Title: £300 Cheap Flights from Samui Intl. Airport to London (USM to LHR) - 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) # £300 Cheap Flights from Samui Intl. Airport (USM) to London (LHR) [View £300 flight on Sun, 10 May 2026](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:USM,to:LHR,departure:10/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:299.10&airProductToken=AQqDAQopCNCOARIDMTkyGNRkIMFSKMjOjAMwos-MAzhUQABYAXIIWjJBWkFTU1gKKgjDtAESBDMwMzYYwVIggmgosNGMAzDk0owDOEFAAVgBcghaMkFaQVNTWAoqCMO0ARIDMzAzGIJoIOuJASj01YwDMOzbjAM4WkABWAFyCFoyQVpBU1NYEgoIARABGAEqAkNaGAEiBAgBEAEoAigDKAQwAQ) ## Popular airlines from Samui Intl. Airport (USM) to Heathrow Airport (LHR) - ![](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:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EY"}}]) - ![](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:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"QR"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_OS.svg) Austrian Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"OS"}}]) - ![](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:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BR"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WY.svg) Oman Air [](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WY"}}]) - ![](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:LHR,departure:01/04/2026TANYT&leg2=from:LHR,to:USM,departure:08/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![](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\* - ![](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\* - ![](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 (LHR) Prices were available within the past 7 days and start at £300 for one-way flights and £830 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, 27 Jan - Thu, 28 Jan USM Koh Samui LHR London £830 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:27/01/2027TANYT&leg2=from:LHR,to:USM,departure:28/01/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:829.85&airProductToken=AQq6AQpACMyQARIENDYzNhjUZCCSaij1z6MDMOjQowM4S0AAWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNCOARIENDYzNgozCMyQARIDNzY5GJJqIIwVKPHSowMw_dijAzhLQAFYAWoIRUNPU0FWRVJyCEtYMFhEWU5DCkEIzJABEgQ0MTkyGIwVIOuJASjN2aMDMMXaowM4S0ABWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNaYARIENDE5Mgq6AQpBCMyQARIENDE5NxjriQEgjBUojt-jAzD836MDOEtAAFgBaghFQ09TQVZFUnIIS1gwWERZTkN6CgjWmAESBDQxOTcKMwjMkAESAzc2OBiMFSCSaijg4KMDMLXmowM4S0ABWAFqCEVDT1NBVkVScghLWDBYRFlOQwpACMyQARIENDYzMBiSaiDUZCja56MDMM3oowM4S0ABWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNCOARIENDYzMBIKCAIQARgCKgJMSBgBIgQIARABKAIoAygEMAs) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Fri, 22 May - Mon, 1 Jun USM Koh Samui LHR London £833 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:22/05/2026TANYT&leg2=from:LHR,to:USM,departure:01/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:832.49&airProductToken=AQqbAQoyCNCOARIDOTYzGNRkIJJqKIbSjQMw-dKNAzhIQABYAWoHRUNPTElURXIIV0RMSVQzU0cKMgjHjAESAzE2NhiSaiCBOCjQ1I0DMLXYjQM4V0ABWAFqB0VDT0xJVEVyCFdETElUM1NHCjEIx4wBEgE3GIE4IOuJASjk2Y0DMIPdjQM4V0ABWAFqB0VDT0xJVEVyCFdETElUM1NHEgoIARABGAEqAkdGGAEiBAgBEAEoAigEKAYwAQ) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Wed, 27 Jan - Thu, 28 Jan USM Koh Samui LHR London £837 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:27/01/2027TANYT&leg2=from:LHR,to:USM,departure:28/01/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:836.65&airProductToken=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) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Sat, 23 May - Sun, 31 May USM Koh Samui LHR London £838 