Spirit Airlines announced it will cut 200 jobs in an effort to reduce costs after filing for bankruptcy in November.

The lawsuit alleges Southwest illegally operated chronically delayed flights and disrupted passengers' travel plans.

Southwest Airlines was sued in federal court by the Department of Transportation, while Frontier was hit with a $650,000 fine.

A lawsuit filed against Southwest alleges the airline operated multiple “chronically delayed” flights affecting thousands of passengers.

Frontier Airlines recently announced new benefits for members of its loyalty program, including a fast-track offer that helps travelers achieve Elite Platinum status with as little as 20,000 points.

The US Department of Transportation sued Southwest Airlines and fined Frontier Airlines for flight delays, seeking civil penalties against Southwest and imposing a $650,000 fine on Frontier, part of a broader crackdown on airline delay issues.

According to Sharon Petersen, the CEO of AirlineRatings.com, while Air New Zealand came in first place for the world’s safest full-service airline, it was a pretty close race. There was only a 1.5-point difference between that airline and Qantas, which both “uphold the highest safety standards and pilot training,” as noted by Petersen.

The lawsuit filed in California alleges that Southwest illegally operated chronically delayed flights and disrupted passengers’ travel plans.

The US Department of Transportation (USDOT) is suing Southwest Airlines for “illegally operating multiple chronically delayed flights and disrupting passengers’ travel,” according to a press release.

The Department of Transportation has sued Southwest Airlines, alleging the carrier operated chronically delayed flights.

(ABC 6 News) — The U.S. Department of Transportation says it is prepared to take airlines to court over flight delays. The agency has filed a lawsuit against Southwest, accusing the airline of illegally operating chronically delayed flights and disrupting passengers’ travel plans.