An unprovoked passenger repeatedly punched the victim in the face and head, authorities said. Another passenger intervened, and police arrested the suspect as soon as the plane landed. 

The FBI says Everett Chad Nelson attacked a sleeping passenger on his flight Monday. The assault appeared to be sudden and random.

Flight attendants are demanding significant double-digit base pay increases, compensation for time at work outside of flights, schedule flexibility and more.

Flight UA1196 encountered "a brief period of severe turbulence" Wednesday afternoon, United Airlines said in a statement.

Disturbing video obtained by TMZ shows a woman seen biting a flight attendant’s uniform in the midst of a meltdown.

A tire fell off a Boeing 757 when it was taking off from Los Angeles International Airport on Monday.

A United 757 plane lost a main landing gear tire while taking off from Los Angeles International Airport. No one was hurt and the plane continued its flight to Denver, landing without incident.

A United 757 plane lost one of its main landing gear tires as it took off from Los Angeles International Airport Monday morning, the airline said.

Pioneering pilot Capt. Theresa Claiborne has retired after 43 years of flying, first in the U.S. Air Force then as a Captain at United Airlines.

Mike Savage is retiring as a plane mechanic at United Airlines after 46 years. His daughter, Julie Savage, a pilot, surprised him at the gate where he works on his last day.

Hired by United 34 years ago, Theresa Claiborne previously made history as the first Black female pilot in the U.S. Air Force.

The DOJ noted that the passenger threatened to "mess up the plane" amid the altercation.

United Airlines is offering a 13% discount on certain flights booked April 19 in tandem with the new Taylor Swift album, "The Tortured Poets Department."

The airline is asking pilots to take unpaid time off because it won’t have as many planes as it was expecting due to Boeing scaling back production as it faces FAA scrutiny over its safety standards.

Several were injured and more treated for motion sickness as a flight from Tel Aviv was diverted due to heavy turbulence as it tried to land at Newark airport.

After several recent mishaps, the FAA confirms its increased oversight of United Airlines to identify and ensure safety.

The Federal Aviation Administration is stepping up its oversight of United Airlines after a string of incidents.

United Airlines has announced it will allow groups up to five people on a MileagePlus account to share and redeem miles.

In a letter to customers, CEO Scott Kirby said "safety is our highest priority" after a number of high-profile incidents at the airline.

Scott Kirby assured customers in a letter that "safety is our highest priority" after a number of high-profile incidents raised concerns.

A flight from Memphis to Houston rolled off the taxiway and into the grass but none of the passengers and crew were hurt.

A United flight lost one of its tires after taking off from San Francisco on Thursday, causing the Japan-bound plane to be diverted to Los Angeles, the airline said.

A United Airlines flight lost one of its tires during takeoff from San Francisco on Thursday, causing the Japan-bound plane to be diverted to Los Angeles, where it landed safely, the airline said.

A United Airlines plane en route to Fort Myers from Houston on Monday made an emergency landing after flames were seen coming out of one its engines.

The United Airlines flight was heading from Newark, New Jersey, to Los Angeles when the crew reported a security issue.

United Airlines says that it has found loose bolts during inspections of its 737 Max 9 fleet in the wake of a door plug getting blown out of an Alaska Airlines plane.

United Airlines announced in an internal memo it is implementing WILMA boarding which goes in order of window, middle and aisle seats for economy passengers.

United Airlines initially said it was "experiencing a systemwide technology issue."

United Airlines flights are resuming following a brief nationwide ground stop due to a computer issue, the airline said.

The airline said they were "experiencing a systemwide technology issue."

United Airlines announced Thursday that it is the first U.S. airline to add Braille to its aircraft cabin interiors.

United Airlines pilots, who have been flying without a raise for more than four years, took to picket lines in several airports as summer travel season approaches.

The incident occurred on a United Airlines flight that was preparing to fly from San Francisco to Houston.

A passenger has been banned from flying with United Airlines following an incident that occurred on a flight from San Francisco to Houston.

An angry male passenger was seen on video striking a United Airlines employee while on a flight from San Francisco to Houston.

The acting FAA chief is set to testify on Capitol Hill after several close calls in the sky and new details were released about a suspect accused of trying to open an emergency door exit.

The FBI is now investigating after the suspect reportedly attempted to open the emergency exit door and tried to stab an attendant prior to landing.

Four people were taken to the hospital after an external battery caught fire on a United Airlines flight early Tuesday.

United Airlines could pay a $1.15 million fine after allegedly conducting flights with planes that were not in airworthy condition, the FAA said

A fire Sunday morning in a laundry room at the George Bush Intercontinental Airport prompted a ground stop on all United Airlines flights to Houston, officials said.

Two travelers said United Airlines lost their wheelchairs after taking a flight with the carrier earlier this week.

"I'm apologizing to them daily," Southwest CEO Bob Jordan said.

A United Airlines flight traveling from Chicago to Miami experienced a bird strike, with a passenger capturing video of flames shooting from the engine.

The Federal Aviation Administration fired back after the airline's COO blamed the FAA over staffing issues at air traffic control centers.

The United official blamed a shortage of air traffic controllers and the weather for the majority of recent delays and cancellations.

United Airlines said an employee was fired after allegedly slapping former NFL player Brendan Langley at the bag-drop desk at Newark Liberty International Airport last week.

Authorities said there were no injuries reported among the 13 passengers and three crew members aboard a United Express flight.

The 40-year-old was taken into custody, but has since been released.

Scott Kirby speaks to "GMA" about how the airline has braced for almost twice as much air travel as last year and safety measures with the omicron variant on the rise.

The fire broke out in the tail end of the plane while it was at the gate. No passengers or crew were on board at the time and no one was hurt.