Stephan Savoia
FILE - In this Jan. 20, 2011, file photo, an American Eagle jet taxis at Boston's Logan International Airport. The Transportation Department announced Monday, Nov. 14, that they are fining the regional affiliate of American Airlines $900,000 for keeping passengers cooped up on planes for over three hours in Chicago at O'Hare International Airport earlier this year. (AP Photo/Stephan Savoia, File)

American Airlines said Thursday it fixed a glaring issue that originally left thousands of flights without pilots, according to the Dallas Morning News.

Now, "only a few hundred" flights remain without a pilot. American has yet to cancel any flights, the Morning News reported.

The Allied Pilots Association, which represents employees for American Airlines, said Wednesday that a scheduling error from the airline had affected more than 15,000 flights from Dec. 17 to 31, according to Reuters.

A computer glitch allowed all American Airlines pilots to take vacation for the week of Christmas, leaving thousands of flights without a pilot.

“Basically there’s a crisis at American for manning the cockpits,” Dennis Tajer, a spokesman for the Allied Pilots Association, told Reuters.

American Airlines flies out of Salt Lake City International.

"I heard about the glitch, but haven’t heard that is impacting Salt Lake City," said Nancy Volmer, spokeswoman for the airport.

The union told the airline about the problem last Friday, CNBC reported.

"It's a really bizarre situation," a union spokesman told CNBC.

American spokesman Matt Miller told the Dallas Morning News that the company planned to fix the issue on Wednesday.

The company said it planned to offer employees 150 percent of a pilot’s hourly wage to work those holidays, according to the Dallas Morning News.

But the pilots union filed a grievance, saying the company violated the labor contract. The union wanted input on how to fix the issue.

"This is certainly not routine," Tajer told the Morning News at the time. "This is a crisis right now, and in that crisis, they've gone solo."

Earlier this year, Ryanair, a budget airline in Ireland, canceled close to 2,000 flights in September so its staff could take a vacation, leaving thousands of passengers without flights for their holidays.

Meanwhile, Delta announced this week that the company flew 23,000 flights for 2.35 million customers without a single cancellation during the Thanksgiving holiday. The flights ran from Wednesday to Sunday, with an on-time rate of 92.7 percent.

A successful weekend added to the 11-day streak for Delta without a cancellation for its mainline or Delta Connection regional flights. The company also has a 42-day streak on just the mainline.

This article has been updated.