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$194+ Cheap flights from Massachusetts to London (LON)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LON
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap flight deals from Massachusetts to London

Cheapest flights from Massachusetts to London
Explore the most affordable flight options available from Massachusetts to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:15 pmBOS - LHR
Nonstop6h 45mBritish Airways
Thu 1/151:30 pmLHR - BOS
Nonstop7h 45mBritish Airways
Deal found 12/15$503
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/142:15 pmBOS - LHR
1 stop11h 25mMultiple Airlines
Tue 12/236:40 pmLHR - BOS
1 stop30h 40mMultiple Airlines
Deal found 12/14$506
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:40 pmBOS - LHR
1 stop20h 55mUnited Airlines
Wed 1/1412:05 pmLHR - BOS
1 stop12h 55mUnited Airlines
Deal found 12/14$507
This Delta deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:10 pmBOS - LHR
Nonstop6h 40mDelta
Wed 1/149:00 amLHR - BOS
1 stop12h 20mDelta
Deal found 12/14$508
This KLM deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:55 pmBOS - LHR
Nonstop6h 30mKLM
Thu 1/156:30 amLHR - BOS
1 stop12h 00mKLM
Deal found 12/15$509
This Mytrip deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:40 pmBOS - LHR
1 stop20h 55mAir Canada
Tue 1/209:00 amLHR - BOS
2 stops15h 42mAir Canada
Deal found 12/14$510
This Iberia deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:15 pmBOS - LHR
Nonstop6h 45mIberia
Sun 5/1012:20 pmLHR - BOS
1 stop12h 30mIberia
Deal found 12/15$511
This KLM deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:10 pmBOS - LHR
Nonstop6h 40mKLM
Fri 1/99:40 amLHR - BOS
Nonstop7h 50mKLM
Deal found 12/15$514
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:40 pmBOS - LHR
1 stop10h 30mUnited Airlines
Fri 1/99:00 amLHR - BOS
2 stops35h 09mUnited Airlines
Deal found 12/15$515
This Kiwi.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/301:40 pmBOS - LHR
1 stop26h 40mAustrian Airlines
Thu 1/812:05 pmLHR - BOS
1 stop11h 52mAustrian Airlines
Deal found 12/14$516
This Booking.com deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:40 pmBOS - LHR
1 stop20h 55mMultiple Airlines
Tue 1/206:40 pmLHR - BOS
1 stop30h 40mMultiple Airlines
Deal found 12/14$517
This Kiwi.com deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:07 pmBOS - LHR
1 stop10h 43mLufthansa
Thu 12/1812:05 pmLHR - BOS
1 stop11h 43mLufthansa
Deal found 12/13$518

Find flight deals from Massachusetts to London

Keep the following information in mind while searching for Massachusetts to London flight deals. Data was last updated December 16, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$503
(Cheapflightsfares)

One-way from

$194
(Netflights)

Popular in

June

Cheapest in

October

Average price

$734

Good round-trip deal

$477 or less

Good one-way deal

$268 or less
Provider with most accurate pricing for Boston Logan Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-London (LON) flights.
Search Deals
From Massachusetts to London (LON)
Search Deals
One-way flight from Massachusetts to London (LON)
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($99 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Massachusetts to London (LON).
Search Deals
Price to beat on a one-way flight from Massachusetts to London (LON).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Massachusetts to London 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 2,558,603 searches. Data last updated December 16, 2025.
Use the filters below to find and compare flights from Massachusetts to London that are best for you.

