Houston (IAH) Delays in 2021
81.9% on-time departures, 82.9% on-time arrivals in 2021
129,036Flights
81.9%Departures on-time
14.1 minAvg dep. delay
82.9%Arrivals on-time
13.3 minAvg arr. delay
2.1%Cancelled
Delay causes
- Air carrier43.9%
- Extreme weather14.2%
- National Aviation System15.9%
- Security0.1%
- Late-arriving aircraft25.9%
← 2020 · Houston (IAH) overview · 2022 →
On-time = arrival within 15 minutes of schedule, per U.S. DOT definitions. Source: Bureau of Transportation Statistics (public domain). Delay-cause attribution is reported by carriers since June 2003.