It's National Plan for Vacation Day, which coincides with some of the darkest, coldest days of winter. To help travelers observe – and possibly boost their moods – United Airlines is running a promotion that offers bonus frequent flyer miles to travelers who book flights to select international destinations.

Nearly 40 people were injured, with six seriously injured, when a Boeing aircraft operated by United Airlines suddenly plunged in mid-air, forcing the fight to make an emergency landing.

Nearly 40 people were injured when a Boeing 787-800 plane suddenly lost altitude during a United Airlines flight from Lagos, Nigeria, to Washington, D.C., early Friday, officials said.

Six people were injured on a flight from Nigeria to Virginia. The airline also saw a series technical issues in March.

Nigerian Airspace Management Agency, NAMA, has said contrary to reports, United Airlines flight UAL 613, which departed Lagos en route Washington with 256 passengers and 11 crew members on January 24,

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United Airlines posted better-than-estimated fourth-quarter results and gave a bullish current-quarter outlook on the back of increased consumer demand for premium travel.

The plane headed back to Nigeria after experiencing "unexpected movement" mid-flight on Friday, Jan. 24, according to multiple reports

A jet with 60 passengers and four crew members aboard has collided with an Army helicopter while landing at Ronald Reagan National Airport near Washington

A regional passenger jet that departed from Wichita carrying about 60 passengers crashed midair into an Army helicopter and then Wednesday night as it attempted to land at Reagan Washington National Airport,

A multi-agency search and rescue operation is underway in the Potomac River after a small American Airlines aircraft collided with an Army helicopter near Reagan National Airport, authorities confirmed.