Mexican airline Aeromexico had the world's best record for on-time arrivals in 2024, according to an annual ranking released Thursday. Delta Air Lines scored the highest among U.S. carriers despite a computer outage that caused thousands of flight cancellations in July.

Aviation-data provider Cirium said in a report that nearly 87 per cent of Aeromexico flights arrived within 15 minutes of their scheduled arrival, a widely used measure of on-time performance among airlines.

Canada's WestJet, Air Canada and Denver-based budget airline Frontier finished at the bottom of the pack among U.S. and Canadian carriers, with on-time ratings below 72 per cent.