@chickenwire said in Aircraft Landing After Carrier Destroyed Question:

Welcome to the forum.

For your scenario only this quote is relevant for defending Japan, as the other quotes address the active player (whose turn it currently is):

“A fighter based on a defending carrier must land on the same carrier if possible after the battle. If that carrier is destroyed in combat, it must try to land elsewhere. It must land on a different friendly carrier in the same sea zone, move 1 space to a friendly territory, island, or aircraft carrier, or be destroyed. This movement occurs during the Noncombat Move phase, before the acting player makes any noncombat movements.”

Now the Japanese fighters (on US NCM phase) can move to an at that time friendly territory/island.