The boarding order starts first with active U.S. Military and passengers needing assistance. Second, Delta One and First Class passengers board. Third, Diamond Medallion Members. The fourth boarding zone is for Delta Premium Select customers and people with car seats or strollers. Fifth is Delta Comfort+ customers. Sky Priority members board during the sixth boarding zone. The seventh zone is for Main Cabin 1 passengers, which includes Delta SkyMiles Gold, Platinum, and Reserve credit card holders. Zone eight is for Main Cabin customers. Zone nine is for Main Cabin customers booked in T, X, and V fares.Basic Economy passengers board last.