United Airlines (UA, Chicago O'Hare) has become the first airline to deploy an aircraft retrofitted with Split Scimitar Winglets into revenue service. The devices were fitted to one of the airline's B737-800s, N37277 (msn 31595).

"United flight 1273 took off from our Houston Intercontinental hub and flew to Los Angeles International. We installed the innovative winglets on the Boeing 737-800 after the FAA approved the technology made by Boeing (BOE, Washington National) partner, Aviation Partners Boeing (APB) earlier this month," the airline said in a statement.

Last year, United served as the launch customer for the Split Scimitar winglet when it made a firm commitment with APB, to retrofit its B737-800 and B737-900(ER) aircraft.