Title: CA $790 Cheap Flights from London (LON) to Samui Intl. Airport (USM) - Expedia.ca ![](https://images.trvl-media.com/place/6035013/26cceeb4-7a5f-4132-838c-9d0a557db5d2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6035013/26cceeb4-7a5f-4132-838c-9d0a557db5d2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $790 Cheap Flights from London (LON) to Samui Intl. Airport (USM) [View CA $790 flight on Tue, Apr 21, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:LHR,to:USM,departure:21/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:789.10&airProductToken=AQqDAQoqCMO0ARIDMzA0GOuJASCCaCiW_IoDMNKBiwM4VkAAWAFyCFYyQVpBU1hTCioIw7QBEgQzMDM1GIJoIMFSKOeEiwMwloaLAzhWQAFYAXIIVjJBWkFTWFMKKQjQjgESAzEwNRjBUiDUZCjCiIsDMIOJiwM4R0ABWAFyCFYyQVpBU1hTEgoIARABGAEqAkNaGAEiBAgBEAEoAigDKAQwAQ) - [Roundtrip](?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 Returning Add a place to stay Add a car Direct flights only ## Popular airlines from London to Samui Intl. Airport (USM) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SQ.svg) Singapore Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SQ"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_QR.svg) Qatar Airways [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&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_BR.svg) EVA Airways [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&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_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EY.svg) Etihad Airways [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&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_CX.svg) Cathay Pacific [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"CX"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TG.svg) Thai Airways International [](https://www.expedia.ca/Flights-Search?leg1=from:LON,to:USM,departure:02/03/2026TANYT&leg2=from:USM,to:LON,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TG"}}]) - ![](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 30% 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.ca/login) ## Cheap flights from London (LON) to Samui Intl. Airport (USM) Prices were available within the past 7 days and start at CA $790 for one-way flights and CA $1,237 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Mon, Jun 8 - Tue, Jun 30 LGW London USM Koh Samui CA $1,237 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LGW,to:USM,departure:08/06/2026TANYT&leg2=from:USM,to:LGW,departure:30/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1236.10&airProductToken=AQqPAQoqCMywARIDNDMxGMuxASC5PCiPko8DMP2SjwM4S0AAWAFyCEtYMFhKWU5DCikIzLABEgMxODAYuTwgwVIo25WPAzDqmo8DOEtAAVgBcghLWDBYSllOQwo2CMywARIENDE3MBjBUiDUZCjYm48DMJmcjwM4S0ABWAFyCEtYMFhKWU5DegoI0I4BEgQ0MTcwCo8BCjYIzLABEgQ0MTc4GNRkIJJqKJWKkQMwiIuRAzhLQABYAXIIS1gwWEpZTkN6CgjQjgESBDQxNzgKKQjMsAESAzE3NxiSaiC5PCj9jJEDMPqSkQM4S0ABWAFyCEtYMFhKWU5DCioIzLABEgM0MzAYuTwgy7EBKNSTkQMwuJSRAzhLQAFYAXIIS1gwWEpZTkMSCggBEAEYASoCTFgYASIECAEQASgCKAMoBDAB) ![Etihad Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EY.GIF) Sun, Apr 19 - Wed, May 6 LHR London USM Koh Samui CA $1,466 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:19/04/2026TANYT&leg2=from:USM,to:LHR,departure:06/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1465.20&airProductToken=AQpkCh8IxbIBEgI2MhjriQEggD0o3t-KAzCH44oDOEVAAFgBCh8IxbIBEgM0MDgYgD0gwVIoyOOKAzDT5ooDOEVAAVgBCiAIxbIBEgQ3NjU1GMFSINRkKMbnigMwjOiKAzhFQAFYAQpkCiAIxbIBEgQ3Njg2GNRkIMFSKMSajAMwj5uMAzhFQABYAQofCMWyARIDNDAzGMFSIIA9KIecjAMwg5-MAzhFQAFYAQofCMWyARICNjcYgD0g64kBKOKfjAMwqaOMAzhFQAFYARIKCAEQARgBKgJFWRgBIgQIARABKAQwAQ) ![Etihad Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EY.GIF) Tue, Apr 21 - Mon, May 4 LHR London USM Koh Samui CA $1,488 