Title: £302 Cheap Flights from Samui Intl. Airport to London (USM to LON) - Expedia.co.uk ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178279/2a1d5619-553b-468a-a773-e81b88024741.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £302 Cheap Flights from Samui Intl. Airport (USM) to London (LON) [View £302 flight on Fri, 30 Jan 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:USM,to:LGW,departure:30/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:302.00&airProductToken=AQqDAQopCNCOARIDMTgwGNRkIMFSKNzpgwMwp-qDAzhZQABYAXIIWjJBWkFTU1gKKgjDtAESBDMwODAYwVIgwnEopuyDAzCW7oMDOEFAAVgBcghaMkFaQVNTWAoqCMO0ARIDNjUzGMJxIMuxASiD8YMDMLD2gwM4WkABWAFyCFoyQVpBU1NYEgoIARABGAEqAkNaGAEiBAgBEAEoAigDKAQwAQ) - [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 Add a place to stay Direct flights only ## Popular airlines from Samui Intl. Airport (USM) to London - ![Qatar Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![Singapore Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SQ.svg) Singapore Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SQ"}}]) - ![EVA Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BR.svg) EVA Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BR"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Etihad Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EY.svg) Etihad Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EY"}}]) - ![Thai Airways International](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TG.svg) Thai Airways International [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TG"}}]) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LON,departure:26/01/2026TANYT&leg2=from:LON,to:USM,departure:02/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![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) ## Cheap Flights from Samui Intl. Airport (USM) to London (LON) Prices were available within the past 7 days and start at £302 for one-way flights and £778 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Wed, 21 Jan - Sun, 25 Jan USM Koh Samui LHR London £778 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:21/01/2026TANYT&leg2=from:LHR,to:USM,departure:25/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:777.49&airProductToken=AQqDAQopCNCOARIDMTgwGNRkIMFSKLyEgwMwh4WDAzhLQABYAXIIVjJBU1JZU1gKKgjDtAESBDMwMzYYwVIggmgo3oaDAzCNiIMDOEFAAVgBcghWMkFTUllTWAoqCMO0ARIDMzAzGIJoIOuJASjUi4MDMNuRgwM4VkABWAFyCFYyQVNSWVNYCoIBCioIw7QBEgMzMDQY64kBIIJoKIi1gwMw2LqDAzhWQABYAXIIVjJBU1JZU1gKKQjDtAESAzM2MRiCaCDBUijku4MDMKK9gwM4QUABWAFyCFYyQVNSWVNYCikI0I4BEgMxMDUYwVIg1GQo-MCDAzC-wYMDOFRAAVgBcghWMkFTUllTWBIKCAEQARgBKgJDWhgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Thu, 22 Jan - Mon, 26 Jan USM Koh Samui LHR London £778 