Fly from

Massachusetts

Fly to

London

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 2/24

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Wed 3/4

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 3/1

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Sat 3/7

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 1/28

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Tue 2/24

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 2/20

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Sat 2/28

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 2/25

7:12 pm-6:55 am

Nonstop6h 43m

London Heathrow

Sun 3/1

9:20 am-12:16 pm

Nonstop7h 56m

$504

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Sat 3/7

10:15 am-9:50 am

3 stops18h 35m

London Stansted

Sun 3/15

9:45 pm-6:02 pm

2 stops24h 17m

$506

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 1/19

10:15 am-9:20 pm

3 stops30h 05m

London Stansted

Wed 1/21

6:45 pm-1:35 pm

2 stops23h 50m

$519

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 1/19

1:00 pm-6:15 pm

3 stops24h 15m

London Luton

Wed 1/28

8:30 am-8:20 pm

2 stops16h 50m

$520

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Mon 3/2

7:50 pm-2:00 pm

1 stop13h 10m

London Luton

Mon 3/9

8:00 am-6:50 pm

1 stop14h 50m

$521

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Mon 3/2

10:15 am-2:05 pm

2 stops22h 50m

London Stansted

Mon 3/9

11:55 am-7:35 pm

2 stops35h 40m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Massachusetts to London

Have a flexible travel schedule? Discover the best time to fly to London from Massachusetts 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 Massachusetts to London

What is the cheapest month to book a flight from Massachusetts to London?

Currently, August is the cheapest month in which you can book a flight from Massachusetts to London (average of $311). Flying from Massachusetts to London in June is currently the most expensive (average of $561). 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 MA to LON?

Find hourly flight availability from Massachusetts to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Massachusetts to London in the evening. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Massachusetts to London?

Use this chart to determine the cheapest time to fly round-trip from Massachusetts to London. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Massachusetts to London

Explore weekly flight availability from Massachusetts to London. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 16, 2025.

The most flights from USMA to LON are scheduled on a Monday (32 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 on average).

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to London. 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 Massachusetts to London?

    A quick flight from Massachusetts to London can take about 6h 43m. JetBlue provides one of the quickest options available for as low as $504. Massachusetts and London are separated by a distance of 3254 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Massachusetts to London one-way?

    One-way options have recently been found by users for as low as $149 on Scandinavian Airlines. Other airlines that offer cheap prices include Icelandair from $161 and TAP AIR PORTUGAL from $178 one-way.

  • What are the most popular routes from Massachusetts to London?

    When deciding which route to take from Massachusetts to London consider Boston Logan Intl - London Heathrow, Boston Logan Intl - London Gatwick or Boston Logan Intl - London City as they are the most popular.

  • What are the most reliable airlines from Massachusetts to London?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Massachusetts to London on time: KLM (89%), Air France (89%), Malaysia Airlines (88%).

  • What are the cheapest flights from Massachusetts to London?

    Looking at all options, your cheapest flight can be booked for $201. While the most popular route (Boston Logan Intl - London Heathrow) can be booked for $377 on average, our data indicates $1,945 when flying from Massachusetts to London.

  • Can I find deals for flights from Massachusetts to London that include hotel bookings?

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

  • How can I find direct flights from Massachusetts to London?

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

  • Can I find deals for business class flights from Massachusetts to London?

    Yes. Cheapflights offers flight deals from Massachusetts to London 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 Massachusetts to London?

    Currently, August is the cheapest month in which you can book a flight from Massachusetts to London (average of $311). Flying from Massachusetts to London in June is currently the most expensive (average of $561). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Ilford
Hounslow
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Winchester
Croydon
Orpington
Watford
Hayes
Borehamwood
Aylesbury
Chipping Norton
Horley
Kingston upon Thames
Wembley
Folkestone
Eastbourne

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Alternative routes for Massachusetts to London

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Massachusetts to London

Discover the top 10 airlines that operate flights from Massachusetts to London. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$320Average$643FlexibilityNo cancel feeOn-time62%
SWISSCheapest$320Average$623FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$367Average$450FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$382Average$645FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$393Average$657FlexibilityNo cancel feeOn-time77%
KLMCheapest$401Average$624FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$412Average$596FlexibilityNo cancel feeOn-time67%
Air FranceCheapest$434Average$618FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$456Average$580FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$458Average$629FlexibilityNo cancel feeOn-time71%

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