ABCBA doesn't exist in the game anymore. Used to, but was abused by big players to create phantom hubs, and thus they were ripping everyone else apart.
Don't know what plane you use, but 2 Glasgow-Birmingham per day on a single plane is very, very low use. You really need to maximize your fleet use, to something around 14-15 hrs / day (and more if you use 7-day scheduling).
You can give an eye to Gazzz's tutorials in the general section of the forum, there's one about scheduling.