- Transit without visa with a confirmed onward ticket for a flight to a third country within 24 hours. 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
Under the Visa Exemption subsection for Libya, Timaticweb lists: "Nationals of the USA including their family members even if of another nationality. They must travel together and hold a letter from an established company in Libya sponsoring their visit. If family members travel individually, the letter should also confirm that prior arrangements were made with the Libyan Immigration Department to secure entry into Libya." These seem like requirements that could be met via the services of a local tour agency. The TripAdvisor post contains links to websites of Libya tour agencies.