- Transit without visa with a confirmed onward ticket for a flight to a third country within 24 hours (96 hours if arriving and departing on Yemenia Yemen Airways). Must stay in the international transit area of the airport and have documents required for the next destination.
U.S. policy on dual nationality can be found
According to Timaticweb, visa-exemption and visa-on-arrival is not available to USA passports, so visa-pre-arrival is required. But Yemen Embassy simply states:"The Embassy in Washington DC is not issuing any tourist visa at this time".