In the absence of bad weather, delays in flying may be due to the following reasons:
Air traffic control: Air traffic control refers to the control of the spacing, heading and altitude between aircraft to ensure flight safety in the case of dense air traffic. If a controller finds a safety hazard or needs to carry out flow control, it may limit flight take-off and landing times, resulting in aircraft delays.
Airport ground facilities: Airport ground facilities include runways, taxiways, aprons, etc., if these facilities are faulty or improperly maintained, it may affect the normal take-off and landing of flights. For example, the lighting system on the runway is faulty, or the signage on the taxiway is not clear.
Maintenance Maintenance: Maintenance refers to the regular inspection, maintenance and repair of aircraft to ensure the safety and airworthiness of the aircraft. If the aircraft is found to be faulty or in need of repairs, the crew may suspend the take-off and landing of the flight and wait for the repair to be completed before taking off or landing.
Airline management: The management of airlines also affects the regularity of flights. Improper coordination within the airline or other management issues may affect the normal take-off and landing of flights. For example, there are not enough pilots or crew, unreasonable flight scheduling, etc.
Other causes: Other possible causes include unexpected situations for passengers or cargo on the plane, long airport security checks, etc. All of these conditions may affect the normal take-off and landing of flights, resulting in aircraft delays.
It is important to note that the above reasons are not exhaustive, and there may be many reasons for flight delays in practice. Airlines do their best to ensure the safety and punctuality of flights, but sometimes they are affected by some unforeseen factors. 