Flight 175 left Los Angeles International Airport at 11:36 a.m. Tuesday and returned to LAX at 7:33 p.m.
A statement from the airline says the pilot decided to return to the originating airport as part of the airlineās security procedures.
Model Chrissy Teigen was aboard and live-tweeted the developments. She wondered on Twitter why the plane was turning around hours into the 11-hour flight.
ANA says itās trying to determine how the passenger boarded the wrong flight.
In an apology to inconvenienced passengers, the airline says it takes pride in customer service and failed on this flight.
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