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:22/01/2026TANYT&leg2=from:LHR,to:USM,departure:26/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:777.89&airProductToken=AQqDAQopCNCOARIDMTgwGNRkIMFSKNyPgwMwp5CDAzhLQABYAXIIVjJBU1JZU1gKKgjDtAESBDMwMzYYwVIggmgo_pGDAzCtk4MDOEFAAVgBcghWMkFTUllTWAoqCMO0ARIDMzAzGIJoIOuJASj0loMDMPucgwM4VkABWAFyCFYyQVNSWVNYCoMBCioIw7QBEgMzMDQY64kBIIJoKKjAgwMw-MWDAzhWQABYAXIIVjJBU1JZU1gKKgjDtAESBDMwMzUYgmggwVIopMiDAzDdyYMDOEFAAVgBcghWMkFTUllTWAopCNCOARIDMTA3GMFSINRkKKLMgwMwgc2DAzhUQAFYAXIIVjJBU1JZU1gSCggBEAEYASoCQ1oYASIECAEQASgCKAMoBDAB) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Fri, 15 May - Tue, 26 May USM Koh Samui LHR London £790 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:15/05/2026TANYT&leg2=from:LHR,to:USM,departure:26/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:789.89&airProductToken=AQqCAQopCNCOARIDMTkyGNRkIMFSKOiGjQMwwoeNAzhHQABYAXIIVjJBU1JZU1gKKQjDtAESAzM2MhjBUiCCaCiQjI0DMMSNjQM4QUABWAFyCFYyQVNSWVNYCioIw7QBEgMzMDMYgmgg64kBKICOjQMw-JONAzhWQAFYAXIIVjJBU1JZU1gKggEKKgjDtAESAzMwNBjriQEggmgo9oWOAzCyi44DOFZAAFgBcghWMkFTUllTWAopCMO0ARIDMzYxGIJoIMFSKPWMjgMwpI6OAzhBQAFYAXIIVjJBU1JZU1gKKQjQjgESAzEwMRjBUiDUZCiJko4DMMqSjgM4R0ABWAFyCFYyQVNSWVNYEgoIARABGAEqAkNaGAEiBAgBEAEoAigDKAQwAQ) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Thu, 30 Apr - Fri, 8 May USM Koh Samui LGW London £814 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LGW,departure:30/04/2026TANYT&leg2=from:LGW,to:USM,departure:08/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:813.88&airProductToken=AQqbAQoyCNCOARIDOTYzGNRkIJJqKMbaiwMwuduLAzhIQABYAWoHRUNPTElURXIIV0NMSVQxU0cKMgjHjAESAzE2NhiSaiCBOCiQ3YsDMI3hiwM4V0ABWAFqB0VDT0xJVEVyCFdDTElUMVNHCjEIx4wBEgE5GIE4IMuxASiV4osDMMPliwM4V0ABWAFqB0VDT0xJVEVyCFdDTElUMVNHCpsBCjEIx4wBEgE4GMuxASCBOCixtowDMLy5jAM4V0AAWAFqB0VDT0xJVEVyCFdDTElUMVNHCjIIx4wBEgMxNjUYgTggkmoojruMAzDkvowDOFdAAVgBagdFQ09MSVRFcghXQ0xJVDFTRwoyCNCOARIDOTY4GJJqINRkKJDBjAMwg8KMAzhIQAFYAWoHRUNPTElURXIIV0NMSVQxU0cSCggBEAEYASoCR0YYASIECAEQASgCKAQoBjAB) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Fri, 12 Jun - Tue, 16 Jun USM Koh Samui LGW London £822 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LGW,departure:12/06/2026TANYT&leg2=from:LGW,to:USM,departure:16/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:821.88&airProductToken=AQq4AQpACMywARIENDE4MxjUZCDBUijZvI8DMKS9jwM4S0AAWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNCOARIENDE4MwozCMywARIDMTgxGMFSILk8KP69jwMwv8OPAzhLQAFYAWoIRUNPU0FWRVJyCEtYMFhEWU5DCj8IzLABEgM0MzAYuTwgy7EBKJnJjwMw_cmPAzhLQAFYAWoIRUNPU0FWRVJyCEtYMFhEWU5DegkIspgBEgM0MzAKrQEKNAjMsAESAzQzMRjLsQEguTwomeyPAzD97I8DOEtAAFgBaghFQ09TQVZFUnIIS1gwWERZTkMKMwjMsAESAzE4MBi5PCDBUijb748DMOr0jwM4S0ABWAFqCEVDT1NBVkVScghLWDBYRFlOQwpACMywARIENDE3MBjBUiDUZCjY9Y8DMJn2jwM4S0ABWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNCOARIENDE3MBIKCAIQARgCKgJMWBgBIgQIARABKAIoAygEMAs) ![Emirates](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EK.gif) Thu, 7 May - Thu, 14 May USM Koh Samui STN London £856 Return found 4 