Passengers were horrified by the sight of the reptile which appeared to have slithered onto the plane during boarding. Shocked passengers travelling to Mexico City took footage of the green viper as it dropped down to the seats below.
It has been reported that the flight had priority landing and the snake was dealt with by animal control experts so they could board when it arrived and take the reptile away.
Passengers appear to have jumped out of their seats when they spotted the green creature slithering down the plane.
AeroMexico confirmed the potentially dangerous situation and they are investigating how the snake came to be on the plane.