While a Costco membership might save you some dollars in your weekly grocery shop, one thing it won’t do is get you through airport security. The Transportation Security Agency has issued a statement clarifying that a Costco card cannot be used as valid ID when flying domestic.

The TSA clarified this week that Costco membership cards are not acceptable as a newly required REAL ID at airport security checkpoints.

Since May 7, 2025, travelers have needed a REAL ID-compliant driver's license or state ID to board domestic flights. And now, TSA is putting its foot down, telling travelers that their Costco cards do not count as a valid form of ID to travel with.