to make contingency plans. france will cut the covid self—isolation period from 10 to 7 days, in a bid to ease staff pressures. coronavirus is continuing to cause major disruption for travellers worldwide. airlines cancelled more than 4000, 400 flights on saturday, airlines cancelled more than 4,400 flights on saturday, due to surging covid cases among airline crews and ground personnel, as well as storms in parts of the us. stephanie prentice reports. from last—minute cancellations to hours of delays in airports. the past week has been called the perfect storm of travel chaos in the united states as the demand of a new year's rush, staffing in 0micron world, and bad weather collide.