Did you read the tutorial and FAQ and all that stuff? Your planes are operating only ONE route a day. Please check the following contributions, first:
http://en.airlinesim.aero/wiki/index.php/Tutorial/1.5/First_Steps/Take-Off
Especially the part called "[size="2"]Filling the schedule and maintenance ratio" explains a lot of your situation.
Before you start asking all these questions, we’d be grateful if you read and understood the tutorial first. It’s written quite well!
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