Cheap flights to Koh Samui
7 cities have regular scheduled flights to Koh Samui (USM). 29 airlines fly to the city, from major international carriers to budget low-cost options. Most flights depart from Bangkok, Phuket, Singapore, Krabi, Hong Kong. Compare fares, choose the best option and book your tickets online at the best price. Enter your departure city above to find flights and check prices.
Phuket — Koh Samui
Krabi — Koh Samui
Bangkok — Koh Samui
Pattaya — Koh Samui
Singapore — Koh Samui
Chiang Mai — Bangkok
Hong Kong — Phuket
Dubai — Koh Samui
Colombo — Koh Samui
Frankfurt am Main — Koh Samui
Popular departure cities to Koh Samui
Flight insights to Koh Samui
Data-driven trends for direct flights to Koh Samui — how often airlines fly, where passengers come from, and typical fares and flight times.
Most frequent departure cities
The most frequent direct routes to Koh Samui come from Bangkok, Phuket and Singapore. Bangkok leads with around 637 flights a week.
Top departure countries
Most direct flights to Koh Samui depart from Thailand, Singapore and Hong Kong. Thailand alone accounts for about 85% of all direct routes.
- Thailandavg $117
- Singaporeavg $149
- Hong Kongavg $195
Direct routes & fares
Popular non-stop routes to Koh Samui range from Bangkok at $102 to Hong Kong at $195 — a quick way to compare direct-flight fares.
Cheapest departure cities
The cheapest places to fly to Koh Samui from right now are Bangkok from $102, Krabi from $104 and Phuket from $106.
- Bangkokfrom $102
- Krabifrom $104
- Phuketfrom $106
- Pattayafrom $127
- Chiang Maifrom $145
Longest direct flights
The longest direct flight to Koh Samui is from Hong Kong at about 3h 9m, followed by Chiang Mai (1h 49m) and Singapore (1h 47m).
- Hong Kong3h 9m
- Chiang Mai1h 49m
- Singapore1h 47m
- Bangkok1h 6m
- Pattaya1h
Frequently asked questions
- Which cities have flights to Koh Samui?
- There are 7+ cities with regular flights to Koh Samui, from major international hubs to nearby regional airports. Pick your departure city to compare fares and book.
- Where do most flights to Koh Samui depart from?
- Most travelers fly to Koh Samui from Bangkok, Phuket, Singapore, Krabi, Hong Kong. These routes have the highest flight frequency and passenger traffic, so fares are usually competitive.
- How many airlines fly to Koh Samui?
- 29 airlines operate flights to Koh Samui, ranging from major international carriers to budget low-cost airlines. Competition helps keep fares affordable.
- When is the best time to book flights to Koh Samui?
- For short-haul routes, booking 4–8 weeks ahead usually gives the best prices. For long-haul flights, aim for 2–3 months ahead. Prices also drop in off-peak seasons and for midweek departures.
- How to find cheap flights to Koh Samui?
- Compare offers from multiple airlines, use flexible dates and set up price alerts. Our platform lets you track price trends and choose the best time to buy your tickets.