That means buying cheaper tickets with a layover in their actual destination city instead of a direct flight. This only works because air fares violate the "triangle inequality," one of the basic laws of geometry. One of the most basic laws of geometry is something called the "triangle inequality." But that clearly is not always the case, and that violation of the triangle inequality is what makes skiplagging possible. If airlines want to fight skiplagging, a good first start would be making airfares into a geometrically-accurate metric.

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Persons: skiplagging, Brian Hayes Organizations: Flyers Locations: layover, New York, Amsterdam, London