The best day to arrive at Hanoi is Sunday and it would be best to avoid Monday, as prices are on average 805.66% higher than on Sunday. (Average prices, based on 212623 datapoints.)
MondayUS $ 347
Mon
TuesdayUS $ 161
Tue
WednesdayUS $ 284
Wed
ThursdayUS $ 290
Thu
FridayUS $ 101
Fri
SaturdayUS $ 46
Sat
SundayUS $ 38
Sun
Analyse direct flights between Hanoi and Singapore.