Since the September 11, 2001, terrorist attacks, repeated airport closures due to security breaches have imposed substantial costs on travelers, airlines, and government agencies in terms of flight delays and cancellations. Using data from the year following September 11, this study examines how...

Prices for the same flight change substantially depending on the time of purchase. This paper uses a unique dataset with round-the-clock posted fares to document significant within-day price variation. Labeling time-variation as discriminatory is difficult because the cost of an unsold airline...

The U.S. Department of Transportation (DOT) defines a flight as ‘‘delayed’’ if it arrives 15+ minutes late. The DOT ‘‘flight counting’’ delay definition is used to rank airline/airport service quality. An obvious caveat of counting flight delays is that the duration of delay...