<h1>Airlines Face Massive Financial Strain from Pakistan Airspace Closure, Seeking Alternative Routes and Cost Mitigation Strategies</h1> Indian airlines have submitted detailed inputs to the civil aviation ministry regarding the impact of Pakistan airspace closure. The closure will significantly increase operational expenses, with Air India estimating additional costs around USD 600 million annually. Airlines are exploring alternative routes to mitigate financial challenges. The ministry is assessing potential solutions, including passenger fare implications and operational cost increases estimated at over Rs 306 crore monthly. The airspace restrictions followed a recent terror incident.