Mumbai-Delhi India’s busiest domestic route, globally ranks 9th with 623,933 seats August 17, 2023 According to recent analysis by OAG Aviation, Mumbai to Delhi is India’s busiest domestic route. The route secures 9th place internationally, with 623,933 seats. It also displaces Jakarta – Denpasar route, which drops out of Top 10 this month. Busiest domestic route Mumbai to Delhi route OAG Aviation 2023-08-17 old_employeeeesss