642€ - 1,064€
Most travellers find the cheapest return airfare to Ko Samui when booking during the month of May.
In general, most flyers find the cheapest time to book a flight to Ko Samui is about 51 days prior.
On average, the cheapest flights to Ko Samui are found when departing on a Thursday. Try to avoid departing on a Saturday, as this is usually the most expensive day.
Our data shows that the cheapest Ko Samui flights are usually those with afternoon departure times. evening flights are often costlier.