I have created logos for my airline but I cannot figure out how to make my icon appear next to my carrier's name which is seen whe selecting routes. I would appreciate a little help and thanks in advance.
The small icon you see next to some airline's routes is actually the icon of the alliance that airline is a part of.
You can add your logo and livery just go to the settings->airline settings page and click add logo/livery. It won't appear near your routes, but on the airlines list.