 How do they calculate what they owe you based on whether or not you completed one leg of your flight or you completed no legs of your flight? Here's the bad news, and you need to be aware of it. In many cases, the airline will apply the cost of a full fare refundable coach ticket or business class ticket or first class ticket and then pay you the difference in fare, which may not be much at all. So you get back a fraction of what you think you deserve. And by the way, you deserve better.