstop6h 50mDelta

Tue 10/289:00 amLHR - BOS

1 stop12h 20mDelta

Deal found 9/17

$480

Tue 11/186:55 pmBOS - LHR

Nonstop6h 35mBritish Airways

Thu 11/275:05 pmLHR - BOS

Nonstop7h 40mBritish Airways

Deal found 9/18

$489

Sat 12/67:30 amBOS - LHR

Nonstop6h 30mBritish Airways

Wed 12/1011:40 amLHR - BOS

Nonstop7h 40mBritish Airways

Deal found 9/18

$504

Tue 12/27:10 pmBOS - LHR

Nonstop6h 40mDelta

Thu 12/119:00 amLHR - BOS

1 stop12h 20mDelta

Deal found 9/18

$511

Sat 12/67:30 amBOS - LHR

Nonstop6h 30mBritish Airways

Tue 12/97:10 pmLHR - BOS

Nonstop7h 45mBritish Airways

Deal found 9/18

$504

Sun 9/288:15 pmBOS - LHR

Nonstop6h 50mDelta

Wed 10/18:40 amLHR - BOS

1 stop14h 40mDelta

Deal found 9/17

$511

Mon 12/16:55 pmBOS - LHR

Nonstop6h 35mBritish Airways

Thu 4/308:10 pmLHR - BOS

Nonstop7h 25mBritish Airways

Deal found 9/18

$505

Last-minute flights from Boston to Heathrow
Discover last-minute flight deals from Boston to Heathrow. Data last updated September 19, 2025 and is based on user searches.

Wed 10/18:15 pmBOS - LHR

Nonstop6h 50mVirgin Atlantic

Wed 10/1512:25 pmLHR - BOS

Nonstop7h 55mVirgin Atlantic

Deal found 9/17

$464

Thu 10/25:30 pmBOS - LHR

1 stop10h 35mAer Lingus

Fri 10/109:50 amLHR - BOS

1 stop9h 50mAer Lingus

Deal found 9/16

$475

Thu 10/25:30 pmBOS - LHR

1 stop10h 35mAer Lingus

Thu 10/98:50 amLHR - BOS

1 stop10h 50mAer Lingus

Deal found 9/18

$476

Fri 10/36:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Tue 10/78:50 amLHR - BOS

1 stop10h 50mAer Lingus

Deal found 9/17

$472

Wed 10/810:45 pmBOS - LHR

Nonstop6h 45mVirgin Atlantic

Wed 10/159:55 amLHR - BOS

1 stop13h 25mVirgin Atlantic

Deal found 9/17

$467

Mon 10/136:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Mon 11/310:00 amLHR - BOS

1 stop11h 50mAer Lingus

Deal found 9/17

$473

Tue 10/146:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Sun 10/199:50 amLHR - BOS

1 stop10h 40mAer Lingus

Deal found 9/16

$466

Thu 10/166:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Sat 10/189:50 amLHR - BOS

1 stop10h 40mAer Lingus

Deal found 9/17

$469

Thu 10/166:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Mon 10/2012:00 pmLHR - BOS

1 stop11h 45mAer Lingus

Deal found 9/16

$470

Mon 10/206:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Sun 11/210:00 amLHR - BOS

1 stop11h 50mAer Lingus

Deal found 9/18

$468

Wed 10/226:35 pmBOS - LHR

1 stop9h 30mAer Lingus

Mon 10/2710:00 amLHR - BOS

1 stop11h 50mAer Lingus

Deal found 9/17

$474

Sun 10/268:25 pmBOS - LHR

1 stop8h 50mAer Lingus

Fri 10/317:50 amLHR - BOS

1 stop11h 05mAer Lingus

Deal found 9/17

$471

One-way flights from Boston to Heathrow
Search for one-way flight options from Boston to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 19, 2025.

