Travel demand tends to cool after Labor Day, which marks the unofficial end of the U.S. summer season.
Britain's biggest airport, Heathrow, on Tuesday warned of a possible slowdown in travel demand this winter.
As companies call their employees back to office, business travel demand has received a boost.
Prior to the pandemic, business travel accounted for up to 50% of the U.S airline industry's passenger revenue, according to trade group Airlines for America.
"We're looking at business travel," Christopher Raite, senior analyst at Third Bridge, said.