United Airlines

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The aircraft landed safely and no injuries were reported.

The special trips, all staffed by United volunteers, run through Dec. 19.

Republic and Mesa formally merged as Republic Airways Holdings in November.

The FAA on Friday warned civilian operators about the “worsening security situation” in the country.

The carrier argued that a “window” designation refers only to the position of a seat in the cabin.

The FAA’s mandatory 4% air traffic reduction will grow to 6% on Tuesday.

A 4% air traffic cut took effect on Friday.

The carriers cited the growing strain on unpaid air traffic controllers, TSA agents, and customs officials.

Investors were advised to watch developments in the rail sector for clues about future consolidation among airlines.