Great question - FCO to JAI just means Rome Fiumicino Airport to Jaipur Sanganeer Airport. Now you’ll know what these unique codes when you look for flights! This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Venice Marco Polo Airport (VCE), Naples Airport (NAP), Milan Malpensa Airport (MXP), Catania Fontanarossa Airport (CTA), Bologna Guglielmo Marconi Airport (BLQ).