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:23/05/2026TANYT&leg2=from:LHR,to:USM,departure:31/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:837.59&airProductToken=AQqbAQoyCNCOARIDMTY2GNRkIMFSKJHfjQMw3N-NAzhIQABYAWoHRUNPTElURXIIV0NMSVQzVEgKMgjHjAESAzE1MxjBUiCBOCi74I0DMO7jjQM4V0ABWAFqB0VDT0xJVEVyCFdDTElUM1RICjEIx4wBEgE3GIE4IOuJASiE5Y0DMKPojQM4V0ABWAFqB0VDT0xJVEVyCFdDTElUM1RICpsBCjEIx4wBEgEyGOuJASCBOCi8uI4DMMy7jgM4V0AAWAFqB0VDT0xJVEVyCFdDTElUM1RICjIIx4wBEgMxNTIYgTggwVIot72OAzDlwI4DOFdAAVgBagdFQ09MSVRFcghXQ0xJVDNUSAoyCNCOARIDMTMzGMFSINRkKNjBjgMwmcKOAzhZQAFYAWoHRUNPTElURXIIV0NMSVQzVEgSCggBEAEYASoCR0YYASIECAEQASgCKAQoBjAB) ![Gulf Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/gf.gif) Sat, 23 May - Sun, 31 May USM Koh Samui LHR London £845 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:23/05/2026TANYT&leg2=from:LHR,to:USM,departure:31/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:844.59&airProductToken=AQqoAQo_CMeMARIENDQ5NRjUZCDBUiiy3o0DMP3ejQM4V0AAWAFqB0VDT0xJVEVyCFdDTElUM1RIegoI0I4BEgQ0NDk1CjIIx4wBEgMxNTMYwVIggTgou-CNAzDu440DOFdAAVgBagdFQ09MSVRFcghXQ0xJVDNUSAoxCMeMARIBNxiBOCDriQEohOWNAzCj6I0DOFdAAVgBagdFQ09MSVRFcghXQ0xJVDNUSAqbAQoxCMeMARIBMhjriQEggTgovLiOAzDMu44DOFdAAFgBagdFQ09MSVRFcghXQ0xJVDNUSAoyCMeMARIDMTUyGIE4IMFSKLe9jgMw5cCOAzhXQAFYAWoHRUNPTElURXIIV0NMSVQzVEgKMgjQjgESAzEzMxjBUiDUZCjYwY4DMJnCjgM4WUABWAFqB0VDT0xJVEVyCFdDTElUM1RIEgoIARABGAEqAkdGGAEiBAgBEAEoAigEKAYwAQ) ![Lufthansa](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LH.gif) Wed, 27 Jan - Thu, 28 Jan USM Koh Samui LHR London £846 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:27/01/2027TANYT&leg2=from:LHR,to:USM,departure:28/01/2027TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:845.85&airProductToken=AQq6AQpACMyQARIENDYzNhjUZCCSaij1z6MDMOjQowM4S0AAWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNCOARIENDYzNgozCMyQARIDNzY5GJJqIIwVKPHSowMw_dijAzhLQAFYAWoIRUNPU0FWRVJyCEtYMFhEWU5DCkEIzJABEgQ0MTkyGIwVIOuJASjN2aMDMMXaowM4S0ABWAFqCEVDT1NBVkVScghLWDBYRFlOQ3oKCNaYARIENDE5MgqtAQo0CMyQARIDOTE1GOuJASClBCj63qMDMNnfowM4S0AAWAFqCEVDT1NBVkVScghLWDBYRFlOQwozCMyQARIDNzgwGKUEIJJqKLjgowMwl-ajAzhLQAFYAWoIRUNPU0FWRVJyCEtYMFhEWU5DCkAIzJABEgQ0NjMwGJJqINRkKNrnowMwzeijAzhLQAFYAWoIRUNPU0FWRVJyCEtYMFhEWU5DegoI0I4BEgQ0NjMwEgoIAhABGAIqAkxIGAEiBAgBEAEoAigDKAQwCw) ![Gulf Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/gf.gif) Thu, 24 Sept - Mon, 12 Oct USM Koh Samui LHR London £853 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:24/09/2026TANYT&leg2=from:LHR,to:USM,departure:12/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:852.59&airProductToken=AQpjCiAIx4wBEgQ0NDk1GNRkIMFSKLLRmAMw_dGYAzhXQABYAQofCMeMARIDMTUzGMFSIIE4KLvTmAMw7taYAzhXQAFYAQoeCMeMARIBNxiBOCDriQEohNiYAzCj25gDOFdAAVgBCmMKHgjHjAESATIY64kBIIE4KPybmgMwjJ-aAzhXQABYAQofCMeMARIDMTUyGIE4IMFSKPegmgMwpaSaAzhXQAFYAQogCMeMARIENDQwMBjBUiDUZCiYpZoDMNmlmgM4V0ABWAESCggBEAEYASoCR0YYASIECAEQASgEMAE) ![Austrian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/OS.gif) Tue, 1 Dec - Wed, 2 Dec USM Koh Samui LHR London £856 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:01/12/2026TANYT&leg2=from:LHR,to:USM,departure:02/12/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:855.95&airProductToken=AQqrAQpACM-mARIEODY3MBjUZCDBUijUy54DMJ_MngM4S0AAWAFqCEVDT1NBVkVScghLWDBYSVlOQ3oKCNCOARIEODY3MAoxCM-mARIBNhjBUiCVIijEzZ4DMPvSngM4S0ABWAFqCEVDT1NBVkVScghLWDBYSVlOQwo0CM-mARIDMzM5GJUiIOuJASio054DMLTUngM4S0ABWAFqCEVDT1NBVkVScghLWDBYSVlOQwqrAQo0CM-mARIDMzQwGOuJASCVIiio2J4DMKrZngM4S0AAWAFqCEVDT1NBVkVScghLWDBYSVlOQwoxCM-mARIBNRiVIiDBUijD3p4DMKDjngM4S0ABWAFqCEVDT1NBVkVScghLWDBYSVlOQwpACM-mARIEODY2ORjBUiDUZCid5J4DMOPkngM4S0ABWAFqCEVDT1NBVkVScghLWDBYSVlOQ3oKCNCOARIEODY2ORIKCAEQARgBKgJPUxgBIgQIARABKAIoAygEMAE) ![Qatar Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QR.gif) Thu, 21 May - Tue, 26 May USM Koh Samui LHR London £860 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:21/05/2026TANYT&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:859.99&airProductToken=AQpnCiEI0aQBEgQ0NDExGNRkIMeaASjvyI0DMKvJjQM4V0AAWAEKIAjRpAESAzg0NxjHmgEgwzsoisqNAzCQzY0DOE9AAVgBCiAI0aQBEgMxMDcYwzsg64kBKNPOjQMwhtKNAzhPQAFYAQpnCiAI0aQBEgMxMTIY64kBIMM7KOD_jQMw9YKOAzhPQABYAQogCNGkARIDODQyGMM7IMeaASiphI4DMM2HjgM4T0ABWAEKIQjRpAESBDQ0MDgYx5oBINRkKLuIjgMw8oiOAzhXQAFYARIKCAEQARgBKgJRUhgBIgQIARABKAQwAQ) ![Emirates](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EK.gif) Tue, 