The best day to arrive at Kolkata is Friday and it would be best to avoid Thursday, as prices are on average 111.44% higher than on Friday. (Average prices, based on 180841 datapoints.)
Monday€ 71
Mon
Tuesday€ 47
Tue
Wednesday€ 71
Wed
Thursday€ 73
Thu
Friday€ 34
Fri
Saturday€ 40
Sat
Sunday€ 47
Sun
Analyse direct flights between Kolkata and Chennai.