United Airlines reports ticketing problems at airports nationwide

DIA expected to get back to normal soon

United Airlines passengers at airports across the country took to Twitter Tuesday morning to complain about problems printing boarding passes and luggage tags.

At 8:20 a.m. United Airlines reported intermittent nationwide problems with their ticketing system, Laura Coale with Denver International Airport confirmed. 

Agents had to hand-write tickets and lines built up at the ticket counters, Coale said.

"@united some people can print boarding passes, no baggage tickets printing. We're going to miss our flight," @mirthfulabode tweeted Tuesday morning.

"@united all your systems are down at sfo and ur (sic) reps are HANDWRITING TICKETS!!!" @tawny_mmkay tweeted.

United responded, "We're aware of the problem. We're working to fix it as quickly as possible."

The system was reportedly back online at about 9:45 a.m. Delays at DIA were minimal, Coale said, and operations were expected to return to normal quickly.

Some disgruntled travelers said the delays were still a problem at 10:45 a.m.

"Delays are absolutely nuts. Already missed my 10:09 departure," @jessewilkins tweeted.