Delta Sky Club members in the US now need nothing more than a fingerprint to gain entry to the carrier’s lounges across the country.

The airline has rolled out biometric entry at all 50 US Sky Clubs in a partnership with Clear, which uses fingerprint scans as part of its airport security pre-clearance programme.

Rather than presenting a membership card or boarding pass at the Sky Club entrance, Clear members can identify themselves by placing two fingers on the touchpad of a biometric reader.

Sky Club members who are not currently in Clear can register for Delta Biometrics for no charge by visiting a Clear kiosk, located in 14 Delta Sky Clubs. Note that you must be a US resident or permanent citizen to register.

Club members also can get discounted rates on Clear enrollment, while Delta’s Diamond Medallion member benefits include complementary Clear registration.

“From unlocking our phones to entering the workplace, more and more people have the option to use biometrics as a form of identity verification for daily activities,” said Delta Chief Operating Officer Gil West.

“Having that option is quickly becoming an expectation that we are working hard to meet through this programme.”

Delta debuted biometric entry at its Sky Clubs at Washington Reagan International Airport and Atlanta’s Hatfield-Jackson International Airport last year. Biometric readers are also in use for boarding at Reagan and for Delta baggage check at Minneapolis-St. Paul International Airport.