Airlines Warn of Flight Delays as AT&T, Verizon Balk at 5G Delay

Airlines warned of increased flight delays after AT&T Inc. and Verizon Communications Inc.brushed aside a U.S. government request to postpone new 5G service that aviation interests say risks safety because it may interfere with aircraft electronics.

The two wireless companies on Sunday said the request from Transportation Secretary Pete Buttigieg and Steve Dickson, administrator of the Federal Aviation Administration, would be “to the detriment of” millions of mobile customers. The companies said they might offer a six-month pause near some airports.

The FAA and DOT were considering the response Sunday but airlines and regulators predicted substantial impacts ...