Title: £832 Cheap KLM flights from London to Boston (LCY→BOS) - Expedia.co.uk ![Boston](https://images.trvl-media.com/place/178239/8970bbdd-3367-4cf8-9ec8-fe9a12776371.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178239/8970bbdd-3367-4cf8-9ec8-fe9a12776371.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £832 Cheap KLM flights from London to Boston (LCY→BOS) [View £832 flight on Thu, 5 Feb 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LCY,to:BOS,departure:05/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:831.27&airProductToken=AQp1CjIIy5gBEgM5NzgYy8ABIICTASiRqoQDMNKqhAM4S0AAWAFqBUxJR0hUcghLWUFSQjhMQQo_CMuYARIENjA2NhiAkwEgwZMBKKyrhAMwka-EAzhLQAFYAWoFTElHSFRyCEtZQVJCOExBegoIxJgBEgQ2MDY2EgoIAhABGAIqAktMGAEiBAgBEAEoAigDKAQwDQ) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only - ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* - ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## KLM flights from London to Boston (LCY→BOS) Prices were available within the past 7 days and start at £832 for one-way flights and £517 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Wed, 18 Mar - Tue, 31 Mar LCY London BOS Boston £517 Return found 3 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:18/03/2026TANYT&leg2=from:BOS,to:LCY,departure:31/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:516.51&airProductToken=AQpoCjIIy5gBEgM5ODQYy8ABIICTASi4-IcDMPn4hwM4TEAAWAFqBUxJR0hUcghWWUFSRDhMQQoyCMuYARIDNjE3GICTASDBkwEoqvuHAzD7_ocDOFZAAVgBagVMSUdIVHIIVllBUkQ4TEEKdQo_CMuYARIENjA5NRjBkwEggJMBKN2PiQMw_JKJAzhWQABYAWoFTElHSFRyCFZZQVJEOExBegoIxJgBEgQ2MDk1CjIIy5gBEgM5NzcYgJMBIMvAASjbk4kDMJeUiQM4TEABWAFqBUxJR0hUcghWWUFSRDhMQRIKCAIQARgCKgJLTBgBIgQIARABKAIoAygEMA0) Flight from London to Boston route information | Origin airport | London City | | --- | --- | | Destination airport | Logan Intl. | | Airlines serving | Aer Lingus, British Airways, Delta, ITA Airways, Iberia, KLM, Lufthansa, Swiss International Air Lines, Virgin Atlantic | | Popular airline | Aer Lingus | | Distance | 5242 km | ![](https://forever.travel-assets.com/flex/flexmanager/images/2025/11/05/BEX-BF-25_FR-DE-MX-UK_1_Desktop.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## Black Friday Sale Save up to 40% on select hotels. [Book now](https://expedia.co.uk/cheap-deals?rfrr=FTG_BF_PROMO_) ## Explore a world of travel with Expedia \*Available to Expedia members.