How can an airline, with 80% pax load, with normal ticket prices and not too expensive marketing expenditure can go bankrupt??? Is there something wrong with this game????
What aircraft this airline used and what routes it flew?
too many variables to give an answer.
probably too many fleet types, not enough a/c to pay fixed costs...
You have four planes, each of different type. This causes very high training, maintenance and administrational costs. =Nothing wrong with the sim.