The Biggest loss of Travel right now is Canada Boycotting U.S. travel and all goods they used to buy from the U.S.

 This is also true worldwide as we (the U.S.) are seen now as a PARIAH country where it is not safe to travel sort of like Americans View Venezuela don't go there because they don't want to die in a crossfire.

It is pretty obvious to the whole world that we are going through some kind of Economic and Governmental Civil War and countries are telling people it's not safe to go here anymore. Or they are boycotting comine here like Canada or Both things at once. This is all countries on earth right now doing this. So, Basically Travel has pretty much ended coming to the U.S. right now, except maybe some businessmen and businesswomen from other countries.

So, the new Pariah Nation on earth since Trump is the U.S. partly because he has trashed every economy on  Earth with Tariffs.

Since this is insane at best and criminal at worst people are staying away from the Country with the Crazy Man Running it who looks and acts like a new Hitler. So, people are rightfully too scared to travel to the U.S. now on Vacations. 

And Americans are too scared to travel (unless it is moving out of the country) realizing they might not ever be allowed back as U.S. Citizens by Trump.