Title: Cheap flights from Bangkok to Samui Intl. Airport from $147 (DMK to USM) - Expedia.com ![](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) # $147 Cheap Flights from Bangkok (DMK) to Samui Intl. Airport (USM) [View $147 flight on Thu, Jun 11, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:DMK,to:USM,departure:6/11/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:146.10&airProductToken=AQonCiUI0I4BEgM0NTMYg1Mg1GQogbOPAzDbs48DOEhAAFgBcgRITldXEgoIAhABGAIqAlBHGAEiBAgBEAEoAigDKAQwAQ) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers 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 Don Mueang Intl. Airport (DMK) to Samui Intl. Airport (USM) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PG.svg) Bangkok Airways [](https://www.expedia.com/Flights-Search?leg1=from:DMK,to:USM,departure:3/19/2026TANYT&leg2=from:USM,to:DMK,departure:3/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PG"}}]) - ![](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 OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## Cheap Flights from Bangkok to Samui Intl. Airport (DMK-USM) Prices were available within the past 7 days and start at $147 for one-way flights and $299 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Mon, May 11 - Mon, May 18 DMK Bangkok USM Koh Samui $299 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:5/11/2026TANYT&leg2=from:USM,to:DMK,departure:5/18/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:298.70&airProductToken=AQonCiUI0I4BEgM0NTUYg1Mg1GQow9iMAzCd2YwDOEhAAFgBcgRITldXCicKJQjQjgESAzQ1MhjUZCCDUyj_o40DMNmkjQM4SEAAWAFyBEhOV1cSCggCEAEYAioCUEcYASIECAEQASgCKAMoBDAB) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Thu, Jun 25 - Sun, Jun 28 DMK Bangkok USM Koh Samui $302 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:6/25/2026TANYT&leg2=from:USM,to:DMK,departure:6/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:301.90&airProductToken=AQonCiUI0I4BEgM0NTUYg1Mg1GQo49KQAzC905ADOEhAAFgBcgRITldXCicKJQjQjgESAzQ1MBjUZCCDUyib75ADMPXvkAM4SEAAWAFyBEhOV1cSDAgCEAEYAioCUEcyABgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Tue, Apr 21 - Thu, Apr 23 DMK Bangkok USM Koh Samui $310 Roundtrip found 1 hour ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:4/21/2026TANYT&leg2=from:USM,to:DMK,departure:4/23/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:309.70&airProductToken=AQonCiUI0I4BEgM0NTUYg1Mg1GQow_eKAzCd-IoDOEhAAFgBcgRITldXCicKJQjQjgESAzQ1NBjUZCCDUyj3jIsDMNGNiwM4VEAAWAFyBFROV1cSDAgCEAEYAioCUEcyABgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Fri, Apr 17 - Thu, Apr 23 DMK Bangkok USM Koh Samui $313 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:4/17/2026TANYT&leg2=from:USM,to:DMK,departure:4/23/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:312.90&airProductToken=AQonCiUI0I4BEgM0NTMYg1Mg1GQoociKAzD7yIoDOFRAAFgBcgRUTldXCicKJQjQjgESAzQ1MBjUZCCDUyjbiIsDMLWJiwM4SEAAWAFyBEhOV1cSCggCEAEYAioCUEcYASIECAEQASgCKAMoBDAB) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Fri, May 1 - Wed, May 6 DMK Bangkok USM Koh Samui $318 Roundtrip just found [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:5/1/2026TANYT&leg2=from:USM,to:DMK,departure:5/6/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:317.70&airProductToken=AQomCiQI0I4BEgM0NTUYg1Mg1GQog-iLAzDd6IsDOEtAAFgBcgNLV1cKJwolCNCOARIDNDUwGNRkIINTKPuajAMw1ZuMAzhIQABYAXIESE5XVxIKCAIQARgCKgJQRxgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Wed, Mar 25 - Sat, Mar 28 DMK Bangkok USM Koh Samui $324 Roundtrip found 3 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:3/25/2026TANYT&leg2=from:USM,to:DMK,departure:3/28/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:323.70&airProductToken=AQonCiUI0I4BEgM0NTUYg1Mg1GQoi8iIAzDqyIgDOEhAAFgBcgRITldXCiYKJAjQjgESAzQ1MBjUZCCDUyiR5IgDMPDkiAM4TUAAWAFyA01XVxIKCAIQARgCKgJQRxgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Fri, Apr 17 - Thu, Apr 23 DMK Bangkok USM Koh Samui $325 Roundtrip found 2 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:4/17/2026TANYT&leg2=from:USM,to:DMK,departure:4/23/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:324.90&airProductToken=AQonCiUI0I4BEgM0NTMYg1Mg1GQoociKAzD7yIoDOFRAAFgBcgRUTldXCicKJQjQjgESAzQ1MhjUZCCDUyjfiosDMLmLiwM4VEAAWAFyBFROV1cSCggCEAEYAioCUEcYASIECAEQASgCKAMoBDAB) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Tue, Mar 24 - Sun, Mar 29 DMK Bangkok USM Koh Samui $327 Roundtrip found 2 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:3/24/2026TANYT&leg2=from:USM,to:DMK,departure:3/29/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:326.90&airProductToken=AQonCiUI0I4BEgM0NTUYg1Mg1GQo67yIAzDKvYgDOEhAAFgBcgRITldXCiYKJAjQjgESAzQ1NBjUZCCDUyjX84gDMLH0iAM4TUAAWAFyA01XVxIKCAIQARgCKgJQRxgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Wed, Mar 11 - Tue, Mar 