I get frustrated as a single player trying to enter markets only to find that alliance members have monopolized the route with as many as twenty flights a day. How about a challenge with NO alliances. Every man (or woman) for themselves. Equalize the playing field. Some AirSim members have been here for years and know all the ins and outs while newer players, while having fun, are getting stomped on.
I'm a new player, and I'm doing very well. I've played other airline simulators, however, I've only played AWS for abt two IRL months, and I managed to get 5th place in score IN GW3, and 2-7th in profit, it fluctuates, even although I started about one year late.
I also reached that stage with no alliance until very recently, and alliances are honestly not so beneficial other than the forum/discord.
From what I can tell the only skill in starting a large airline is picking a large, base, keeping a large airline big tho I have no idea yet since of course, I've never played more than a few years in one world. The rest is actually quite similar to what you think would logically work, based on the way real airlines work, with three major exceptions, no more than three fleets no matter what, pricing does not effect LF nearly as much as in IRL, and transfers are not modeled. The rest is very similar to the real world. The more u spend on marketing, the more image/attractive your company gets. Plane data is very accurate. Ect, ect.
I don't think alliances would fix the monopolized route problem you are talking about, I think transfers/city based demand would. For example KALT is only an enormous base IRL since delta is based there, and its an excellent location being very close to the center of the USA in term of population. If you averaged the location of every US person it would not be far from atlanta. If AWS added transfers we could in theory, with smart planning create superhubs in other cities with suitable locations, rather than just the current ones, and ir would make scheduling harder. For example, if a passenger wanted to get from a small us town to say somewhere in maine to lax they may have to fly way of course to KATL, then fly to lax. If passenger transfers were modeled well in this game, that same passenger would rather say fly from Maine to Denver to LAX, in a more direct flight. However, you would have to smart because the takeoff time and landing would have to create a short layover at denver otherwise it wouls still not be preferred. That way routes wouldn't be "monopolized" as there would always be alternative ways for Pax to fly.