Yes, Delta Air Lines Silver Medallion status expires annually. Under the 2026 SkyMiles rules, status is earned during one calendar year (the "Qualification Year") and is valid for the remainder of that year plus the entire following calendar year, officially expiring on January 31st of the year after that. For example, if you earned enough Medallion Qualification Dollars (MQDs) in 2025 to reach Silver, your status would be valid through January 31, 2027. If you do not meet the MQD threshold again during 2026, you will lose your status on February 1, 2027. Delta does not currently offer a "lifetime" Silver status, though they do have Million Miler milestones; if you reach 1 million lifetime flight miles, you are granted "Annual Silver Medallion" status that does not expire as long as the program exists. For standard members, you must continuously "re-qualify" every year to keep your benefits like free checked bags and priority boarding.