there will be fewer face to face business meetings, probably fewer conferences that require overnight stays and cities like London could especially hard hit, as will the airlines, like BA Cityflyer.
Not disputing the points raised
ATNotts but I recall similar comments being made post 9/11 and post 2008 financial crash. Whilst there will be a realignment for a period I do believe Humans insatiable appetite for success will demand that normality return at some point, and that will include the ubiquitous night-stops and expense account trips. Whether the current incumbent airlines exist to service that need is another question.