I'm about level 17 or so on Pocket Planes, and I have been mostly opening class 2 and 3 airports now that I can afford to. I'm noticing that I have a ton of jobs now that I can't fulfill; I only have 11 airplanes. Does it make sense to keep class 1 airports open, if they're just going to generate jobs I can't fulfill? I can make more money with larger airplanes going to/from the larger airports anyway.
Of course, some of them would remain open as waypoints between cities so that the smaller planes can still fly from city to city.
Best Answer
No, it does not make sense to keep those class 1 airports open. The jobs that are allocated are distributed across all the airports you have, so by closing the class 1 airports more of your jobs will be to class 2 and 3 destinations that are easier to combine and make use of your current fleet.
Keeping a couple of class 1 airports open as waypoints is reasonable, but for more efficiently generating income it's best to just have class 3 airports, upgraded to have the most layovers (and jobs) appearing and have them spaced at the range of your class 3 aircraft.