The best day to arrive at Koh Samui is Wednesday and it would be best to avoid Monday, as prices are on average 320.91% higher than on Wednesday. (Average prices, based on 2161027 datapoints.)
MondayUS $ 547
Mon
TuesdayUS $ 139
Tue
WednesdayUS $ 130
Wed
ThursdayUS $ 133
Thu
FridayUS $ 231
Fri
SaturdayUS $ 269
Sat
SundayUS $ 165
Sun
Analyse direct flights between Koh Samui and Singapore.