The tiny serpent was found at the entrance to flight QF21 from Sydney to Narita International Airport, News.com.au reports.
A Qantas spokeswoman confirmed that the snake was around eight inches long, about the size of a ball-point pen.
It was taken to quarantine in order to determine where it came from, the report added.
According to the report, hundreds of passengers had to spend the night in a hotel, while a replacement flight was being organised to Narita.
--ANI (Posted on 23-09-2013)