About AirDelay

AirDelay is a free, comprehensive resource for US flight delay statistics. We analyze millions of flight records from the Bureau of Transportation Statistics to help travelers make informed decisions about when and how to fly.

What We Offer

• Airport Statistics: On-time performance, delay causes, best times to fly, and airline rankings for every US airport
• Airline Comparisons: Head-to-head performance data for all major US carriers
• Route Data: Detailed delay statistics for thousands of domestic routes
• Rankings: Best and worst airports, airlines, and routes
• Compensation Guides: Information about your rights when flights are delayed or cancelled

Our Data

All statistics are based on official data from the Bureau of Transportation Statistics (BTS), covering 2019 through 2025. We process over 42 million individual flight records to generate our aggregated statistics. See our data sources page for details.

Disclaimer

AirDelay is an independent website and is not affiliated with any airline, airport, or government agency. Historical statistics do not guarantee future performance. Always check with your airline for real-time flight status.

Contact

For questions or feedback, please contact us at hello@airdelay.org.