The best day to arrive at Chennai is Wednesday and it would be best to avoid Friday, as prices are on average 101.46% higher than on Wednesday. (Average prices, based on 419074 datapoints.)
MondayNZD 92
Mon
TuesdayNZD 111
Tue
WednesdayNZD 70
Wed
ThursdayNZD 125
Thu
FridayNZD 142
Fri
SaturdayNZD 97
Sat
SundayNZD 104
Sun
Analyse direct flights between Chennai and Mumbai.