There is this really great game for SNES called Aerobiz Supersonic. You have to start and maintain your airline. You buy planes, pick the routes, the fares, and get to make hubs. You are against 3 other competitors in the game. I personally love the game, and you should try it. Has anyone played itor owns it???
Aerobiz and Aerobiz Supersonic are games that were released on SNES and Genesis. (Ahhh, the good old days...it's been 10 years) You can still get those games through used games stores or play them on your PC with appropriate emulator and ROM. Just realize that possession of a ROM is not illegal as long as you own the game on cartridge. There are lots of sites that deal with SNES ROMS and Emulators.