empty slots
Ghost flights: Why the sky is full of empty planes? - Vietnam ...
As the coronavirus outbreak means more and more people are avoiding air travel, airlines have been forced to run empty or near-empty “ghost flights” in order to hold onto coveted airport slots.
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Body Equipment, Helmets, Version 4.0 Implementations, ... You see a warrior helmet (Arm:8). Imbuements: (Empty Slot, Empty Slot). Classification: 2 Tier: 0.
A Methodology for Allocating Incremental Resources in Single-Airport ...
This scheme is supposedly designed to prevent excessive flight cancellations but has instead resulted in airlines sending empty flights to avoid losing slots.