Mon 10/610:40 pmBOS - LHR

1 stop18h 20mTAP AIR PORTUGAL

Deal found 9/17

$200

Fri 10/2410:45 pmBOS - LHR

1 stop32h 40mTAP AIR PORTUGAL

Deal found 9/18

$201

Sun 10/126:10 pmBOS - LHR

1 stop23h 45mTAP AIR PORTUGAL

Deal found 9/17

$202

Thu 10/25:19 pmBOS - LHR

1 stop11h 11mJetBlue

Deal found 9/17

$203

Sat 10/47:16 pmBOS - LHR

1 stop33h 14mJetBlue

Deal found 9/18

$204

Mon 12/83:40 pmBOS - LHR

1 stop25h 00mJetBlue

Deal found 9/17

$205

Sat 12/67:50 pmBOS - LHR

1 stop19h 55mJetBlue

Deal found 9/17

$206

Tue 10/144:00 pmBOS - LHR

3 stops35h 00mMultiple Airlines

Deal found 9/17

$207

Mon 2/28:10 pmBOS - LHR

1 stop19h 35mJetBlue

Deal found 9/17

$208

Tue 10/146:10 pmBOS - LHR

1 stop22h 50mTAP AIR PORTUGAL

Deal found 9/17

$209

Sun 11/211:55 pmBOS - LHR

Nonstop6h 30mVirgin Atlantic

Deal found 9/18

$210

Sat 12/68:00 pmBOS - LHR

Nonstop6h 50mVirgin Atlantic

Deal found 9/17

$211

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 10/20

10:45 pm-10:30 am

Nonstop6h 45m

London Heathrow

Tue 10/28

8:55 am-5:20 pm

1 stop12h 25m

$480

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 10/21

8:15 pm-8:05 am

Nonstop6h 50m

London Heathrow

Tue 10/28

9:00 am-5:20 pm

1 stop12h 20m

$480

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 11/24

6:55 pm-6:30 am

Nonstop6h 35m

London Heathrow

Wed 12/3

7:10 pm-9:55 pm

Nonstop7h 45m

$489

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 11/18

6:55 pm-6:30 am

Nonstop6h 35m

London Heathrow

Thu 11/27

5:05 pm-7:45 pm

Nonstop7h 40m

$489

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 10/24

8:15 pm-8:05 am

Nonstop6h 50m

London Heathrow

Tue 10/28

8:55 am-5:20 pm

1 stop12h 25m

$495

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 11/10

3:40 pm-7:10 am

1 stop10h 30m

London Heathrow

Sat 11/15

1:45 pm-8:20 pm

1 stop11h 35m

$500

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 12/6

7:30 am-7:00 pm

Nonstop6h 30m

London Heathrow

Wed 12/10

11:40 am-2:20 pm

Nonstop7h 40m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 12/6

7:30 am-7:00 pm

Nonstop6h 30m

London Heathrow

Tue 12/9

7:10 pm-9:55 pm

Nonstop7h 45m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 12/1

6:55 pm-6:30 am

Nonstop6h 35m

London Heathrow

Thu 4/30

8:10 pm-10:35 pm

Nonstop7h 25m

$505

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/19

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Sun 11/23

9:20 am-12:14 pm

Nonstop7h 54m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/18

Showing 1-10 of 24 results

The best insider tips for Boston to London Heathrow Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Boston to London Heathrow Airport trip

Airports

BOS

Use the FlyLogan App to pre-order food and access premium Wi-Fi, enhancing your departure experience from BOS.

LHR

Take the Heathrow Express for the fastest route to central London, reaching Paddington Station quickly and conveniently.

Our travel experts

Ramsey Qubein

Expert on LHR

Paul Rubio

Expert on BOS

Best time to book a flight from Boston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Boston with our price prediction graph.

Estimated round-trip 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 Boston to London Heathrow Airport

Prices

Airlines

How far ahead should I book a flight from Boston to London Heathrow Airport?

Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Boston to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $661). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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.

What is the cheapest time of day to fly from BOS to LHR?

When flying from Boston to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 6% versus a flight in the evening.

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, Virgin Atlantic, and American Airlines from Boston to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,964 reviews

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

7,964 reviews

Delta

8.0

Very good

7,964 reviews

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!

Virgin Atlantic

7.4

Good

664 reviews

Delta

8.0

Very good

7,964 reviews

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!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,964 reviews

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!

Iberia

7.0

Good

2,926 reviews

Delta

8.0

Very good

7,964 reviews

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!

