LHR

$324 Find Cheap Flights from Massachusetts to London Heathrow Airport - 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 Heathrow departing on 7/19. 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 Heathrow Airport

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 Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to Heathrow 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 Heathrow

Mon, Nov 23 - Wed, Nov 25
United Airlines Logo
6:30 pm - 12:00 pm
BDL
-
LHR
12h 30m
1 stop
United Airlines Logo
6:50 am - 6:38 pm
LHR
-
BDL
16h 48m
2 stops
$759United Airlines
Sat, Nov 7 - Tue, Nov 10
United Airlines Logo
6:30 pm - 7:10 am
BDL
-
LHR
31h 40m
2 stops
United Airlines Logo
6:50 am - 11:57 pm
LHR
-
BDL
22h 07m
2 stops
$762United Airlines
Sat, Nov 7 - Tue, Nov 10
United Airlines Logo
6:30 pm - 7:55 am
BDL
-
LHR
32h 25m
1 stop
United Airlines Logo
6:50 am - 9:22 pm
LHR
-
BDL
19h 32m
2 stops
$764United Airlines
Sun, Sep 6 - Sun, Sep 13
Scandinavian Airlines Logo
5:40 pm - 5:40 pm
BOS
-
LHR
19h 00m
1 stop
Scandinavian Airlines Logo
9:05 pm - 3:35 pm
LHR
-
BOS
23h 30m
2 stops
$766Scandinavian Airlines
Mon, Aug 3 - Fri, Aug 21
Multiple Airlines Logo
8:50 pm - 11:55 am
BOS
-
LHR
10h 05m
1 stop
Multiple Airlines Logo
5:35 pm - 8:05 pm
LHR
-
BOS
7h 30mnonstop
$767Multiple Airlines
Sun, Oct 11 - Thu, Oct 15
Aer Lingus Logo
6:30 pm - 9:05 am
BOS
-
LHR
9h 35m
1 stop
Aer Lingus Logo
9:50 am - 3:40 pm
LHR
-
BOS
10h 50m
1 stop
$768Aer Lingus
Fri, Sep 11 - Sun, Sep 20
Multiple Airlines Logo
7:25 am - 6:55 pm
BOS
-
LHR
6h 30mnonstop
Multiple Airlines Logo
9:25 pm - 6:50 pm
LHR
-
BOS
26h 25m
1 stop
$769Multiple Airlines
Mon, Aug 24 - Fri, Sep 4
Scandinavian Airlines Logo
5:40 pm - 4:25 pm
BOS
-
LHR
17h 45m
2 stops
Scandinavian Airlines Logo
6:40 am - 3:35 pm
LHR
-
BOS
13h 55m
1 stop
$770Scandinavian Airlines
Fri, Sep 11 - Fri, Sep 18
Iberia Logo
9:50 pm - 9:35 am
BOS
-
LHR
6h 45mnonstop
Iberia Logo
11:30 am - 7:10 pm
LHR
-
BOS
12h 40m
1 stop
$772Iberia
Fri, Sep 4 - Sun, Sep 13
Aer Lingus Logo
9:15 pm - 12:40 pm
BOS
-
LHR
10h 25m
1 stop
Aer Lingus Logo
9:50 am - 2:55 pm
LHR
-
BOS
10h 05m
1 stop
$775Aer Lingus
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$324
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from West Tisbury to London

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

Insights shared by verified travelers who flew the route from Massachusetts to Heathrow 
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 Massachusetts to London Heathrow Airport flights

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

    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 Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport 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 Heathrow?

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

Everything you need to know for your flight to Heathrow

Information on your arrival and departure airports