Several airlines including Air India, IndiGo and SpiceJet on Thursday announced disruptions to several of their international routes after Iran abruptly closed its airspace. The shutdown came at a time when protests against Supreme Leader Ayatollah Khamenei have intensified and tensions with the United States continue to escalate. 

In a post on X, Air India warned passengers about delays on flights that normally pass through the region and possible cancellations where rerouting is not feasible. "Due to the emerging situation in Iran, the subsequent closure of its airspace and in view of the safety of our passengers, Air India flights overflying the region are now using an alternative routing, which may lead to delays. Some Air India flights where currently rerouting is not possible are being cancelled," the airline said. The airline urged passengers to verify their flight status before travelling to the airport. "Safety of our passengers and crew remain top priority," it added.

IndiGo also posted an early morning update stating that some of its international services were "impacted" by Iran's "sudden airspace closure." The airline said, "Our teams are working diligently to assess the situation and support affected customers by offering the best possible alternatives." It added that affected travellers could rebook or request refunds.

SpiceJet also issued a similar advisory, attributing disruptions to the airspace closure over Iran. "Due to airspace closure in Iran, some of our flights may be affected. Passengers are advised to check their flight status at http://spicejet.com/#status or contact our 24*7 Reservation Helpline numbers at +91 (0)124 4983410 or +91 (0)124 7101600 for assistance (sic)," the airline wrote on X.