Cupcake is an incredibly lucky cat.

The Siamese survived being stuck inside a small box for eight days after her owner accidentally put her in the post.

Julie Bagott didn’t spot her pet snoozing inside the parcel as she packed it with DVDs at her home in Falmouth, in southwest England. Then she dropped the box in the mail.

After traveling for 260 miles, Cupcake arrived in Worthing, West Sussex, on the other side of the country.

The package's recipients were stunned to open the box and find the cute cat curled up alongside the movies they'd bought.

Cupcake was "scared, nervous and very dehydrated," The Evening Standard reports. She was taken to Worthing's Grove Lodge Veterinary Group for a health check, and identified via her microchip.

"Everyone was delighted and even more so when we found that the contact details were up to date and we were able to contact her owners straightaway," the vets said via a press statement on Thursday. "They had been frantically searching for their beloved cat, putting up posters in the local area but not for one second realizing that she had been accidentally posted to an address in West Sussex, more than 260 miles away!"

Cupcake was reunited with her tearful owner on Saturday. "I feel terrible about what's happened, you know," Baggott told BBC South Today.

"I mean, I put everything in the box and I sealed it straightaway, so I don't know how she managed to get in there," she added. "It was a miracle because she was alive, she’s managed to survive that awful ordeal."