Aviation analytics firm Cirium has compiled its annual ranking of the airlines and airports with the best on-time records.

Cirium, an aviation analytics firm, analyzes over 25 million data points each day to determine if airlines are meeting their scheduled arrival times.

Aeromexico operates the highest proportion of on-time flights, followed by Saudia and Delta Air Lines, according to a new report.

Delta ranked highest among U.S. carriers despite a computer outage​ in July that caused thousands of cancellations.

Across the industry, a flight is considered on time if it arrives less than 15 minutes before its scheduled time.

Mexican airline Aeromexico had the world’s best record for on-time arrivals in 2024, according to new analysis. Delta Air Lines was the top-ranked U.S. carrier. Aviation-data provider Cirium’s annual On-Time Performance Review found 86.