Title: £1,221 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)

# £1,221 Cheap KLM flights from London to Boston (LCY→BOS)

[View £1,221 flight on Sat, 23 May 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LCY,to:BOS,departure:23/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1220.67&airProductToken=AQqbAQoyCMuYARIDOTg0GMvAASCAkwEovN6NAzCC340DOEtAAFgBagVMSUdIVHIIS1lGUkI4TEEKMQjLmAESAzY0MRiAkwEgqVEozd-NAzCt440DOEtAAVgBagVMSUdIVHIIS1lGUkI4TEEKMgjLmAESBDU4NDEYqVEgwZMBKIzkjQMw5eSNAzhLQAFYAWoFTElHSFRyCEtZRlJCOExBEgoIAhABGAIqAktMGAEiBAgBEAEoAigDKAQwAQ)

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## KLM flights from London to Boston (LCY→BOS)

Prices were available within the past 7 days and start at £1,221 for one-way flights and £532 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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One way

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![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif)

Thu, 29 Jan - Mon, 2 Feb

LCY

London

BOS

Boston

£532

Return

found 1 day ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:29/01/2026TANYT&leg2=from:BOS,to:LCY,departure:02/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:531.51&airProductToken=AQppCjIIy5gBEgM5NzgYy8ABIICTASix24MDMPLbgwM4TEAAWAFqBUxJR0hUcghWWUFSRDhMQQozCMuYARIENjA2NhiAkwEgwZMBKMzcgwMwtuCDAzhWQAFYAWoFTElHSFRyCFZZQVJEOExBCmkKMwjLmAESBDYwOTUYwZMBIICTASiKkIQDMK6ThAM4VkAAWAFqBUxJR0hUcghWWUFSRDhMQQoyCMuYARIDOTgzGICTASDLwAEo-ZOEAzC6lIQDOExAAVgBagVMSUdIVHIIVllBUkQ4TEESCggCEAEYAioCS0wYASIECAEQASgCKAMoBDAN)

## Travel 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 |

\*Available to Expedia members.