17 DMK Bangkok USM Koh Samui $328 Roundtrip found 1 day ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:3/11/2026TANYT&leg2=from:USM,to:DMK,departure:3/17/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:327.90&airProductToken=AQomCiQI0I4BEgM0NTEYg1Mg1GQo7qWHAzDNpocDOE1AAFgBcgNNV1cKJwolCNCOARIDNDUwGNRkIINTKLHohwMwkOmHAzhIQABYAXIESE5XVxIKCAIQARgCKgJQRxgBIgQIARABKAIoAygEMAE) ![Bangkok Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/PG.gif) Fri, Mar 27 - Mon, Mar 30 DMK Bangkok USM Koh Samui $329 Roundtrip found 1 hour ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:DMK,to:USM,departure:3/27/2026TANYT&leg2=from:USM,to:DMK,departure:3/30/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:328.70&airProductToken=AQomCiQI0I4BEgM0NTUYg1Mg1GQoy96IAzCq34gDOEtAAFgBcgNLV1cKJwolCNCOARIDNDUwGNRkIINTKNv6iAMwtfuIAzhUQABYAXIEVE5XVxIKCAIQARgCKgJQRxgBIgQIARABKAIoAygEMAE) ![](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.com/deals?rfrr=FTG_SPRING_PROMO_) ## Alternative airports near Koh Samui Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.com/Flights-Search?leg1=from:DMK,to:USM,departure:3/19/2026TANYT&leg2=from:USM,to:DMK,departure:3/24/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) USM Samui Intl. Airport CheapestClosest 31 min [Flights from $332 ](https://www.expedia.com/Flights-Search?leg1=from:DMK,to:USM,departure:3/19/2026TANYT&leg2=from:USM,to:DMK,departure:3/24/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) ## Find the cheapest month to fly from Bangkok (DMK) to Koh Samui (USM) ### May is typically the cheapest month to fly From $185 - $291 per traveler. ## Frequently asked questions ### How much does a flight from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM) cost? ### What is the cheapest month to fly from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### Which airlines fly direct from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### What is the cheapest airline that flies from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### How many flights per day from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### What are the most popular departure times for flights from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### What day of the week has the most flights from DMK to USM? ### What is the earliest flight from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### How long does it take to fly from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### What airline has the least delays from DMK to USM? ### What is the best time to fly from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ### What airports do you fly into for Koh Samui from Don Mueang Intl. Airport (DMK)? ### Is it cheaper to buy a plane ticket from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM) last-minute? ### Is it cheaper to book a DMK to USM flight and hotel package? ### Can I cancel or change the date of my flight from Don Mueang Intl. Airport (DMK) to Ko Samui Airport (USM)? ## Travel information | Origin airport | Don Mueang Intl. | | ------------------- | ------------------- | | Destination airport | Samui Intl. Airport | | Airlines serving | Bangkok Airways | | Roundtrip price | $299 | | Distance | 304 mi | | Average flight time | 1 hour 35 mins | ## Book with confidence # Bangkok to Samui Intl. Airport Flights The cheapest times to fly from Bangkok to Samui Intl. Airport On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Bangkok to Samui Intl. Airport are during the month of May. You can find some of the cheapest flights from Bangkok to Samui Intl. Airport with Expedia's search tool and vast selection of airlines. The best time to book a flight from Bangkok to Samui Intl. Airport Sunday is one of the best days to book for cheap flights from Bangkok to Samui Intl. Airport: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance. How to find cheap round-trip tickets from Bangkok to Samui Intl. Airport Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Bangkok to Samui Intl. Airport in 2026\. You can also book with separate airlines for your outbound and return journeys, from $147 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference\*. This is available for a small fee, and is free to One Key Gold and Platinum tier members. Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Bangkok to Samui Intl. Airport flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps. You could also save big by booking one of Expedia's [vacation packages](https://www.expedia.com/package-deals). Bundling together your Bangkok to Samui Intl. Airport airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures. \*Terms apply. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. \*Flight schedules are subject to change. \*Available to One Key members.