Title: £723 Cheap KLM flights from London to Boston (LCY→BOS) - Expedia.co.uk

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# £723 Cheap KLM flights from London to Boston (LCY→BOS)

[View £723 flight on Tue, 10 Nov 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LCY,to:BOS,departure:10/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:722.77&airProductToken=AQp1CjIIy5gBEgM5OTYYy8ABIICTASi155wDMPbnnAM4S0AAWAFqBUxJR0hUcghLWUNSQjhMQQo_CMuYARIENjA2NhiAkwEgwZMBKIzunAMw8fGcAzhLQAFYAWoFTElHSFRyCEtZQ1JCOExBegoIxJgBEgQ2MDY2EgoIARABGAEqAktMGAEiBAgBEAEoAigDKAQwDQ) 

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

Prices were available within the past 7 days and start at £723 for one-way flights and £555 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)

Sun, 12 Apr - Wed, 8 Jul

LCY

London

BOS

Boston

£555

Return

found 6 hours ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:12/04/2026TANYT&leg2=from:BOS,to:LCY,departure:08/07/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:554.71&airProductToken=AQpoCjIIy5gBEgM5ODgYy8ABIICTASj9kooDML6TigM4TEAAWAFqBUxJR0hUcghWWUU4RDhMTQoyCMuYARIDNjE3GICTASDBkwEo9ZOKAzDGl4oDOFZAAVgBagVMSUdIVHIIVllFOEQ4TE0KdQo_CMuYARIENjA5NRjBkwEggJMBKLjpkQMw3OyRAzhWQABYAWoFTElHSFRyCFZZRThEOExNegoIxJgBEgQ2MDk1CjIIy5gBEgM5NzcYgJMBIMvAASi77ZEDMPftkQM4TEABWAFqBUxJR0hUcghWWUU4RDhMTRIKCAEQARgBKgJLTBgBIgQIARABKAIoAygEMA0)

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

Thu, 8 Oct - Thu, 15 Oct

LCY

London

BOS

Boston

£558

Return

found 3 hours ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:08/10/2026TANYT&leg2=from:BOS,to:LCY,departure:15/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:557.71&airProductToken=AQpoCjIIy5gBEgM5OTAYy8ABIICTASiq8pkDMObymQM4TEAAWAFqBUxJR0hUcghWWUpSRDhMTQoyCMuYARIDNjE3GICTASDBkwEo9fyZAzDGgJoDOFZAAVgBagVMSUdIVHIIVllKUkQ4TE0KdQo_CMuYARIENjA5NRjBkwEggJMBKJ3DmgMwvMaaAzhWQABYAWoFTElHSFRyCFZZSlJEOExNegoIxJgBEgQ2MDk1CjIIy5gBEgM5NzkYgJMBIMvAASi-x5oDMP_HmgM4TEABWAFqBUxJR0hUcghWWUpSRDhMTRIKCAEQARgBKgJLTBgBIgQIARABKAIoAygEMA0)

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

Thu, 1 Oct - Thu, 15 Oct

LCY

London

BOS

Boston

£562

Return

found 5 hours ago

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:01/10/2026TANYT&leg2=from:BOS,to:LCY,departure:15/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:561.91&airProductToken=AQqnAQoyCMuYARIDOTgwGMvAASCAkwEovZ-ZAzCIoJkDOExAAFgBagVMSUdIVHIIVllKUkQ4TE0KMQjLmAESAzY0MRiAkwEgqVEo-6CZAzDbpJkDOFZAAVgBagVMSUdIVHIIVllKUkQ4TE0KPgjLmAESBDc2NjAYqVEgwZMBKPirmQMwyqyZAzhWQAFYAWoFTElHSFRyCFZZSlJEOExNegoIxJgBEgQ3NjYwCnUKPwjLmAESBDYwOTUYwZMBIICTASidw5oDMLzGmgM4VkAAWAFqBUxJR0hUcghWWUpSRDhMTXoKCMSYARIENjA5NQoyCMuYARIDOTgxGICTASDLwAEo9ceaAzC2yJoDOExAAVgBagVMSUdIVHIIVllKUkQ4TE0SCggBEAEYASoCS0wYASIECAEQASgCKAMoBDAN)

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

Wed, 2 Sept - Sat, 19 Sept

LCY

London

BOS

Boston

£564

Return

just found

[](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LCY,to:BOS,departure:02/09/2026TANYT&leg2=from:BOS,to:LCY,departure:19/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:563.71&airProductToken=AQpoCjIIy5gBEgM5ODQYy8ABIICTASj82ZYDMMLalgM4TEAAWAFqBUxJR0hUcghWWUpSRDhMTQoyCMuYARIDNjE3GICTASDBkwEo1dyWAzCm4JYDOFZAAVgBagVMSUdIVHIIVllKUkQ4TE0KaAoyCMuYARIDNjE4GMGTASCAkwEouaCYAzDTo5gDOFZAAFgBagVMSUdIVHIIVllLUkQ4TE0KMgjLmAESAzk3ORiAkwEgy8ABKJ6umAMw366YAzhMQAFYAWoFTElHSFRyCFZZS1JEOExNEgoIARABGAEqAktMGAEiBAgBEAEoAigDKAQwDQ)

## 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:10/04/2026TANYT&leg2=from:BOS,to:LCY,departure:14/04/2026TANYT&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 £1,111

](https://www.expedia.co.uk/Flights-Search?leg1=from:LCY,to:BOS,departure:10/04/2026TANYT&leg2=from:BOS,to:LCY,departure:14/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) 

## 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     | KLM                                                                                                                     |
| Distance            | 5242 km                                                                                                                 |

\*Available to Expedia members.