The families of the MH370 victims have long pushed for the search for the missing plane to be extended, but whether Friday's news will change anything for them remains unclear.
United said in a statement Sunday that neither a marshal nor other authorities was involved.
The Federal Air Marshal Service has so far managed to evade budget cuts proposed by President Trump.
The incident follows closely upon United's refusal to allow two teenage girls in leggings to board a flight.
A British Muslim has said he is frustrated by a lack of information after being taken off a flight to the United States.
A fellow passenger tweeted what was happening, asking "since when does United police women's clothing?"
President has temporarily barred travelers from 7 Muslim-majority nations, as well as all refugees, from entering the U.S.
The JetBlue Airways flight will take off from Fort Lauderdale, Florida, and land in Santa Clara.
An aircraft as long as a football pitch and as tall as six double-decker buses has lifted off.
Writing for Newsweek, André Borschberg and Bertrand Piccard reflect on their journey.
The singer was with Prince on the fateful flight that made an emergency landing six days before his death.
Damaged recorders are crucial to determining what went wrong on flight MS804.
The Solar Impulse 2 stops at JFK airport during historic bid to navigate the globe without any fuel.
Hamad el Kaddah opens up about the loss of his friends and colleagues in last week's crash.
Authorities stress that no possibility is being ruled out as they probe what took down Paris-to-Cairo flight with 66 on board.
Ian Phillips is philosophical about his near miss and offers his sympathies to those who lost loved ones.
The Solar Impulse team successfully landed in California after a 62.5-hour flight from Hawaii.
The report comes almost a year after co-pilot Andreas Lubitz crashed Germanwings Flight 9525, killing all 150 on board.
U.S. airlines can now apply to operate daily commercial routes to Havana and other Cuban cities.