Cheap flights to Koh Samui

Based on live prices, October 2026 is currently the cheapest month on average for Koh Samui, at around $554. Prices update hourly and can change, so check again if your dates are flexible.

No non-stop fare to Koh Samui is showing right now; the available routes usually go via one stop.

In the price calendar, November 2 is the cheapest day to fly to Koh Samui right now, at around $305.

Limited-time prices come from live airline data and are shown for a set window before the page moves on to another destination. There is no artificial rush here: when the countdown ends, that deal simply disappears and a new one takes its place.

The headline price is the cheapest one-way fare we found to Koh Samui over roughly the next two months, updated hourly from live data. Always confirm the final price and the baggage rules on the airline booking page before you pay.