The boss of Lufthansa is Carsten Spohr. He expects higher costs for fuel. Fuel is for planes. The reason is the war.
The costs grow a lot. The firm pays much money for fuel. The airline makes the tickets more expensive.
Many people buy expensive tickets. People like good seats. Lufthansa makes much money.
New planes need less fuel. But firms deliver too slow. Lufthansa uses old planes for a long time. These planes need much fuel.