Cheap Flights to Koh Samui Islands

View ₩156,200 flight on Tue, Nov 11, 2025Opens in a new window

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  • Bangkok Airways

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  • Singapore Airlines

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    Lufthansa

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    Etihad Airways

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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 ₩156,200 for one-way flights and ₩384,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Mon, Sep 29 - Mon, Oct 6
HKT
Phuket
USM
Koh Samui
₩384,400 Roundtrip, found 12 hours ago
₩384,400
Roundtrip
found 12 hours ago
Select Bangkok Airways flight, departing Mon, Sep 29 from Phuket to Koh Samui, returning Mon, Oct 6, priced at ₩384,400 found 12 hours ago
Scoot
Fri, Nov 14 - Tue, Nov 18
KUL
Kuala Lumpur
USM
Koh Samui
₩420,402 Roundtrip, found 20 hours ago
₩420,402
Roundtrip
found 20 hours ago
Select Scoot flight, departing Fri, Nov 14 from Kuala Lumpur to Koh Samui, returning Tue, Nov 18, priced at ₩420,402 found 20 hours ago
Singapore Airlines
Tue, Apr 21 - Fri, May 1
ICN
Seoul
USM
Koh Samui
₩511,300 Roundtrip, found 6 days ago
₩511,300
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Tue, Apr 21 from Seoul to Koh Samui, returning Fri, May 1, priced at ₩511,300 found 6 days ago
Thai Airways International
Tue, Jan 13 - Thu, Jan 22
ICN
Seoul
USM
Koh Samui
₩867,300 Roundtrip, found 4 days ago
₩867,300
Roundtrip
found 4 days ago
Select Thai Airways International flight, departing Tue, Jan 13 from Seoul to Koh Samui, returning Thu, Jan 22, priced at ₩867,300 found 4 days ago
Vietnam Airlines
Sun, Mar 22 - Thu, Mar 26
ICN
Seoul
USM
Koh Samui
₩954,900 Roundtrip, found 2 hours ago
₩954,900
Roundtrip
found 2 hours ago
Select Vietnam Airlines flight, departing Sun, Mar 22 from Seoul to Koh Samui, returning Thu, Mar 26, priced at ₩954,900 found 2 hours ago

Searching for cheap flights to Koh Samui Islands? No travel company presents more choices than Expedia if you're looking to compare flights to Koh Samui Islands. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Surat Thani Province. Expedia provides the cheapest flights to many destinations in Surat Thani Province and you may find even greater savings if you combine your flight with a hotel stay in Koh Samui Islands.

Frequently asked questions

How do I find cheap flights to Koh Samui Islands that have flexible change policies?
By using our clever "No change fee" filter, that's how. Simply type in your preferred dates and destination, click the "Search" button, then tick the box directly under the "Flexible change policies" subheading (look to the left of your screen). Expedia makes it easy to find flexible and affordable airfares to Koh Samui Islands.
How can I find cheap tickets to Koh Samui Islands?
To pick up an awesome deal to Koh Samui Islands, book well ahead. Also use Expedia's "flexible dates" link above your search results. This will list prices for the days around your travel dates. In the last seven days, ₩384,400 was the lowest price for a flight to Koh Samui Islands.
How much is a flight to Koh Samui Islands?
There were lots of low-cost fares up for grabs in the last seven days, with the cost of a return flight to Koh Samui Islands varying between ₩384,400 and ₩954,900. Many lucky travelers locked in one-way flights from Phuket (HKT) for as low as ₩156,200.
When is the cheapest time to fly to Koh Samui Islands?
Flying on a Tuesday, followed by a Monday, is usually the best way to bag the cheapest fare. Stay away from the weekends if possible, because Saturday is typically the most expensive day of the week. Spend the money you saved enjoying yourself in Koh Samui Islands instead!
How much is a plane ticket to Koh Samui Islands?
In the last seven days, fares cost between ₩384,400 and ₩954,900. Browse through our sensational deals to Koh Samui Islands, pick your favorite and then get packing!
What months are the cheapest to book a flight to Koh Samui Islands?
To secure a low-cost flight to Koh Samui Islands, book sometime in February when the price of airfares are at their cheapest. The most expensive time to book? In the USA, it's the month of December.
Flights to Koh Samui Islands information
Destination airport
Samui Intl. Airport
Destination airport IATA code
USM
Destination city name
Samui Intl. Airport
Roundtrip price
₩384,400

Trending flights to Koh Samui Islands

Prices were available within the past 7 days and start at ₩156,200 for one-way flights and ₩384,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Wed, Sep 24 - Tue, Sep 30
ICN
Seoul
USM
Koh Samui
₩482,820 Roundtrip, found 2 hours ago
₩482,820
Roundtrip
found 2 hours ago
Select Scoot flight, departing Wed, Sep 24 from Seoul to Koh Samui, returning Tue, Sep 30, priced at ₩482,820 found 2 hours ago
*Available to Expedia members.