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 12993 datapoints.)
MondayNZD 162
Mon
TuesdayNZD 183
Tue
WednesdayNZD 183
Wed
ThursdayNZD 177
Thu
FridayNZD 174
Fri
SaturdayNZD 179
Sat
SundayNZD 216
Sun
Analyse direct flights between Koh Samui and Phuket.
NZD
