ATLANTA - United Airlines is getting back on schedule after a system malfunction caused flight delays.

In a statement, the airlines explained the delays were due to a problem with its weight reporting system:

"Earlier tonight we experienced an issue with our weight reporting system, which caused system wide flight delays. We have resolved the issue and are working to get customers to their destinations as soon as possible. We apologize for the inconvenience."

United Airlines initially tweeted about the issue at 2:30 a.m.

The airline said "a small number of flights" were impacted overnight with the majority of the delays affecting passengers along the west coast and international flights.

The airline operates more than 4,500 flights per day.

Watch Atlanta Alive for updates throughout the morning.