Delta Air Lines, along with other U.S. carriers, has significantly reduced flights between Canada and the United States in response to a steep decline in Canadian travel demand. This drop stems from a widespread Canadian boycott beginning early 2025—a reaction to U.S. tariffs and perceived disrespect of Canadian sovereignty. The boycott, endorsed by public figures including Prime Minister Justin Trudeau, has led to a 40–70% decrease in bookings, and by March 2025 airlines had cut roughly 320,000 seats on transborder routes, representing about a 3.5% reduction. Consequently, Delta has canceled multiple Canadian routes, aligning its network capacity with the weakening demand.
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