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:STN,departure:07/05/2026TANYT&leg2=from:STN,to:USM,departure:14/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:855.70&airProductToken=AQqZAQo6CMWWARIENDYwOBjUZCCSaijVqowDMMirjAM4VEAAWAFqAllQcghUWEVOUFNHMXoKCNCOARIENDYwOAotCMWWARIDMzU1GJJqIOMNKKysjAMw-K-MAzhUQABYAWoCWVByCFRYRU5QU0cxCiwIxZYBEgI2NRjjDSDybCjEs4wDMIu3jAM4VEAAWAFqAllQcghUWEVOUFNHMQqZAQosCMWWARICNjYY8mwg4w0ow_uMAzDs_owDOFRAAFgBagJZUHIIVFhFTlBTRzEKLQjFlgESAzM0OBjjDSCSaii8_4wDMI2DjQM4VEAAWAFqAllQcghUWEVOUFNHMQo6CMWWARIENDYwORiSaiDUZCj_hY0DMPKGjQM4VEAAWAFqAllQcghUWEVOUFNHMXoKCNCOARIENDYwORIKCAEQARgBKgJFSxgBIgQIARABKAIoAygEMAs) ![Austrian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/OS.gif) Mon, 25 May - Sun, 7 Jun USM Koh Samui LHR London £862 Return found 9 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:25/05/2026TANYT&leg2=from:LHR,to:USM,departure:07/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:861.15&airProductToken=AQpjCiAIz6YBEgQ4Njc0GNRkIMFSKI_3jQMw2veNAzhLQABYAQodCM-mARIBOBjBUiCVIijI-I0DMNf9jQM4S0ABWAEKIAjPpgESAzMzNxiVIiDriQEok4OOAzCkhI4DOEtAAVgBCmMKIAjPpgESAzM0MBjriQEglSIorIWPAzCuho8DOEtAAFgBCh0Iz6YBEgE3GJUiIMFSKI-NjwMw9pGPAzhLQAFYAQogCM-mARIEODY2MxjBUiDUZCjkko8DMKWTjwM4S0ABWAESCggBEAEYASoCT1MYASIECAEQASgEMAE) ![Qatar Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QR.gif) Tue, 3 Mar - Thu, 14 May USM Koh Samui LGW London £872 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LGW,departure:03/03/2026TANYT&leg2=from:LGW,to:USM,departure:14/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:871.61&airProductToken=AQqtAQpACNGkARIENDQzMxjUZCCSaijLy4YDML7MhgM4V0AAWAFqCEVDTEFTU0lDcghPSlNHUDRSRXoKCNCOARIENDQzMwozCNGkARIDOTQ3GJJqIMM7KN_QhgMwv9SGAzhPQAFYAWoIRUNMQVNTSUNyCE9KU0dQNFJFCjQI0aQBEgMzMjkYwzsgy7EBKMvVhgMwg9mGAzhPQAFYAWoIRUNMQVNTSUNyCE9KU0dQNFJFCq8BCjQI0aQBEgMzMzAYy7EBIMM7KOD4jAMw8PuMAzhPQABYAWoIRUNMQVNTSUNyCE9MVEhQNFJFCjQI0aQBEgM4NDIYwzsgx5oBKK79jAMw0oCNAzhPQAFYAWoIRUNMQVNTSUNyCE9MVEhQNFJFCkEI0aQBEgQ0NDA4GMeaASDUZCi7gY0DMPKBjQM4V0ABWAFqCEVDTEFTU0lDcghPTFRIUDRSRXoKCNCOARIENDQwOBIKCAEQARgBKgJRUhgBIgQIARABKAIoBCgGMAE) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Thu, 22 Jan - Mon, 26 Jan USM Koh Samui LHR London £888 Return found 5 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:22/01/2026TANYT&leg2=from:LHR,to:USM,departure:26/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:887.95&airProductToken=AQqlAQo9CMGMARIENDM3ORjUZCDHMiiYi4MDMNuMgwM4UkAAWAFqBUxJR0hUcghSR1NESTVMQXoKCNCOARIENDM3OQowCMGMARIDMTg1GMcyIOIwKPCPgwMwvZaDAzhSQAFYAWoFTElHSFRyCFJHU0RJNUxBCjIIwYwBEgQxMzM0GOIwIOuJASiml4MDMPuXgwM4TEABWAFqBUxJR0hUcghSR1NESTVMQQqlAQoyCMGMARIEMTY4MRjriQEg4jAonLqDAzDxuoMDOExAAFgBagVMSUdIVHIIUkdTREk1TEEKMAjBjAESAzE4MhjiMCCSaijpu4MDMNzBgwM4UkABWAFqBUxJR0hUcghSR1NESTVMQQo9CMGMARIEODAzMhiSaiDUZCiaw4MDMI3EgwM4UkABWAFqBUxJR0hUcghSR1NESTVMQXoKCNCOARIEODAzMhIKCAIQARgCKgJBRhgBIgQIARABKAIoAygEMA0) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Sun, 10 May - Tue, 26 May USM Koh Samui LHR London £907 Return found 9 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:10/05/2026TANYT&leg2=from:LHR,to:USM,departure:26/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:906.15&airProductToken=AQpmCiAIzJABEgQ0NjQ5GNRkIMFSKIfOjAMw4c6MAzhUQABYAQofCMyQARIDNzczGMFSIIwVKLvPjAMw49SMAzhUQAFYAQohCMyQARIEMjQ3NhiMFSDriQEok9mMAzCQ2owDOFRAAVgBCmYKIQjMkAESBDI0NzkY64kBIIwVKPKDjgMw6oSOAzhLQABYAQofCMyQARIDNzcyGIwVIMFSKMSFjgMwxIqOAzhLQAFYAQogCMyQARIENDYyOBjBUiDUZCiei44DMN-LjgM4S0ABWAESCggBEAEYASoCTEgYASIECAEQASgEMAE) ## Alternative