Incredibly, clever 13-year-old Charlie had been off radar for two weeks before boarding a train at Colne, in Lancashire.
Train staff think he hopped on and when the doors were open at the busy commuter station, before waiting seven stops and getting off in his home town of Accrington.
Kinder Kaur, his baffled owner, had re-homed the feline five months ago and told the Daily Express: "It's unbelievable. My 14-year-old daughter Kelly is so happy."
It wasn't until another passenger saw him exit the train, that he called a local rescue centre. Charlie was then reunited with his bemused owners.
Andy Richards from East Lancashire Cats, was quoted saying: "Cats have an amazing homing sense but I've never known this before."
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