US citizens with a regular passport do not need a visa to visit Dubai or the UAE for stays of up to 30 days. The visa is available upon arrival at UAE airports for US citizens. To enter Dubai, US citizens must have a passport that is valid for at least six months from the expected time of arrival. They should also have a round-trip airline ticket or confirmed ticket to another destination. If a US citizen plans to stay longer than 30 days in Dubai or the UAE, they can request to extend their stay through the nearest immigration office in the UAE.