What are game players using as basic route marketing?
All depends on what you want some run none at all, cause 100% reputation does enough specially on routes without competition. Personally I run maxed out on my longhaul which comes down to 400K a leg, for shorthaul I tried around 200K, but I have not had a lot of time to play with that one.
I’m currently using 300K per sector (only have long haul at the moment" to pump up my awareness. Once it is high enough the amount you use can drop without having too much effect on the awareness/profitability of the route.
would recomend around 380k and wait a few days and your flights should be full