I am playing the game for nearly a month, and as I did not everything right the first times I restarted my airline a couple of times. Two things that I encountered as "improvable".
When starting you need to find your airport. How it is done now is you get the airport list and scan per airport to check who is based their already. When the airport is full and you click "choose another airport" you are directed back to the start screen. Thus you need to select your continent again to get the airport list again. Would it not be better that the list shows the airlines based at the airport right away? Also a "back" function from the aiport info page to the list would save a lot of time.
When opening new routes you can select various things as continent and range which is perfect. But than you get a list that shows the size of the airport, the thing I want to know is not the size (size doesn't matter right) but the amount of pax that want to travel that route.
Like to hear your opinions and feedback, perhaps I missed some tricks?