DEL stands for New Delhi Indira Gandhi Intl Airport, while FAO stands for Faro Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Mumbai Chhatrapati Shivaji Intl Airport (BOM), Bengaluru Intl Airport (BLR), Hyderabad Rajiv Gandhi Intl Airport (HYD), Chennai Airport (MAA), Ahmedabad Airport (AMD) are some additional IATA codes for airports related to your trip. Find deals