$109 Cheap Flights to Koh Samui Islands

View $109 flight on Thu, Jun 26, 2025Opens in a new window

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How much is the cheapest flight to Koh Samui Islands?

Prices were available within the past 7 days and start at $109 for one-way flights and $224 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Sun, Apr 26 - Tue, May 12
HKT
Phuket
USM
Koh Samui
$224 Roundtrip, found 1 hour ago
$224
Roundtrip
found 1 hour ago
Select Bangkok Airways flight, departing Sun, Apr 26 from Phuket to Koh Samui, returning Tue, May 12, priced at $224 found 1 hour ago
Scoot
Tue, Sep 16 - Tue, Sep 30
SIN
Singapore
USM
Koh Samui
$258 Roundtrip, found 3 days ago
$258
Roundtrip
found 3 days ago
Select Scoot flight, departing Tue, Sep 16 from Singapore to Koh Samui, returning Tue, Sep 30, priced at $258 found 3 days ago
Emirates
Mon, Nov 24 - Thu, Nov 27
HKG
Hong Kong SAR
USM
Koh Samui
$383 Roundtrip, found 3 days ago
$383
Roundtrip
found 3 days ago
Select Emirates flight, departing Mon, Nov 24 from Hong Kong SAR to Koh Samui, returning Thu, Nov 27, priced at $383 found 3 days ago
Singapore Airlines
Thu, Nov 27 - Sun, Nov 30
HKG
Hong Kong SAR
USM
Koh Samui
$399 Roundtrip, found 1 day ago
$399
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Thu, Nov 27 from Hong Kong SAR to Koh Samui, returning Sun, Nov 30, priced at $399 found 1 day ago
Thai Airways International
Thu, Sep 18 - Sat, Sep 20
HKG
Hong Kong SAR
USM
Koh Samui
$490 Roundtrip, found 1 day ago
$490
Roundtrip
found 1 day ago
Select Thai Airways International flight, departing Thu, Sep 18 from Hong Kong SAR to Koh Samui, returning Sat, Sep 20, priced at $490 found 1 day ago

Alternative airports

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Samui Intl. Airport USM. Cheapest option available. Flights from $1,561
USM
Samui Intl. Airport
Cheapest
Flights from $1,561

Koh Samui Islands Flights

Are you planning the vacation of a lifetime to Koh Samui? If so, Expedia wants to show you deals of a lifetime on flights to Koh Samui. We make planning an exotic and luxurious vacation easy, as you never have to worry about the hassle of searching all over the Internet to find the lowest prices on airplane seats again. We put all the information you need to book your reservation in one place. We even make it possible to drastically cut the cost of your vacation by taking advantage of our exclusive discount specials on travel packages. A world of wild coconut trees and coral reefs is waiting for you in this beautiful destination, and Expedia can save you more than the cost of a few coconuts when you buy your tickets to Koh Samui using our great offers. Get ready to embrace an island of white sand and beauty.

Cheap Koh Samui airfare is available on Expedia. All you have to do to find cheap flights to Koh Samui is to search for a departure destination and a time suiting your schedule. You even have the freedom to browse for flights based on your preferred airline carrier. We work with all the major airlines to bring you exclusive deals on Koh Samui flights.

You never travel alone when you plan your trip with Expedia. Help is available every step of the way while booking your plane seat. Our friendly travel experts are always standing by to answer any questions you have regarding the best choices for accommodations. We can also provide you with information regarding how to combine your reservations to get the lowest prices on your airplane seat, hotel, and other travel needs. Let us help you cut the expense of your trip without cutting the fun. We help people from every corner of the world plan lovely vacations to Koh Samui, so book tour tickets to Koh Samui today.

Frequently asked questions

What month is the cheapest to fly to Koh Samui Islands?
The best months to find cheap flights to Koh Samui Islands are typically during the off-peak season, when demand is lower. To save money, avoid flying during public holidays and school breaks.
Which US cities fly direct to Koh Samui Islands?
Nonstop flights make travel a little easier. When you search on Expedia, check "Direct flights only" to see the available options to fly to Koh Samui Islands.
How to find a cheap flight to Koh Samui Islands?
Book in advance for the best chance of scoring cheap flights to Koh Samui Islands. Also, consider traveling during off-peak months like May and September. If you jet off on a Thursday, you'll save an average of 16% compared to departing on a Sunday.* Save time checking every day and track your flight prices using the Expedia app. We'll let you know when fares change.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Koh Samui Islands?
While booking in advance is generally the easiest way to save cash, don't worry if your Koh Samui Islands getaway is last minute. You can still get cheap flights to Koh Samui Islands, especially if your plans have a little wiggle room. Try changing your travel dates, looking at different ticket types or jetting out of another hub.
How far in advance should I book a flight to Koh Samui Islands?
Book your flight to Koh Samui Islands two to four months ahead if you're jetting in from an international destination. For domestic travel, the general guideline is 28 days in advance. Cheaper fares and a wider variety of travel dates, schedules and seating options are just some of the perks of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Koh Samui Islands?
You'll save an average of 8% by buying tickets on a Sunday instead of Fridays, which tend to be the priciest day to book.* When it comes to scoring a cheap flight to Koh Samui Islands, timing makes a difference.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Can I save money by booking a Koh Samui Islands trip package?
You could possibly save hundreds of dollars if you secure a Koh Samui Islands flight and hotel package deal on Expedia. And you'll save time and hassle by having all your travel arrangements in one place. Try bundling your hotel and flight with add-ons like activities and car rentals for your own personalized Koh Samui Islands escape.
Can I change or cancel my flight to Koh Samui Islands?
If you bought your flight to Koh Samui Islands in the last 24 hours, you can often cancel or change it for free. After that, additional charges may apply depending on the airline's terms of service. To learn more, visit our Customer Service Portal. Remember that some flights are non-refundable, so you may be offered a credit for future flights rather than a direct refund. When searching on Expedia, use the "Changes included" or "No cancel fee" boxes to find fares with flexible change policies.
Flights to Koh Samui Islands information
Destination airport
Samui Intl. Airport
Destination airport IATA code
USM
Destination city name
Samui Intl. Airport
Roundtrip price
$223

Trending flights to Koh Samui Islands

Prices were available within the past 7 days and start at $109 for one-way flights and $224 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Wed, Nov 19 - Wed, Nov 26
LAX
Los Angeles
USM
Koh Samui
$794 Roundtrip, found 1 day ago
$794
Roundtrip
found 1 day ago
Select Singapore Airlines flight, departing Wed, Nov 19 from Los Angeles to Koh Samui, returning Wed, Nov 26, priced at $794 found 1 day ago

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