Frontier and Spirit Airlines will once again try to merge, only months after the Biden administration won a key antitrust court battle to block

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

Spirit, which filed for bankruptcy protection in November, called off a deal with Frontier in 2022 after receiving a higher bid from JetBlue that was ultimately thwarted by a federal judge.