The best day to arrive at Koh Samui is Monday and it would be best to avoid Sunday, as prices are on average 33.13% higher than on Monday. (Average prices, based on 12995 datapoints.)
MondayTHB 3.662
Mon
TuesdayTHB 4.135
Tue
WednesdayTHB 4.127
Wed
ThursdayTHB 3.987
Thu
FridayTHB 3.935
Fri
SaturdayTHB 4.035
Sat
SundayTHB 4.876
Sun
Analyse direct flights between Koh Samui and Phuket.