This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: JetBlue and Spirit Airlines formally called off their merger following an unfavorable January US court ruling. JetBlue and Spirit Airlines formally pulled the plug Monday on their merger, about six weeks after a federal judge ruled it violated US antitrust law. The companies had positioned JetBlue's $3.8 billion purchase of Spiri ...