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:21/04/2026TANYT&leg2=from:USM,to:LHR,departure:04/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1487.20&airProductToken=AQqmAQoxCMWyARICNjQY64kBIIA9KNn4igMw_fuKAzhFQABYAWoGWUJBU0lDcghFTE4ySUgyOQoxCMWyARIDNDA0GIA9IMFSKNz8igMw4v-KAzhFQAFYAWoGWUJBU0lDcghFTE4ySUgyOQo-CMWyARIENzY2MhjBUiDUZCjQgIsDMJGBiwM4RUABWAFqBllCQVNJQ3IIRUxOMklIMjl6CgjQjgESBDc2NjIKmQEKMQjQjgESAzEwMBjUZCDBUiiEhIwDMM-EjAM4VEAAWAFqBllCQVNJQ3IIVUxOMklIMjkKMQjFsgESAzQwMxjBUiCAPSjHhYwDMMOIjAM4VUABWAFqBllCQVNJQ3IIVUxOMklIMjkKMQjFsgESAjYxGIA9IOuJASj8jowDMMiSjAM4VUABWAFqBllCQVNJQ3IIVUxOMklIMjkSCggBEAEYASoCRVkYASIECAEQASgCKAMoBDAB) ![Etihad Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/EY.GIF) Tue, Apr 21 - Mon, May 4 LHR London USM Koh Samui CA $1,503 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:21/04/2026TANYT&leg2=from:USM,to:LHR,departure:04/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1502.20&airProductToken=AQqmAQoxCMWyARICNjQY64kBIIA9KNn4igMw_fuKAzhFQABYAWoGWVZBTFVFcghFTE4ySVYyOQoxCMWyARIDNDA0GIA9IMFSKNz8igMw4v-KAzhFQAFYAWoGWVZBTFVFcghFTE4ySVYyOQo-CMWyARIENzY2MhjBUiDUZCjQgIsDMJGBiwM4RUABWAFqBllWQUxVRXIIRUxOMklWMjl6CgjQjgESBDc2NjIKmQEKMQjQjgESAzEwMBjUZCDBUiiEhIwDMM-EjAM4VEAAWAFqBllWQUxVRXIIVUxOMklWMjkKMQjFsgESAzQwMxjBUiCAPSjHhYwDMMOIjAM4VUABWAFqBllWQUxVRXIIVUxOMklWMjkKMQjFsgESAjYxGIA9IOuJASj8jowDMMiSjAM4VUABWAFqBllWQUxVRXIIVUxOMklWMjkSCggBEAEYASoCRVkYASIECAEQASgCKAMoBDAB) ![Gulf Air](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/gf.gif) Mon, Jun 8 - Tue, Jun 30 LHR London USM Koh Samui CA $1,504 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:08/06/2026TANYT&leg2=from:USM,to:LHR,departure:30/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1503.10&airProductToken=AQqNAQooCMeMARIBNhjriQEggTgokZiPAzChm48DOFdAAFgBcghXQ0xJVE9HQgopCMeMARIDMTUyGIE4IMFSKNeijwMwhaaPAzhXQAFYAXIIV0NMSVRPR0IKNgjHjAESBDQ0MDAYwVIg1GQo-KaPAzC5p48DOFdAAVgBcghXQ0xJVE9HQnoKCNCOARIENDQwMAqAAQopCNCOARIDOTYzGNRkIJJqKOaIkQMw2YmRAzhIQABYAXIIV0NMSVRPR0IKKQjHjAESAzE2NhiSaiCBOCiwi5EDMJWPkQM4V0ABWAFyCFdDTElUT0dCCigIx4wBEgE3GIE4IOuJASjEkJEDMOOTkQM4V0ABWAFyCFdDTElUT0dCEgoIARABGAEqAkdGGAEiBAgBEAEoAigDKAQwAQ) ![Singapore Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SQ.gif) Mon, Jun 8 - Tue, Jun 30 LHR London USM Koh Samui CA $1,613 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:08/06/2026TANYT&leg2=from:USM,to:LHR,departure:30/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1612.60&airProductToken=AQqEAQo6CNOiARIDMzE5GOuJASCSaii3l48DMM2djwM4TkAAWAFqDUVjb25vbXkgVmFsdWVyCU4yNUdCUkxQTwpGCNOiARIEODU4NhiSaiDUZCiTno8DMIafjwM4TkABWAFqDUVjb25vbXkgVmFsdWVyCU4yNUdCUkxQT3oKCNSkARIEODU4NgqCAQpFCNOiARIEODM0MRjUZCCSaijEhpEDMLeHkQM4VkAAWAFqDEVjb25vbXkgTGl0ZXIJVjI1R0JSTFBPegoI1KQBEgQ4MzQxCjkI06IBEgMzMTgYkmog64kBKPOHkQMwto6RAzhWQAFYAWoMRWNvbm9teSBMaXRlcglWMjVHQlJMUE8SCggCEAEYASoCU1EYASIECAEQASgCKAMoBDAP) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Mon, Jun 8 - Tue, Jun 30 LCY London USM Koh Samui CA $1,677 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LCY,to:USM,departure:08/06/2026TANYT&leg2=from:USM,to:LCY,departure:30/06/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1676.90&airProductToken=AQqaAQo1CMywARIDNDU3GMvAASC5PCj6k48DMN6UjwM4U0AAWAFyCFNYMFhKWU5DegkIspgBEgM0NTcKKQjMsAESAzE4MBi5PCDBUijblY8DMOqajwM4U0ABWAFyCFNYMFhKWU5DCjYIzLABEgQ0MTcyGMFSINRkKJScjwMw1ZyPAzhTQAFYAXIIU1gwWEpZTkN6CgjQjgESBDQxNzIKmgEKNgjMsAESBDQxNzgY1GQgkmoolYqRAzCIi5EDOFdAAFgBcghXWDBYSllOQ3oKCNCOARIENDE3OAopCMywARIDMTc3GJJqILk8KP2MkQMw-pKRAzhXQAFYAXIIV1gwWEpZTkMKNQjMsAESAzQ2MBi5PCDLwAEo6JORAzDMlJEDOFdAAVgBcghXWDBYSllOQ3oJCLKYARIDNDYwEgoIARABGAEqAkxYGAEiBAgBEAEoAigDKAQwAQ) ![EVA Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BR.gif) Sun, Mar 8 - Sun, Mar 15 LHR