Choosing an airline is about more than ticket prices and legroom. If you have a connecting flight, an important meeting, or a long-awaited holiday planned, arriving on time can make the difference between a smooth trip and an expensive headache.

Recent U.S. Department of Transportation (DOT) statistics and Cirium aviation analytics show why some airlines deserve more credit for punctuality than others.

The bummer? An airline’s performance changes by reporting period, season, airport congestion, and weather. That means a carrier that performs well across a year can still leave passengers stranded during a difficult summer travel period.

The On-Time Rankings

The clearest annual comparison comes from Cirium’s 2025 On-Time Performance Review, released January 2, 2026. Delta led North America, while Alaska placed second.…