Why do people buy snacks before flights even when they are not hungry?
Preparation often disguises itself as appetite.
Many travelers buy snacks before flights because food provides comfort and preparedness. The purchase reduces uncertainty, even if the snacks are never eaten.
The traveler just finished lunch. The flight is only two hours. Still, chips and chocolate suddenly seem necessary. The hidden mechanism is uncertainty insurance. Humans prepare for situations they cannot fully control. Will the flight be delayed? Will the food be expensive? Will hunger arrive unexpectedly? The snack becomes a small guarantee. Its practical value may be limited. Its psychological value can be enormous. Behavioral economists often observe that people buy security in surprisingly small forms. A bottle of water. A backup charger. A bag of cookies. People think they are buying food. Very often, they are buying freedom from a problem that may never exist.
