Update
I have added some airfields to both the italian and the austro-hungarian side. They are in majority italian, but when I'll find also some sources about the austro-hungarians one I'll add them too in the right amount.
The new airfields are of three types, big ones with concrete structers, medium ones with wooden and light structures and bare landing fields with just some canvas tents to cover the planes.
Actually there's also an extra "airfield" in this case is the Airship landing zone. The sources of raf state that there are 3 of them on the italian side; one in Verona and two around Mestre and Venezia. Same as above for the austro-hungarian ones, if I find some sources about them I'll gladly add them.
P.S. If you have any info feel free to share, it will greatly improve the development because the airfields depicted are based on what they might have looked like at that time.
Now pictures time
Airship Landing Zone, this is the biggest of the three, the one near Venezia.
A very basic landing field near the frontlines, the one depicted is an austro-hungarian one.
Airfields improvement. This is the situation as today.