Thousands of flights have been canceled since Friday due to airline staff testing positive for Covid or being forced to self-isolate after contact with infected individuals, with Chinese and WE airlines being the hardest hit and further delays and cancellations expected on Monday as recorded Covid cases rise sharply worldwide mainly due to the Omicron variant.

1. Thousands of flights are canceled
More than 7,500 flights have now been canceled since Friday
and over the Christmas weekend, according to the Flight
Aware data tracking website.
Chinese and WE airlines appear to be the hardest hit, with
further delays and cancellations announced for Monday.
Companies say the cancellations are due to airline crews
testing positive.
Staffs that have not tested positive but have been in contact
with those infected are then being forced to self-isolate.
Recorded Covid cases are rising sharply around the world,
largely driven by the Omicron variant many business listings.