About This Site
Data through July 2026 · Last updated October 18, 2026
FlyOnSchedule shows how punctual US flights are: by airline, by airport and by route. It is built for travelers choosing which flight to book, and for anyone curious about why flights run late.
What you’ll find here
- 14 airline pages with on-time rates, delay causes and their best and worst routes.
- 333 airport pages with departure punctuality by hour, day of week, month and holiday period.
- 5,108 route pages that compare every airline on the route and name the best time to fly.
- Head-to-head airline comparisons and rankings.
Where the numbers come from
Every figure is calculated from the U.S. Bureau of Transportation Statistics (BTS) “Reporting Carrier On-Time Performance” records: one row for each domestic flight flown by the larger US airlines. The current data covers 14,105,091 flights from August 2024 to July 2026. The site updates automatically each month when BTS publishes new data. See the methodology for exact definitions.
Independence
FlyOnSchedule is an independent site. It is not affiliated with, endorsed by or sponsored by the Bureau of Transportation Statistics, the US Department of Transportation or any airline or airport. Airline and airport names are used only to identify the data.
We don’t edit or estimate data. If BTS has not published a figure, we don’t show one.