Air Canada grounded most of its flights in response to a strike by its flight attendants. Here's what it means for airline passengers in the U.S.

About 200 Air Canada flights are to the U.S., according to The Wall Street Journal. The strike comes as Canadians increasingly avoid the United States because of diplomatic tensions between the neighbors. With more Canadians taking vacations at home, Air Canada has seen extra pressure on domestic routes.

Air Canada has canceled hundreds of flights — many of them international flights — as a potential strike by flight attendants looms.