My wife and 5-month-old baby are travelling to Delhi airport (DEL) on a domestic flight, with a connection to an international flight. The inbound domestic flight arrives at Terminal 3 at 11:50 PM, while the onward international flight leaves at 11:30 AM the following day.
The domestic and international flights are booked on separate tickets. However, our domestic airline (Air India) has a partnership with the international airline and can check the bags through to the final destination. Can we enter the international departure concourse with this much time difference to travel? I was thinking of booking a room in the internal airport hotel for about 9 hours as my wife doesn't want to leave the airport and go into New Delhi, but the airport hotel is on the secure side of the terminal.