KEY POINTS
  • Spirit and Frontier announced plans to merge in February.
  • Jetblue came in with an all-cash offer in April.
  • Both suitors sweetened their offers though Spirit delayed a vote four times as it lacked shareholder support for the Frontier deal.
A Frontier Airlines airplane taxis past a Spirit Airlines aircraft at Indianapolis International Airport in Indianapolis, Indiana, on Monday, Feb. 7, 2022.

Spirit Airlines terminated its merger agreement with Frontier Airlines on Wednesday, months after a rival bid by JetBlue Airways marred the planned tie-up.

The announcement ends a protracted battle over the budget airline known for its bare bones service and low fares. Spirit said it would continue its "ongoing discussions with JetBlue as we pursue the best path forward for Spirit and our stockholders."