From longstanding brands like Southwest to newcomers like Avelo, here's what you need to know about the US's budget airlines.

Frontier Group Holdings Inc.’s stock rose nearly 5% Wednesday, after the low-cost carrier said it has made a compelling new offer to combine with Spirit Airlines Inc. by issuing new debt and ...

Frontier Airlines is attempting for a second time to merge with the now bankrupt Spirit Airlines, which declared bankruptcy ...

It's never really too late, is it? More than a year after trying, does a Frontier-Spirit merger still makes sense? Yes, it does. From a perception standpoint, it’s hard to be the jilted lover. A ...

Frontier Group has made another bid for Spirit Airlines. Read how the merger would seek to create a stronger competitor with better scale but why I am not buying.

Frontier is making an offer to combine operations with the beleaguered Spirit Airlines, which filed for bankruptcy in November. Spirit says it is still carrying on with its plans to be a ...

D.C. plane crash was “absolutely" preventable, new transportation secretary ...

Frontier Airlines is making another offer to merge with bankrupt Spirit Airlines, less than two years after a previous plan fell through. Frontier said in a statement Wednesday that the ...

Frontier Airlines ULCC-7.05%decrease; red down pointing triangle is making another run at a deal for struggling rival discounter Spirit SAVEQ-9.26%decrease; red down pointing triangle Airlines.

Frontier Airlines on Wednesday announced a new bid to merge with Spirit Airlines after a previous effort failed and Spirit declared bankruptcy. File Photo by Bill Greenblatt/UPI Jan. 29 (UPI ...