airports near London Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LHR,departure:26/01/2026TANYT&leg2=from:LHR,to:USM,departure:08/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LHR Heathrow Cheapest 28 min [Flights from £943 ](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LHR,departure:26/01/2026TANYT&leg2=from:LHR,to:USM,departure:08/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LGW,departure:26/01/2026TANYT&leg2=from:LGW,to:USM,departure:08/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick 52 min [Flights from £949 ](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LGW,departure:26/01/2026TANYT&leg2=from:LGW,to:USM,departure:08/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:STN,departure:26/01/2026TANYT&leg2=from:STN,to:USM,departure:08/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) STN Stansted 51 min [Flights from £1,700 ](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:STN,departure:26/01/2026TANYT&leg2=from:STN,to:USM,departure:08/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LCY,departure:26/01/2026TANYT&leg2=from:LCY,to:USM,departure:23/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LCY London City Closest 21 min [Flights from £967 ](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LCY,departure:26/01/2026TANYT&leg2=from:LCY,to:USM,departure:23/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) __Flight from Samui Intl. Airport to London route information__ | Origin airport | Samui Intl. Airport | | ------------------- | ------------------- | | Destination airport | Heathrow | | Return price | £777 | | Distance | 9836 km | ## Compare flights from Samui Intl. Airport to London easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Samui Intl. Airport to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to LON-All Airports in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Samui Intl. Airport to LON-All Airports. To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. Grab a great deal on your flight from Samui Intl. Airport (USM) to LON-All Airports (LON) The easiest way to view the best deals on flights from Samui Intl. Airport to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Samui Intl. Airport to LON-All Airports start at just £778 and range up to £907\. To find an even better deal, try - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Samui Intl. Airport and London - booking your flight during January, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper Why you should book your Samui Intl. Airport to London flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Samui Intl. Airport to LON-All Airports for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you. Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. 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