Cheap Flights to Koh Samui Islands

View ₩157,200 flight on Wed, Nov 12, 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 ₩157,200 for one-way flights and ₩320,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Fri, Nov 14 - Tue, Nov 18
HKT
Phuket
USM
Koh Samui
₩320,100 Roundtrip, found 4 days ago
₩320,100
Roundtrip
found 4 days ago
Select Bangkok Airways flight, departing Fri, Nov 14 from Phuket to Koh Samui, returning Tue, Nov 18, priced at ₩320,100 found 4 days ago
Singapore Airlines
Wed, Nov 26 - Thu, Dec 4
ICN
Seoul
USM
Koh Samui
₩547,100 Roundtrip, found 6 days ago
₩547,100
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Wed, Nov 26 from Seoul to Koh Samui, returning Thu, Dec 4, priced at ₩547,100 found 6 days ago
Scoot
Sat, Feb 28 - Fri, Mar 6
ICN
Seoul
USM
Koh Samui
₩567,936 Roundtrip, found 5 days ago
₩567,936
Roundtrip
found 5 days ago
Select Scoot flight, departing Sat, Feb 28 from Seoul to Koh Samui, returning Fri, Mar 6, priced at ₩567,936 found 5 days ago
Jeju Air
Fri, Nov 7 - Fri, Nov 14
PUS
Busan
USM
Koh Samui
₩653,700 Roundtrip, found 6 hours ago
₩653,700
Roundtrip
found 6 hours ago
Select Jeju Air flight, departing Fri, Nov 7 from Busan to Koh Samui, returning Fri, Nov 14, priced at ₩653,700 found 6 hours ago
Thai Airways International
Tue, Nov 11 - Tue, Nov 25
ICN
Seoul
USM
Koh Samui
₩830,100 Roundtrip, found 2 days ago
₩830,100
Roundtrip
found 2 days ago
Select Thai Airways International flight, departing Tue, Nov 11 from Seoul to Koh Samui, returning Tue, Nov 25, priced at ₩830,100 found 2 days ago

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, ₩320,100 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 ₩320,100 and ₩830,100. Many lucky travelers locked in one-way flights from Phuket (HKT) for as low as ₩157,200.
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 ₩320,100 and ₩830,100. 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.

Book with confidence

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.

Travel information

Destination airport
Samui Intl. Airport
Destination airport IATA code
USM
Destination city name
Samui Intl. Airport
Roundtrip price
₩320,100

Trending flights to Koh Samui Islands

Prices were available within the past 7 days and start at ₩157,200 for one-way flights and ₩320,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Wed, Nov 26 - Thu, Dec 4
ICN
Seoul
USM
Koh Samui
₩547,100 Roundtrip, found 6 days ago
₩547,100
Roundtrip
found 6 days ago
Select Singapore Airlines flight, departing Wed, Nov 26 from Seoul to Koh Samui, returning Thu, Dec 4, priced at ₩547,100 found 6 days ago

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