New data from Statistics Canada shows total Canadian air passenger traffic in October was up by 4.5% to five million travellers from the same time last year, but the number of people on U.S.-bound trips is down 8.9% to 1.2 million travellers.

The drop comes almost a year after Donald Trump first started musing about making Canada the 51st state, a threat he has repeated throughout the trade war.

The U.S. Travel Association estimates international tourism spending in the U.S. will fall by 3.2 per cent this year and attributes Canadians boycotting the U.S. as the “primary driver” for the $5.7-billion US loss.