Title: £304 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)

# £304 Cheap KLM flights from London to Boston (LCY→BOS)

[View £304 flight on Mon, 2 Mar 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LCY,to:BOS,departure:02/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:303.37&airProductToken=AQp1CjIIy5gBEgM5NzgYy8ABIICTASixw4YDMPLDhgM4TEAAWAFqBUxJR0hUcghWWTJRQkJMRwo_CMuYARIENjA2NhiAkwEgwZMBKMzEhgMwrMiGAzhWQAFYAWoFTElHSFRyCFZZMlFCQkxHegoIxJgBEgQ2MDY2EgoIARABGAEqAktMGAEiBAgBEAEoAigDKAQwDQ) 

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

Prices were available within the past 7 days and start at £304 for one-way flights and £479 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

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One way

Return

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

Sat, 5 Sept - Tue, 8 Sept

LCY

London

BOS

Boston

£479

Return

found 1 hour ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:05/09/2026TANYT&leg2=from:BOS,to:LCY,departure:08/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:478.39&airProductToken=AQpoCjIIy5gBEgM5ODYYy8ABIICTASje_JYDMJ_9lgM4TEAAWAFqBUxJR0hUcghWWUtSRDhMTQoyCMuYARIDNjE3GICTASDBkwEotf6WAzCGgpcDOFZAAVgBagVMSUdIVHIIVllLUkQ4TE0KdQo_CMuYARIENjA5NRjBkwEggJMBKPiilwMwnKaXAzhWQABYAWoFTElHSFRyCFZZSlJEOExNegoIxJgBEgQ2MDk1CjIIy5gBEgM5NzkYgJMBIMvAASiep5cDMN-nlwM4TEABWAFqBUxJR0hUcghWWUpSRDhMTRIKCAIQARgCKgJLTBgBIgQIARABKAIoAygEMA0)

## Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

[](https://www.expedia.co.uk/Flights-Search?leg1=from:LCY,to:BOS,departure:10/01/2026TANYT&leg2=from:BOS,to:LCY,departure:15/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE)

BOS

Logan Intl.

CheapestClosest

7 min

[Flights from £554

](https://www.expedia.co.uk/Flights-Search?leg1=from:LCY,to:BOS,departure:10/01/2026TANYT&leg2=from:BOS,to:LCY,departure:15/01/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

__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     | KLM                                                                                                                     |
| Distance            | 5242 km                                                                                                                 |

\*Available to Expedia members.