This is the moment an overweight tourist was dragged out of a plane after he allegedly demanded an emergency aisle seat for his bigger frame.

The unnamed passenger - seen in video wearing an orange Garfield shirt - reportedly complained there was not enough room in his window seat on the Thai Lion Air flight from Bangkok on Wednesday.

He requested to be transferred to the emergency exit seat, which had more leg room, but allegedly threw a tantrum when flight attendants refused to grant his request.

The man's outburst was said to have delayed the flight by around an hour before police arrived to drag him off the Boeing 737 aircraft.

Footage shows officers yanking the stubborn passenger off his seat. He then lay down and blocked the aisle in protest.