An empty corridor at John F. Kennedy International Airport in New York last month. Social distancing to slow the spread of the coronavirus leaves little demand for flights.

An empty corridor at John F. Kennedy International Airport in New York last month. Social distancing to slow the spread of the coronavirus leaves little demand for flights.

An empty corridor at John F. Kennedy International Airport in New York last month. Social distancing to slow the spread of the coronavirus leaves little demand for flights.

An empty corridor at John F. Kennedy International Airport in New York last month. Social distancing to slow the spread of the coronavirus leaves little demand for flights.