Let me make this big misconception clear.
What are fighter planes?
Answer: They are not some magical things which wins war for you, they are merely delivery systems for missiles and bombs. From F 35s, to B 52s to Saudi F 15s and Eurofighter Typhoons, they are merely delivery systems for weapons.
Right? Missiles and bombs? Only advantage of aircrafts are that they are re-usable. They can return to their bases, refuel, and reload with missiles, again go on a mission. This is their only advantage.
Iran has a vast arsenal of ballistic missiles which will serve the same purpose? Delivery of missiles and bombs? In fact, within 10 mins, with their ballistic missiles, Iran can destroy all Saudi oil refineries, airports and seaports, making Saudi air force, army, navy completely crippled. Let alone using your air force, Saudi would literally be begging for mercy that Iran doesn't sieze Saudi's airplanes and oilfields with ground forces, when that happens.
Did Egypt have vast array of ballistic missiles in 1967 and 73? No? Did Iraq have them? No? Iran has them. Also, not like Iran doesn't have air force? They do, they have advanced SAM systems which are very much capable of defending their airspace.
I would never want an war between the two, but a fair comparison must be done. Not threatening to "destroy" each other as many do.