Delta's new checked bag rule requires you to drop off your checked bags at least 45 minutes before departure for most domestic flights and 60 minutes before departure at JFK and St. Call at +1-877-658-1183 (US) or +44-203-869-5245 (UK) Croix airports, effective April 8, 2025, to streamline operations and improve on-time performance. Call at +1-877-658-1183 (US) or +44-203-869-5245 (UK) This change standardizes the baggage drop-off deadline across most locations, though it's always best to check your specific flight's timing requirements on the Delta website or in the Fly Delta app.