London USM Koh Samui CA $1,695 Roundtrip found 19 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:08/03/2026TANYT&leg2=from:USM,to:LHR,departure:15/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1694.10&airProductToken=AQpfCicIwqQBEgI2OBjriQEgwVIooI2HAzDckocDOFZAAFgBcgZWTFJaVUsKNAjCpAESBDM4OTkYwVIg1GQorpmHAzCNmocDOFNAAVgBcgZWTFJaVUt6CgjQjgESBDM4OTkKXwo0CMKkARIEMzg5MhjUZCDBUii30ocDMILThwM4WUAAWAFyBlZMUlpVS3oKCNCOARIEMzg5MgonCMKkARICNjcYwVIg64kBKNTUhwMw-dqHAzhWQAFYAXIGVkxSWlVLEgoIARABGAEqAkJSGAEiBAgBEAEoAigDKAQwAQ) ![Cathay Pacific](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/CX.gif) Mon, Apr 20 - Sat, May 2 LHR London USM Koh Samui CA $1,776 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:20/04/2026TANYT&leg2=from:USM,to:LHR,departure:02/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1775.30&airProductToken=AQpECiAIw7ABEgMyNTYY64kBIMcyKIPwigMw8fWKAzhOQABYAQogCMOwARIENjUwMxjHMiDUZCjQ9ooDMJj4igM4TkABWAEKRAogCMOwARIENjUwMhjUZCDHMiin8IsDMPTxiwM4VkAAWAEKIAjDsAESAzI1NxjHMiDriQEopfmLAzD3_4sDOFZAAVgBEgoIARABGAEqAkNYGAEiBAgBEAEoBDAB) ![Qatar Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/QR.gif) Tue, Apr 21 - Mon, May 4 LHR London USM Koh Samui CA $1,815 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:LHR,to:USM,departure:21/04/2026TANYT&leg2=from:USM,to:LHR,departure:04/05/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1814.40&airProductToken=AQqtAQo0CNGkARIDMTEyGOuJASDDOyiA9ooDMJ_5igM4T0AAWAFqCEVDTEFTU0lDcghPTEdCUDFSRQozCNGkARIDODMwGMM7IMFSKMT6igMwxf2KAzhPQAFYAWoIRUNMQVNTSUNyCE9MR0JQMVJFCkAI0aQBEgQ0MzE3GMFSINRkKO_-igMwtf-KAzhXQAFYAWoIRUNMQVNTSUNyCE9MR0JQMVJFegoI0I4BEgQ0MzE3CqsBCkAI0aQBEgQ0MzI4GNRkIMFSKISEjAMwz4SMAzhRQABYAWoIRUNMQVNTSUNyCFFMR0JQMVJFegoI0I4BEgQ0MzI4CjMI0aQBEgM4MzEYwVIgwzsovYWMAzDIiIwDOFFAAVgBaghFQ0xBU1NJQ3IIUUxHQlAxUkUKMgjRpAESATEYwzsg64kBKImJjAMwvIyMAzhRQAFYAWoIRUNMQVNTSUNyCFFMR0JQMVJFEgoIARABGAEqAlFSGAEiBAgBEAEoAigDKAQwAQ) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.ca/deals?rfrr=FTG_SPRING_PROMO_) __Flight from London to Samui Intl. Airport (LGW - USM) route information__ | Origin airport | Gatwick | | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Destination airport | Samui Intl. Airport | | Airlines serving | British Airways, Cathay Pacific, EVA Airways, Emirates, Etihad Airways, Finnair, KLM, Lufthansa, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Thai Airways International, Turkish Airlines | | Roundtrip price | CA $1,236 | | Distance | 9826 km | ## England to Koh Samui Flights **The easy way to book your flights from London to Samui Intl. Airport** With Expedia, it’s simple to find and book flights to Samui Intl. Airport from London whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Samui Intl. Airport, too. Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from London to Samui Intl. Airport today, tomorrow, or this week. **Save dollars with cheap flights from LON-All Airports, LON to Samui Intl. Airport, USM** Sort your search results by price to find great deals on your flight from London to Samui Intl. Airport—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Samui Intl. Airport from London currently is just CA $1,237 rising to CA $1,815\. Here are more money-saving tips: - Fly in June when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Samui Intl. Airport - Avoid peak season and weekends when flights can cost more - Early morning and late-night flights are sometimes cheaper, so try varying your travel times - One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! **Reasons to choose Expedia for your flight to Samui Intl. Airport from London** Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Samui Intl. Airport with Expedia today. \*Available to Expedia members.