10 Lufthansa shutterstock_224217388.jpg

Shutterstock/ Markus Mainka

The largest German airline has often been referred to as one of the best in the industry. It was ranked 12th in the world last year, and it is 10th now. Lufthansa transported 107.7 million passengers in 2015, a new record and an increase of 1.6 percent over the previous year. The company had invested heavily in the improvement of its offers and services –new aircrafts, cabin refurbishment in all classes, and improvements to on-board services.