The best day to arrive at Hong Kong is Monday and it would be best to avoid Tuesday, as prices are on average 171.73% higher than on Monday. (Average prices, based on 329004 datapoints.)
Mon
MondaySGD 115
Tue
TuesdaySGD 314
Wed
WednesdaySGD 161
Thu
ThursdaySGD 158
Fri
FridaySGD 141
Sat
SaturdaySGD 141
Sun
SundaySGD 161
Analyse direct flights between Hong Kong and Hanoi.