Pakistan has announced temporary air route closures; flights are expected to be delayed.

Due to ongoing regional security concerns, the Pakistan Airport Authority has ordered temporary aviation route closures within the Flight Information Regions (FIRs) of Karachi and Lahore. On January 14 and 15, the limitations will be put into effect at separate times.
The Pakistan Air Force is conducting military drills in the designated locations and has been put on high alert, according to officials. Therefore, throughout the restricted period, flight operations in both FIRs will be strictly monitored.
Commercial pilots have been advised to use alternate routes to ensure the safety of flight operations. The military exercises are scheduled to take place daily between 7:00 pm and 10:00 pm.