with national commerce grounding to a halt. the f.a.a. says it still expects some issues. the agency has only cleared equipment on about 45% of airliners to operate with 5g networks. already, emirates, j.a.l., and air india canceled flights to several u.s. cities until the situation was worked out. airline industry analyst henry harteveldt: >> if you don't have to travel on wednesday, don't. if you can postpone your trip, even 24 hours, you may be better off. i think wednesday's going to be a very chaotic day. >> reporter: the threat of 5g-related flight disruptions comes after a trying month for fliers who have suffered through tns of thousands of delays and cancellations due to weather and covid-19 staffing issues. >> it's a "fasten your seat belt, hang on" kind of week and the next few weeks as well. >> o'donnell: kris van cleave joins us now from denver international airport. so, chris, how scary is this? >> reporter: airlines remain concerned, even with this deal. a senior f.a.a. official told me