Deutsche Lufthansa AG was hit with a proposed $6.4 million fine Wednesday by U.S. aviation authorities over accusations that the carrier operated about 600 flights into San Diego and Philadelphia without proper approval.
The Federal Aviation Administration said Lufthansa knew it lacked authorization to fly to the two cities from March 22, 2018, through May 27 of this year, the agency said in a press release.
The airline has 30 days to respond to the allegations. Airlines and other companies often negotiate lower penalties after FAA civil complaints are filed.
