American, United, Delta, Alaska impacted

One of America's largest regional carriers, SkyWest Airlines, has canceled hundreds of flights two days in a row, and it's not the only airline impacted.

The Utah-based carrier operates flights for American, Delta, United and Alaska airlines.

"SkyWest experienced an internal technical issue, resulting in approximately 700 flight cancellations before the issue was resolved Thursday evening," SkyWest told USA TODAY in a statement. "We apologize to customers for the inconvenience; we are working to minimize the impact on Friday’s schedule and to return to normal operations as quickly as possible."

Nearly 300 SkyWest flights were canceled Friday, according to FlightAware, which tracks flight cancellations and delays in real time.

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United Airlines' website had said the issue was a server outage at SkyWest.

Delta Air Lines told USA TODAY, "Our technical teams engaged with SkyWest IT to resolve the issue and minimize the impact on our customers. We are working with customers directly to accommodate them to their destination as soon as possible and apologize for the inconvenience."

Roughly 170 of American Airlines' flights were impacted Thursday and about 50 more were affected Friday, the airline told USA TODAY, adding that it's been working to re-accommodate passengers and provide hotel vouchers as needed.