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 12927 datapoints.)
MondayAUD 151
Mon
TuesdayAUD 171
Tue
WednesdayAUD 171
Wed
ThursdayAUD 165
Thu
FridayAUD 163
Fri
SaturdayAUD 167
Sat
SundayAUD 202
Sun
Analyse direct flights between Koh Samui and Phuket.