I don't know, perhaps the Karpatian mountains are worth considering. Ostrava? Even Krakow? And in the Pyrenean, Lourdes/Tarbes and Pamplona?
There were rumours of a long-closed airport in the Italian Dolomiti, due to be re-opened; but I can't remember the name, nor can I recall recent news about it. Cortina d'Ampezzo, it may well have been.