From Chittagong bus to Comilla. 4 h. From Chittagong taxi to Comilla. 2 h 13 min ₹3,389. From Chittagong drive to Comilla. 2 h 13 min. From Chittagong taxi to Chittagong airport, fly to Dhaka airport, then taxi to Comilla. 2 h 19 min ₹9,689.
Yes, there is a direct bus departing from Chittagong and arriving at Comilla. Services depart once daily, and operate every day. The journey takes approximately 4 hours.