The German national airline believes the customer exploited a loophole known as skiplagging - purchasing a cheaper ticket through a multi-trip fares system with no intention of flying on the last leg.
Lufthansa are believed to be hit harder by the practice than other airlines because numerous company's flights are routed through the hubs of Frankfurt and Munich.
Lufthansa didn't like that.More news: Apple shipments fall by a fifth in China
Lufthansa claims it has been unfairly gamed and is seeking compensation from the man to the tune of $2,385.
While the Berlin district court dismissed the lawsuit initially in December, CNN reported this week that the company has already filed an appeal and plans to pursue it further.
How does the "hidden city" hack work?
If you've ever thought about pulling a fast one on an airline by attempting to book a ticket using "hidden city ticketing" you may want to think again.More news: Cardi B deletes Instagram account hours after winning Grammy Award
"I would simply have someone drive me 80 miles to Dayton, then fly back through Cincinnati to some destination".
Germany's largest airline is suing a penny-pinching passenger - in a first-of-its-kind lawsuit - because he ditched his flight at a layover city to save some cash, according to reports Tuesday. Some say it's unethical because a flyer is taking a seat they're not going to actually use - one that another passenger might need to get somewhere at the last minute. Among the myriad ways to shave down the cost of airfare, some websites recommend traveling exclusively on one-way tickets, which can often be cheaper than round-trip airfare.
Network carriers such as Lufthansa set their prices based on charging less for more flights. There's a reason the New York Times' Ethicist gave his seal of approval to "hidden city' ticketing - when consumers buy something they're under no obligation to use the entire product".More news: Johnson Wins Season-Opening Clash at Daytona