This study provides empirical evidence documenting how COVID-19 affects intertemporal price dispersion in the airline industry. Exploiting a unique panel of 43 million fares collected before and during the pandemic, we find that airlines discounted fares by an average of 57%. The rate of intertemporal price increases also declined, particularly in the last week to departure. We also find that flight-level price dispersion increased during the pandemic. Fare decreases (and the associated increase in price dispersion) are found to be driven primarily by the diffusion of COVID-19 at the destination as opposed to the origin market
