Airline travel between the U.S. and Canada has dropped by 70% compared to the same time last year, the result of dueling tariffs between the two countries and U.S. overtures to make Canada the 51st state.

Canadians are taking their vacation dollars and going pretty much anywhere other than the U.S., and airlines are taking note of the shifting travel patterns.

Bookings for flights between the US and Canada have plummeted as President Donald Trump threatens tariffs on Canadian goods and challenges the country's sovereignty. Airline capacity between the neighboring nations has been reduced through October,