Widespread computer outage affects passengers on American, Alaska and JetBlue airlines

Passengers on American, Alaska and JetBlue airlines were greeted with travel hassles Tuesday morning due to a brief computer outage.

Passengers couldn’t check in, and the boarding of flights was held up due to a technical glitch at airline reservations giant Sabre.

The problem lasted about 30 minutes, American spokesman Ross Feinstein said. No flights on the airline were canceled.

“We apologize to our customers for the inconvenience,” the airline said in a statement.

Sabre also apologized via Twitter, blaming a “system issue.”