In Delta Air Lines' boarding hierarchy, Main Cabin 2 is a specific boarding zone, typically identified as Zone 7 in the 2026 eight-zone system. This group is primarily composed of travelers who do not have any frequent flyer status (SkyMiles Medallion) and are not using a Delta-branded American Express credit card. It is the second-to-last group to board, occurring after the "Main Cabin 1" (Zone 6) flyers who are SkyMiles members. The only group that boards after Main Cabin 2 is "Basic Economy" (Zone 8). For passengers in Main Cabin 2, the primary challenge is overhead bin space; because so many priority and status groups have already boarded, bin space is often full by the time Zone 7 is called, leading to many carry-on bags being "gate-checked" to the final destination. To avoid being in this later group, travelers are encouraged to join the free SkyMiles program, which usually bumps them up to Main Cabin 1 (Zone 6), providing a slightly better chance of securing space for their luggage in the cabin.