Air Canada to Expand San Antonio Service in May 2027

The airline will increase flights between San Antonio and Toronto as the airport continues to target growth in international travel.

Updated on Oct. 15, 2026 in Air Travel

Air Canada to Expand San Antonio Service in May 2027

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Air Canada will resume its seasonal service between San Antonio International Airport and Toronto Pearson International Airport in May 2027. The airline is increasing the frequency of this route from three to four flights per week.

Why it matters

Airport officials are working to bolster international service to offset recent passenger declines and the market gap left by Spirit Airlines. Expanding key routes is part of a broader effort to increase traffic amid ongoing infrastructure improvements at the terminal.

In August 2026, the airport recorded 831,000 total passengers, with domestic volume falling 4.6% while international traffic grew 7.9%. The facility is currently undergoing renovations to boost gate capacity to 36 or 37 gates by 2028.

The players

Air Canada

This is the flag carrier airline of Canada that operates domestic and international flight services.

San Antonio International Airport

This facility serves as the primary commercial airport for the city and surrounding region.

Breeze

This is a low-cost American airline that provides regional flight services across the United States.

Delta Airlines

This is a major legacy airline that maintains a significant network of domestic and international flights.

The details

The facility has experienced consecutive year-over-year declines in total passenger volume since January 2025, partially due to the loss of Spirit Airlines which previously held up to 10% of the market. Meanwhile, Breeze is planning to expand Memphis service in April 2027, and Delta will add daily flights to Los Angeles next summer.

Condor ended nonstop service to Frankfurt in 2024.
Monthly passenger declines have continued since January 2025.
The airport served 831,000 passengers during August 2026.
Air Canada is set to conclude its current flight schedule on October 24, 2026.
A new terminal expansion is expected to be completed in 2028.

Travel Outlook

The push to secure new routes reflects the airport's attempt to stabilize traffic levels following the 2026 bankruptcy filing of Spirit Airlines. These airline commitments align with the facility's long-term strategy to pivot toward international expansion during its multi-year terminal renovation.

Travelers looking to book flights to Toronto for the 2027 season should monitor the expanded four-day-per-week schedule for better availability. Passengers should also prepare for ongoing construction impacts as terminal renovations are scheduled to continue through 2032.

The takeaway

San Antonio International Airport is actively diversifying its airline partners to rebuild connectivity after a period of declining passenger traffic. Travelers can expect more flight options as new capacity comes online through 2028.