Correct me if am wrong, but I think the Israeli Air force flew over the Jordanian airspace and Saudi :), Saudi had no clue or a radar covering that area. At that time Iraq was fighting a war on behalf of the GCC countries against Iran.

This wasn't the first time for the Jordanian to open their airspace, An iraqi pilot defected to Israel in his MiG21 so the Americans could understand how does the MiG 21 engine operate :)