Volume Delays
Delays caused by air traffic demand exceeding the airport's or airspace's capacity to handle flights.
Volume delays occur when the number of flights scheduled to arrive at or depart from an airport exceeds its capacity to safely handle them. Even in perfect weather, airports have maximum hourly arrival and departure rates determined by runway configurations, taxiway capacity, and gate availability. When demand exceeds these limits, the FAA implements traffic management to spread flights over time.
- Peak travel periods (holidays, summer)
- Hub airport congestion
- Multiple airports sharing airspace
- Runway capacity limits
- Gate or ramp congestion
Frequently Asked Questions
Why do volume delays happen even in good weather?
Airports have physical limits on how many planes can land or take off per hour, regardless of weather. When airlines schedule more flights than the airport can handle, delays result.
When are volume delays most likely?
Volume delays are most common during morning and evening rush hours at major hubs, holiday travel periods, and summer months when air travel peaks.
Related Terms
Ground Delay Program
An FAA traffic management program that assigns specific departure times to flights heading to a congested airport.
Arrival Delays
Delays affecting inbound flights at an airport, typically measured as additional time beyond scheduled arrival.
Departure Delays
Delays affecting outbound flights from an airport, measured as additional time beyond scheduled departure.
Check Active Delays
See if this delay type is currently affecting any US airports.
Get Real-Time Delay Alerts
Receive instant notifications when delays affect your airport. Smart predictions powered by live FAA data.