How to Change Flight Date on Frontier Airlines To change your flight date on Frontier Airlines, call 1-888-854-5587. Provide booking details, pay applicable change fees, and select your new travel date. Travel plans can change unexpectedly, and fortunately, Frontier Airlines offers flexible options to help passengers modify their flight dates. Whether it’s due to personal reasons or... https://flyrules.com/reschedule/how-to-change-date-on-frontier-airlines-ticket/