The best day to arrive at Hanoi is Saturday and it would be best to avoid Tuesday, as prices are on average 309.09% higher than on Saturday. (Average prices, based on 606242 datapoints.)
Mon
MondayNZD 252
Tue
TuesdayNZD 703
Wed
WednesdayNZD 213
Thu
ThursdayNZD 180
Fri
FridayNZD 177
Sat
SaturdayNZD 172
Sun
SundayNZD 186
Analyse direct flights between Hanoi and Hong Kong.