12 May - Mon, 25 May USM Koh Samui LHR London £910 Return found 1 day ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:USM,to:LHR,departure:12/05/2026TANYT&leg2=from:LHR,to:USM,departure:25/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:909.18&airProductToken=AQqbAQo7CMWWARIENDQ5NhjUZCDHmgEokOSMAzDM5IwDOFRAAFgBagJZUHIIVFhFRVBUSDF6CgjQjgESBDQ0OTYKLgjFlgESAzM5NxjHmgEg4w0oreaMAzCf6YwDOFRAAFgBagJZUHIIVFhFRVBUSDEKLAjFlgESATEY4w0g64kBKMHrjAMwje-MAzhUQABYAWoCWVByCFRYRUVQVEgxCpsBCiwIxZYBEgEyGOuJASDjDSiF940DMKn6jQM4VEAAWAFqAllQcghUWEVFUFRIMQouCMWWARIDMzc4GOMNIMeaASir-40DMKz-jQM4VEAAWAFqAllQcghUWEVFUFRIMQo7CMWWARIENDUwNBjHmgEg1GQonICOAzDTgI4DOFRAAFgBagJZUHIIVFhFRVBUSDF6CgjQjgESBDQ1MDQSCggCEAEYASoCRUsYASIECAEQASgCKAMoBDAL) ## 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:LGW,departure:01/04/2026TANYT&leg2=from:LGW,to:USM,departure:03/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) LGW Gatwick Cheapest 52 min [Flights from £1,062 ](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LGW,departure:01/04/2026TANYT&leg2=from:LGW,to:USM,departure:03/04/2026TANYT&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:01/04/2026TANYT&leg2=from:LCY,to:USM,departure:05/04/2026TANYT&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 £2,655 ](https://www.expedia.co.uk/Flights-Search?leg1=from:USM,to:LCY,departure:01/04/2026TANYT&leg2=from:LCY,to:USM,departure:05/04/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Frequently asked questions ### How much is a flight from USM to LHR? ### Do I need to pay a cancellation fee if I cancel my flight from Samui Airport to London Heathrow? ### How do I find cheap flights from USM to Heathrow Airport (LHR) that have flexible change policies? ### How far is the flight from USM to LHR? ### Which airlines fly direct from USM to London Heathrow? ### Are Ko Samui Airport to LHR flight tickets cheaper when they're purchased at the last minute? ## Travel information | Origin airport | Samui Intl. Airport | | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Destination airport | Heathrow | | Airlines serving | Air France, Austrian Airlines, British Airways, Cathay Pacific, EVA Airways, Emirates, Etihad Airways, Finnair, Gulf Air, KLM, Lufthansa, Oman Air, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines | | Return price | £830 | | Distance | 9836 km | ## Book with confidence # 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 Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Samui Intl. Airport to Heathrow. 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 Heathrow (LHR) 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 Heathrow start at just £830 and range up to £910\. 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 Heathrow 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. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight. ## Explore a world of travel with Expedia - Accommodation - Flights - [London Hotels ](https://www.expedia.co.uk/London-Hotels.d178279.Travel-Guide-Hotels) - [Flights to London ](https://www.expedia.co.uk/Cheap-Flights-To-London.d178279.Travel-Guide-Flights) - [Flights from Abidjan (ABJ) to London (LON) ](https://www.expedia.co.uk/lp/flights/abj/lon/abidjan-to-london) - [Flights from Aberdeen (ABZ) to London (LON) ](https://www.expedia.co.uk/lp/flights/abz/lon/aberdeen-to-london) - [Flights from Accra (ACC) to London (LON) ](https://www.expedia.co.uk/lp/flights/acc/lon/accra-to-london) - [Flights from Izmir (ADB) to London (LON) ](https://www.expedia.co.uk/lp/flights/adb/lon/izmir-to-london) - [Flights from Málaga (AGP) to London (LON) ](https://www.expedia.co.uk/lp/flights/agp/lon/malaga-to-london) - [Flights from Alicante (ALC) to London (LON) ](https://www.expedia.co.uk/lp/flights/alc/lon/alicante-to-london) - 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