At the time of rising crude oil prices and high inflation, the airline industry is trying to make up its margins in every possible way. Some of the airline companies have hiked prices and now they are also trying to cut costs with e-ticketing. So, how much are they saving with electronic tickets? The International Air Transport Association (IATA) directive asking all airlines to switch to 100 per cent e-ticketing by the June 1 has come at a great time.