United Airlines flight 4166 — from Pennsylvania to Chicago — made an emergency descent after rapidly losing cabin pressure 40,000 feet above Ohio.

The plane left the Lehigh Valley International Airport in Allentown, Pennsylvania, around 5:24 a.m. and was expected to arrive at Chicago's O'Hare International Airport at 8:44 a.m.

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.

The FAA said alerts went off onboard letting pilots know they were close to another plane and 'corrective instructions' were issued to both flight crews

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

A United Airlines flight Sunday from Lehigh Valley International Airport to Chicago was diverted to Detroit because of a possible problem with the cabin pressure.

The FAA has begun an investigation into a midair incident involving a United Airlines Boeing 737-900ER and a Delta Air Lines Airbus A330-300.

The United Airlines flight was forced into a sharp fall after experiencing a sudden fault at 40,000ft prompting an urgent call to air traffic control

Passengers on a United Airlines flight from Allentown, Pennsylvania, to Chicago were diverted to Detroit Metropolitan-Wayne County Airport after their plane lost cabin pressure at 40,000 feet.

The decision to move Monday's swearing-in means thousands of people with plans to visit Washington won’t be able to see President-elect Donald Trump’s second inauguration in person.

CHICAGO (WLS/CNN/CNN Newsource/WKRC) - A United Airlines flight returned to the airport after striking a coyote during takeoff. A United Airlines flight was forced to return to Chicago O'Hare Airport on Sunday after the aircraft struck a coyote during takeoff.

Spirit Airlines launches new flights to tropical getaways like Punta Cana and San Juan, making your Spring Break affordable and convenient.