$230 Find Cheap Flights from Massachusetts to London - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to London

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Useful Info
Flight Deals

Cheap Flights from Massachusetts to London

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Massachusetts to London

Sat, Aug 8 - Thu, Aug 27
Multiple Airlines Logo
8:10 pm - 10:00 am
BDL
-
LGW
32h 50m
1 stop
Multiple Airlines Logo
2:00 pm - 11:38 am
LGW
-
BDL
26h 38m
1 stop
$650Multiple Airlines
Mon, Aug 10 - Thu, Aug 27
Multiple Airlines Logo
11:31 am - 10:00 am
BDL
-
LGW
17h 29m
1 stop
Multiple Airlines Logo
2:00 pm - 11:38 am
LGW
-
BDL
26h 38m
1 stop
$666Multiple Airlines
Mon, Nov 9 - Wed, Nov 11
United Airlines Logo
1:00 pm - 7:55 am
ALB
-
LHR
13h 55m
1 stop
United Airlines Logo
6:50 am - 4:55 pm
LHR
-
ALB
15h 05m
2 stops
$759United Airlines
Mon, Nov 9 - Wed, Nov 11
United Airlines Logo
2:35 pm - 8:25 am
ALB
-
LHR
12h 50m
2 stops
United Airlines Logo
6:50 am - 4:55 pm
LHR
-
ALB
15h 05m
2 stops
$763United Airlines
Thu, Sep 3 - Tue, Sep 8
Aer Lingus Logo
9:15 pm - 12:40 pm
BOS
-
LHR
10h 25m
1 stop
Aer Lingus Logo
9:50 am - 3:40 pm
LHR
-
BOS
10h 50m
1 stop
$771Aer Lingus
Sat, Jul 18 - Wed, Jul 22
Icelandair Logo
8:50 pm - 11:45 am
BOS
-
LGW
9h 55m
1 stop
Icelandair Logo
3:40 pm - 9:45 pm
LGW
-
BOS
11h 05m
1 stop
$771Icelandair
Sun, Nov 1 - Mon, Nov 30
TAP AIR PORTUGAL Logo
10:45 pm - 8:35 pm
BOS
-
LGW
16h 50m
1 stop
TAP AIR PORTUGAL Logo
9:35 pm - 2:40 pm
LGW
-
BOS
22h 05m
2 stops
$772TAP AIR PORTUGAL
Fri, Aug 14 - Tue, Aug 25
Aer Lingus Logo
5:25 pm - 9:05 am
BOS
-
LHR
10h 40m
1 stop
Aer Lingus Logo
12:00 pm - 6:50 pm
LHR
-
BOS
11h 50m
1 stop
$775Aer Lingus
Mon, Aug 17 - Mon, Aug 31
TAP AIR PORTUGAL Logo
6:05 pm - 8:25 pm
BOS
-
LGW
21h 20m
2 stops
TAP AIR PORTUGAL Logo
12:05 pm - 8:20 pm
LGW
-
BOS
13h 15m
1 stop
$777TAP AIR PORTUGAL
Tue, Jul 7 - Thu, Jul 23
Icelandair Logo
8:50 pm - 11:55 am
BOS
-
LHR
10h 05m
1 stop
Icelandair Logo
1:05 pm - 6:50 pm
LHR
-
BOS
10h 45m
1 stop
$778Icelandair
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$230
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Hartford to London Gatwick Airport

Flights from Massachusetts to London: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Massachusetts to London 
alyciaFlew with American Airlines
BOS
-
LHR
Mar 2026
Long walk between terminals in boston Don't cut connections close
MarilynFlew with British Airways
BOS
-
LHR
Feb 2026
Meeting a friend at Heathrow was difficult as there are many terminals so far apart. Access to the train was great and an easy way to get to the downtown area.
Verified travelerFlew with British Airways
BOS
-
LHR
Jan 2024
Leave plenty of time if connecting in London as most connecting flights are in a different terminal which requires a bus or tram ride. Also if you’re not at the gate 30 minutes ahead they will not let you on the plane. Apparently this is a Heathrow not airline rule.

FAQs for booking flights from Massachusetts to London

  • How does KAYAK find such low prices on flights from Massachusetts to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Massachusetts to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Massachusetts with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Slough
Hayes
Richmond
Wembley
Luton
Crawley
Ilford
Eastbourne
Watford
Bedford
Colchester
Guildford
Twickenham
Kingston upon Thames
Ipswich
St. Albans
Maidenhead
Newbury
Harrow

Everything you need to know for your flight to London

Cabin class types available on flights to Massachusetts

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.