I have seen you have competitors in all your routes. If they have been flying the route longer than your airline, it will take time for you to get market share and increase your revenues, especially if your image is 12 out of 100. That means the market (passengers) don't know much about your airline and its routes, so how can you expect your aircraft to fill up? The passengers will choose to fly the other more popular airlines on the same routes. This game takes time, like in real life, you cannot expet to get quick results. I am sure there are plenty of routes from Rotterdam where there is no competition yet. Analyze this better for future aircraft (I wouldn't change the routes immediately because you have paid for slots and you just need to be patient). I have also noticed that your aircraft fly an average of 10 hours per day, which is low, you could actually fly some more routes with each aircraft and get more revenue out of them.