Hi,
I think it would be a nice addition if we could see the market share of an airline at each of its bases on its main Airline information page.
When I look at an airline, this is a piece of information I like to know, and it can be tiresome to get it if the airline has several bases.
It would give a quick glimpse on how strong this airline is at its bases and enable an easy comparison between bases.
See example below.
(https://framapic.org/ww8ClrbLo1AX/UR2apvpUsnNN.jpg)