In 2026, Delta Air Lines offers four primary tiers of personal and business American Express credit cards designed to suit different travel frequencies. The entry-level Blue Delta SkyMiles card has no annual fee and is ideal for casual flyers who want to earn miles on dining and Delta purchases. The Gold Delta SkyMiles card is the most popular mid-tier option, offering a free first checked bag and a $100 Delta Stays credit. Moving up, the Platinum Delta SkyMiles card is geared toward status seekers, featuring a higher earning rate on Delta purchases, a companion certificate upon renewal, and a $2,500 MQD (Medallion Qualification Dollar) "Headstart" to help reach elite status faster. At the top is the Reserve Delta SkyMiles card, which provides the ultimate luxury experience, including access to Delta Sky Clubs and Centurion Lounges, four annual guest passes, and a significant $240 Resy credit. All these cards now play a crucial role in Delta’s status ecosystem, where MQDs are the sole metric for earning Medallion tiers.