CHARLOTTE, N.C. -- A massive power outage at the world's busiest airport in Atlanta caused Charlotte Douglas International Airport to feel a major impact.

"We're all just waiting to find out what's going on and what we're going to do next," said traveler Sabrina Briones.

This came at the start of a busy holiday weekend, ruining travel for hundreds here in Charlotte.

According to Georgia Power, a fire in an underground electrical facility may be to blame.

All outgoing flights were halted, arriving planes were held at the point of departure and all international flights were diverted.

Some arriving passengers were stuck on the tarmac while others said finding flight information was a struggle.

"We haven't an email or a text and I am surprised at that," said traveler Laura York.

At Charlotte Douglas airport, Delta Airlines was hit the hardest. American Airlines on the other hand, only had a few cancellations, forcing passengers to drive to other cities or wait until Tuesday to get to their final destinations.

The power outage came at the start of a busy travel season. U.S. air carriers are expected to fly 51 million passengers between December 15 and January 4, 2018.

Power has since been restored overnight in Atlanta.

As for Charlotte, an employee said the biggest concern right now is getting bags to the people who haven't made it to Charlotte yet and just getting people to where they need to go.