Whatever you learn on, DO NOT LEARN ON THE SPITV!
It takes no skill whatsoever, and if you "learn" to fly with no skill you will only ever fly that one plane. You will have about 1/80th the fun that this game can provide, because you are using 1 out of about 80 possible rides.
I know there are lots of easy rides to start with. Try an a6m5. But once you've got the hang of things, try other rides. I'd suggest a 109 a p51/47, and a 190A5/8, just to broaden your horizons.