As of December 5, more than 2,100 IndiGo flights have been cancelled across Indian airports, leaving passengers stranded and airports in complete disarray. Videos of understandably frustrated people screaming at hapless airline desk employees have been circulating. Along with cancellations, IndiGo’s operational troubles have spread to its on-time performance (OTP), which plummeted to 8.5 per cent on Thursday, down from 19.7 per cent and 35 per cent in the previous two days. OTP is a key measure of flight punctuality, and IndiGo’s figure is usually in the high 80 per cent range, which is a matter of pride for the aviation giant. The net loss to consumers due to the flight disruptions will be significant. Surge pricing costs: 1,000 flights were cancelled just on Friday. Assuming each flight carries around 160 passengers on average, this results in 1,60,000 passengers stranded. Some would have abandoned their trip, while others would have rebooked their flight at a premium, increasing their outflow. Many would have cancelled their trips, which would crystallise all the sunk costs – further travel …