Frontier Airlines (ULCC.O), opens new tab pilots have voted to authorize a strike, the Air Line Pilots Association said on Tuesday. 99% of the votes cast were in favor of the strike, the ALPA added. According to its website,

Frontier Airlines pilots have voted to strike if their negotiations with managers break down, the union announced on Tuesday. In strike authorization voting, 97% of pilots participated and 99% voted in favor of a strike if necessary,

Pilots with Denver-based Frontier Airlines took the first step toward a possible strike on Tuesday. About 99% of participating pilots voted in favor of a strike if contract negotiations fail.