Major international airlines are scrambling to reschedule or cancel flights to the U.S. as it grapples with a 5G rollout that's triggered widespread air safety concerns.
That's despite American telecoms giants Verizon and AT&T agreeing on Tuesday to temporarily delay parts of the rollout around key airports.
The Federal Aviation Administration (FAA) has warned that potential 5G interference could affect some planes' ability to make landings in bad weather.
Airlines say the Boeing 777 is one of them.
That's prompted airlines like Emirates -- the world's largest operator of Boeing 777s -- Japan Airlines, and Korean Air to cut back on flights to the U.S., or switch to other planes.
All that comes after days of pressure from airlines, lawmakers and U.S. officials to delay the 5G deployment and avert a larger aviation crisis.
Tuesday's announcement delaying the deployment for the third time was met with praise from the Biden administration, which said more than 90% of the deployment could go forward as scheduled.
But industry sources say it arrived too late to affect complex aircraft and crewing decisions for some Wednesday flights.
The FAA and airlines have yet to agree on a permanent solution to the 5G crisis.