India, Aug. 15 -- More than 350 flights were delayed at Delhi's Indira Gandhi International (IGI) Airport on Thursday after heavy morning rainfall triggered massive traffic jams across the National Capital Region, preventing both passengers and flight crew from reaching the airport. Even hours after the rain had stopped, gridlock on key roads left many unable to reach the airport in time, with several missing their flights altogether.

Delhi airport authorities issued advisories urging travellers to opt for the Metro instead of road transport. The Metro's Magenta Line is connected to the airport Terminal 1 and the Airport Express Line (Orange) connects to Terminal 3.

"Heavy rainfall and waterlogging across the Delhi-National Capital Regi...