Our flight was _ from Lahore to Islamabad airport.

Explanation

To divert something means to change its current path to a different one. In this example the plane lands in a different location compared to its original one due to being diverted.Reflect means for a surface or body to throw back heat, light, or sound without absorbing it.To deflect means for an object to change direction after hitting something. Or for one to cause someone to deviate from an intended purpose.To shift means too change position. The plane can shift from one runway to another but it is more appropriate to say that it diverted its route from one to another.