0001743907 2025-09-22 2025-09-22 0001743907 sncy:TheNasdaqStockMarketLLCMember 2025-09-22 2025-09-22 0001743907 2025-09-22 false 8-K Sun Country Airlines Holdings, Inc. DE 001-40217 82-4092570 2005 Cargo Road Minneapolis, MN 55450 (651) 681-3900 false false false false Common Stock, par value $0.01 per share SNCY NASDAQ false