The fully-grown dog escaped at Tokyo's Haneda airport while cargo crews were loading its cage onto a Japan Airlines flight bound for Naha in Okinawa around 8:50 am, airport police said.
It appeared to enjoy its brief taste of freedom, dashing across a runway and sniffing around in grassy areas.
But officials had to close one of four runways for a total of six minutes, causing delays for 14 flights, said a police spokesman.
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