New Delhi, April 25 -- International flights, especially from Delhi and other northern cities, will take a longer time to reach their destinations and fares are also likely to rise in the range of 8-12 per cent in the near term, with Pakistan closing its airspace for Indian airlines.

Air India and IndiGo on Thursday said some of its international flights have been impacted by the Pakistan airspace closure, with the Tata Group-owned airline mentioning that its flights connecting North America, UK, Europe and Middle East are likely to take an alternative extended route.

Apart from IndiGo and Air India, Air India Express, SpiceJet and Akasa Air also have international operations.

All West-bound flights flying from north Indian cities, inclu...