The country's flagship carrier Indian has "temporarily" withdrawn from May 1 to May 31 some city-bound flights due to operational reasons.
An IA release said the evening flights 802/801 on Chennai-Delhi-Chennai sectors have been withdrawn.
In the Chennai-Mumbai-Chennai sector, the evening flights IC 571/572 have been withdrawn.
Similarly, flight IC 970 flying Mumbai-Chennai will not operate till May 31, it said.
However, flight IC 969 on the Chennai-Mumbai sector will operate in its existing timings leaving Chennai at 9.15 am.
Flight IC 672 will operate between Madurai and Chennai, leaving Madurai at 1.20 pm and arriving in Chennai at 2.15 pm.
Flight IC 671 on the Mumbai-Chennai-Madurai sector will operate as per scheduled timings, it said.
The Chennai-Hyderabad-Chennai sector IC 947 operating on Fridays, will leave Chennai at 2.15 PM instead of 2.40 pm. In the return direction, IC 948 will leave Hyderabad at 5.00 pm.
However, on all other days, flight IC 947/948 will operate according to existing timings, it added.