Airplane passengers use the term “layover” more frequently than they do “stopover.” A layover is defined as an airplane change that results in a stay at the airport of up to 4 hours in the United States or Canada. Internationally, a layover could last as long as 24 hours.
What is a stopover? A stopover is simply a layover that lasts longer than the thresholds above. From the airline’s perspective, a normal route usually cannot have any free stopovers.
We want to minimize layovers because they are undesirable delays. We want to maximize stopovers because they are intended destinations at minimal incremental cost.
We are defining these terms now because we shall take advantage of free stopovers.