Cheap Flights to Koh Samui Islands

View ₩151,600 flight on Wed, Sep 17, 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 ₩151,600 for one-way flights and ₩310,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Tue, Sep 9 - Fri, Sep 12
HKT
Phuket
USM
Koh Samui
₩310,300 Roundtrip, found 13 hours ago
₩310,300
Roundtrip
found 13 hours ago
Select Bangkok Airways flight, departing Tue, Sep 9 from Phuket to Koh Samui, returning Fri, Sep 12, priced at ₩310,300 found 13 hours ago
Scoot
Tue, Oct 7 - Tue, Oct 14
SIN
Singapore
USM
Koh Samui
₩354,913 Roundtrip, found 2 days ago
₩354,913
Roundtrip
found 2 days ago
Select Scoot flight, departing Tue, Oct 7 from Singapore to Koh Samui, returning Tue, Oct 14, priced at ₩354,913 found 2 days ago
Singapore Airlines
Fri, Nov 7 - Tue, Nov 11
ICN
Seoul
USM
Koh Samui
₩503,700 Roundtrip, found 4 days ago
₩503,700
Roundtrip
found 4 days ago
Select Singapore Airlines flight, departing Fri, Nov 7 from Seoul to Koh Samui, returning Tue, Nov 11, priced at ₩503,700 found 4 days ago
Vietnam Airlines
Fri, Sep 12 - Sun, Sep 14
SGN
Ho Chi Minh City
USM
Koh Samui
₩659,700 Roundtrip, found 5 days ago
₩659,700
Roundtrip
found 5 days ago
Select Vietnam Airlines flight, departing Fri, Sep 12 from Ho Chi Minh City to Koh Samui, returning Sun, Sep 14, priced at ₩659,700 found 5 days ago
Thai Airways International
Sun, Jan 25 - Sat, Jan 31
KUL
Kuala Lumpur
USM
Koh Samui
₩665,277 Roundtrip, found 6 days ago
₩665,277
Roundtrip
found 6 days ago
Select Thai Airways International flight, departing Sun, Jan 25 from Kuala Lumpur to Koh Samui, returning Sat, Jan 31, priced at ₩665,277 found 6 days 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, ₩310,300 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 ₩310,300 and ₩665,277. Many lucky travelers locked in one-way flights from Phuket (HKT) for as low as ₩151,600.
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 ₩310,300 and ₩665,277. 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
₩310,300

Trending flights to Koh Samui Islands

Prices were available within the past 7 days and start at ₩151,600 for one-way flights and ₩310,300 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scoot
Mon, Sep 22 - Fri, Sep 26
ICN
Seoul
USM
Koh Samui
₩482,519 Roundtrip, found 11 hours ago
₩482,519
Roundtrip
found 11 hours ago
Select Scoot flight, departing Mon, Sep 22 from Seoul to Koh Samui, returning Fri, Sep 26, priced at ₩482,519 found 11 hours ago
*Available to Expedia members.