What I have studied is that the best of Israeli strike air crafts can attack maximum up to no more than the central Iran through any path they choose to fly. The positive side is that more than 50% of desired Iranian targetable assets fall within this region. So even if the targets in this region are hit, the nuke building capacity of Iran will be badly crippled for the years to come. And then who knows the future.
However presently one thing is almost certain that US is not going to attack Iran as firstly it is already withdrawing from the Middle East, secondly that its own economy is in the doldrums, thirdly the elections are near and fourthly that after the elections the priorities over Iran may be lost forever.