A ground stop delayed hundreds of flights at Phoenix Sky Harbor Airport on Thursday morning. Here's what caused the slowdown.

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The Federal Aviation Administration is investigating a narrowly missed midair collision between a United flight and a Delta flight at Phoenix Sky Harbor International Airport on Saturday, the ...

The Federal Aviation Administration (FAA) is investigating a narrowly missed midair collision between two planes carrying hundreds of passengers at Phoenix airport over the weekend. A United ...

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The Federal Aviation Administration is investigating after a United Airlines flight and a Delta Airlines flight had a near-collision over Phoenix on Saturday.

The Federal Aviation Administration is once again looking into a close call at a major U.S. airport, after two passenger jets narrowly avoided a mid-air collision as they attempted to land in Phoenix.

Two passenger planes nearly collided midair - with 400 people on board between them - before landing in Phoenix, and now the FAA is investigating.

The close call between the United and Delta flights at the Phoenix airport comes amid an increase in plane near-collisions.

The FAA is investigating a narrowly missed midair collision between a United flight and a Delta flight at Phoenix Sky Harbor International Airport on Saturday, the agency said.