New Delhi, April 24 -- International flights by Air India, IndiGo, Spicejet and Akasa Air from India are likely to see an extra hour of flying time as Pakistan announced the immediate closure of its airspace to all Indian-owned and Indian-operated airlines on Thursday.

Pakistan issued a notice to airmen (NOTAM) that read, "Pakistan airspace not available for indian registered aircraft and aircraft operated, owned and leased by Indian airlines." The notice also covers military flights.

Flights of Indian airlines to or from North America, UK, Europe, and Middle East will be affected by this, but international airlines' flights to or from India won't be affected.

A senior industry official told Mint, "Flights will likely take a detour ove...