How Low Cost Airlines Keep Costs Low• A plane ticket that costs less than half the regular fare.• A plane ticket that costs less than a train ticket for the same airline destination. • A plane ticket that costs Re 1. Even two years ago, if someone had offered you these prices, chances are you would have asked them what banned substance they were taking. Today they all exist. You can fly SpiceJet from Delhi to Mumbai for Rs 99 or Air Deccan from Delhi to Bangalore for Re 1.