and

A Chicago-based violinist, Mulcahy serves as the concertmaster of the Wichita Symphony Orchestra, and has to regularly make the roughly 700-mile flight between Illinois and Kansas as a result.

On Friday, more than 6,400 flights within, into or out of the U.S. were delayed and more than 1,000 were cancelled altogether, according to data from FlightAware.

And with no immediate end to the shutdown in sight, that pattern is likely to continue.

And that could become all the more significant if the shutdown lasts through Thanksgiving, one of the busiest times of the year for personal travel.

But business travel is a $1.48 trillion global industry, and airlines are naturally a key part of that.