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 329371 datapoints.)
Mon
MondayUS $ 92
Tue
TuesdayUS $ 249
Wed
WednesdayUS $ 128
Thu
ThursdayUS $ 125
Fri
FridayUS $ 112
Sat
SaturdayUS $ 112
Sun
SundayUS $ 128
Analyse direct flights between Hong Kong and Hanoi.
