Spirit Airlines is rebuffing the latest takeover offer from Frontier Group, with the discount airline saying that it prefers ...

Frontier Airlines is attempting for a second time to merge with the now bankrupt Spirit Airlines, which declared bankruptcy late last year as budget airlines struggle.

The biggest U.S. airlines have snagged some of Spirit’s budget-conscious customers by offering their own brand of bare-bones tickets. And fares for U.S. leisure travel — Spirit’s core ...