Choose a month below to see average flight price and weather conditions.
$1,081 - $2,141
29 - 33 °C
50 - 423 mm
Flying to Ko Samui in January is usually considered the best time to fly. However, you will find other deals are always available year round. May sees the temperatures in Ko Samui peak to their warmest. November tends, on average, to see the most amount of rainfall.
When is the best time to book flights to Ko Samui?
The price you pay for your flight to Ko Samui may vary depending on when you book. For the best chance of a lower fare, look to book 50 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Days before departure
Which day is cheapest to fly to Ko Samui?
The cheapest day to fly to Ko Samui is usually Wednesday. At the moment, Thursday is the most expensive.
What time of day is cheapest to fly?
Ko Samui flights can be made cheaper if you choose a flight in the morning. Booking a flight at midday will likely mean higher prices.