British Airways

6.7

Okay

7,373 reviews

Delta

8.0

Very good

7,964 reviews

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

What airport do you fly from for flights from Boston to London Heathrow?
Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to London Heathrow. 18 airlines have flights from Logan Intl to London Heathrow on a regular basis. Booking flights from Boston Logan Intl to London Heathrow should not be difficult; the airport handles an average of 31 outbound flights to London Heathrow per day.
How long is the flight from Boston to London Heathrow Airport?
There are many flights that can get you from Boston to London Heathrow Airport in 6h 35m. Fly via Delta, British Airways, or Virgin Atlantic to get the fastest option. Airlines will cover a distance of 3254 mi. All flights are typically nonstop.
What are the cheapest airlines flying from Boston to London Heathrow Airport round-trip?
According to our current data, SWISS ($283), TAP AIR PORTUGAL ($367), and JetBlue ($380) offers the cheapest pricing from Boston to London Heathrow Airport. SWISS is 55% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Boston to London Heathrow Airport one-way?
To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $212. KLM flights start at $223 while deals on Delta start at $228 one-way.
What are the most reliable airlines from Boston to London Heathrow Airport?
Before booking your flight to London Heathrow Airport from Boston, check out the most reliable airlines to get you to your destination on time: Aeromexico (100%), Gulf Air (87%), Air France( 84%).
What are the cheapest flights from Boston to London Heathrow Airport?
The cheapest flight price from Boston to London Heathrow Airport is $213. On average you can expect to pay $1,829. The most popular route, (Boston Logan Intl - London Heathrow), can usually be booked for $375.
Where are the most common layover locations when flying from Boston to London Heathrow Airport?
Boston to London Heathrow Airport flights have a layover in Reykjavik most often.
What are some popular things to do or see while on a layover in Reykjavik?
Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Harpa, Hallgrímskirkja and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $56 per day.
Where are the least popular layover locations for Boston to London Heathrow Airport flights?
Boston to London Heathrow Airport flights that have layovers will least frequently stop in Shannon.
Can I find deals for flights from Boston to Heathrow that include hotel bookings?
Yes. In addition to deals on Boston to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Heathrow.
Can I find deals for business class flights from Boston to Heathrow?
Yes. Cheapflights offers flight deals from Boston 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 Boston to London Heathrow Airport?
Currently, November is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $661). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

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London Heathrow Airport to Amsterdam flights

Top 10 airlines flying from Boston to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
SWISS	Cheapest$283	Average$602	FlexibilityNo cancel fee	On-time79%
TAP AIR PORTUGAL	Cheapest$367	Average$442	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$380	Average$592	FlexibilityNo cancel fee	On-time62%
Virgin Atlantic	Cheapest$383	Average$624	FlexibilityNo cancel fee	On-time72%
KLM	Cheapest$383	Average$581	FlexibilityNo cancel fee	On-time75%
Air France	Cheapest$391	Average$586	FlexibilityNo cancel fee	On-time77%
British Airways	Cheapest$392	Average$630	FlexibilityNo cancel fee	On-time70%
Scandinavian Airlines	Cheapest$393	Average$657	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$396	Average$649	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$431	Average$666	FlexibilityNo cancel fee	On-time76%

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$200+ Cheap flights from Boston (BOS) to Heathrow (LHR)

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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Boston Logan Intl to London Heathrow are usually found in January or October, booked 73 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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Cheapest flights from Boston to HeathrowExplore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.

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Best time to book a flight from Boston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to London Heathrow Airport

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Weekly flight availability from Boston to London Heathrow Airport

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What’s the fastest layover option from Boston to London Heathrow Airport?

Which airport typically offers the quickest layover for flights from Boston to London Heathrow Airport?

Reviews of airlines servicing Heathrow

See what other customers who have flown with Delta, Virgin Atlantic, and American Airlines from Boston to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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What are the most reliable airlines from Boston to London Heathrow Airport?

What are the cheapest flights from Boston to London Heathrow Airport?

Where are the most common layover locations when flying from Boston to London Heathrow Airport?

What are some popular things to do or see while on a layover in Reykjavik?

Where are the least popular layover locations for Boston to London Heathrow Airport flights?

Can I find deals for flights from Boston to Heathrow that include hotel bookings?

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Alternative routes for Boston to Heathrow

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Top 10 airlines flying from Boston to Heathrow

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Cheapest flights from Boston to Heathrow
Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 19, 2025.