Nancy Trejos, USA TODAY
A spokesman for United Airlines says the carrier's computers are now up and running after malfunctioning this morning and causing delays for thousands of passengers.
"We're up and running. Getting back to normal," United spokesman Charles Hobart emailed to Today in the Sky.
The Associated Press quoted passengers as saying they they had to wait up to two hours to get on their flights. They said pilots and gate agents told them that the computers were down.
Judd Shapiro of Nashua, N.H., told the AP that when he got to his flight's gate at Logan Airport in Boston, agents told him and other fliers that planes could land but not take off.
"JetBlue is taking off, American is taking off, but United is on the ground," he told the AP. "I was having a flawless airport experience until I got to the gate."
Travis Robertson emailed Today in the Sky around 11 a.m. that he was about to board his flight to Chicago's O'Hare Airport but that he was not going to make his connection to Washington D.C.
This is the third computer outage United has had since June.In March, the Chicago-based United, which merged with Continental Airlines, switched to Continental's computer system, causing problems for passengers for several days.