A wide computer cut affects passengers on American airlines, Alaska and JetBlue on Tuesday morning.
Many passengers report issues at the airport and online, and some say their aircraft can't take away or take them.
A spokesman for American Airlines Ross Feinstein said the problem was linked to the Saber computer ordering system.
At 11:40 am the East, an American said in a statement that the cut was a short technical subject and had to be resolved.
"We apologize to our customers for the inconvenience, 'said an American.
Just before midday, Saber also apologized on Twitter and said "a recovery is underway."
Airlines told passengers to be patient, with JetBlue responding to a passenger tweet: "Hang it tightly, we will help as soon as we can."
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