capetonianm August 31, 18:05
This old chestnut has indeed been around for many years, but it has become easier for airlines to track and prevent revenue leakage through means that they would regard as “devious”. Many fare rules have a paragraph such as: “full and consecutive use must be made of all flight coupons”. This is a bilateral contract and gives them the theoretical right to recover, as illogical and unfair as it might seem, the fare difference when someone fails to fly the last segment since as we know this can produce a higher fare. It is certainly not a “myth” that the airlines can, and will, take action to avoid revenue losses.