Three unruly Japanese passengers have been blacklisted by China Airlines and may face legal action by the airline.
A CAL flight last week from Taiwan to Bangkok was forced to turn round back to Taoyuan International Airport after alleged drunken antics by the three.
They were accused of trying to smoke on the flight and harassing crew members and other passengers.
The company will ban the men from flying again on CAL and will seek compensation through legal action to cover their costs, CAL president Hsieh Shih-chien said.
He said the airline is calculating the cost of the disruption, including fuel, airport fees and extra staff deployment which will run into several thousand dollars.
The flight was carrying 260 passengers and was just 30 minutes into the journey when the pilot decided to turn the plane around.
The incident caused a four-hour delay to the flight.
