Guiseppe,
this is a feature for the future. We will add many economical parts in the future for the professional career. The Actual state of an airplane will be one part. Also the airports and thus the HUB’s too, will get some new functions. At the moment all airports have opened 24 hours the day. In the future, smaller airports will be closed for some ours, but also some bigger will get a night flight prohibition, like in real. We will add a fuel feature for our airports. The more flights we will have to and from an airport, the more discount you will get at this airport. Because you will have to pay for the jet fuel in the future. Same for the landing fee at an airport, that we also will add.
What does that mean for you, if you are flying in the professional career? OK, you will get some tasks, like flying from A to B, B to C and C to D. For example:
LOWW to EDDH, EDDH to ESSA and ESSA to EFIV. You now have to look to the fuel price at all of this three airports. Why? LOWW (Vienna) is an HUB, we have many flights from and to LOWW, so the fuel price will be more less then in EDDH (Hamburg), because we don’t have so much flights to this airport. So maybe it is a good idea to take some more fuel in LOWW then you need for your flight to Hamburg, so you have enough fuel for the next leg from EDDH to ESSA. Stockholm is a HUB, so the price for the fuel will be less. Assumed your last flight to EFIV (Ivalo, Finland) will have a planed Take Off time from ESSA at 19:20. Flight duration is 1:55 hour, so your planed Landing Time at EFIV will be 21:15. EFIV will close at 21:30. For some unexpected reasons your departure at ESSA was some minutes delayed. Also you expect strange headwinds along your route to EFIV. So it can be a good solution to increase your Cost Index to be faster. In this case you will burn off more fuel, but you will reach EFIV before it will closing it’s doors. Otherwise you have to fly to an alternate, which will be much more expensive, then the extra fuel you are burning for the higher Cost Index.
Summarized your goal must be to fly as much economical as possible, because the more economical you will fly, the more points you will get for your flight!