Even volcanic eruptions crop up with surprising frequency and result in vast disruptions to air traffic. Those disruptions can last for weeks and can shut down a single hub or potentially multiple hubs across a region depending on which way the ash cloud blows.
As an example, every few years the volcano on Bali comes to life and hundreds, if not thousands, of flights get delayed or canceled.
As an example, every few years the volcano on Bali comes to life and hundreds, if not thousands, of flights get delayed or canceled.