Singapore

Singapore map

Region: Southeast Asia

Requirements

Passport Validity
6 months
Stay and Departure
Must have sufficient funds for the length of intended stay, a confirmed onward or return ticket (where applicable), evidence of permission to enter next destination (for example, a visa), and a Yellow Fever Vaccination Certificate, if applicable
Transit
- Holders of confirmed onward tickets are permitted transit without visa in international transit area for up to 24 hours.
- Hotel accommodation is available within the transit area of Singapore Airport (SIN).
- Transit passengers holding 2 separate tickets can check in for the connecting flight in the international transit area, except when arriving/departing on a budget carrier.
Dual Nationality
U.S. policy on dual nationality can be found here.

Additional Notes

  1. Stay is extendable.
  2. Visitors who are eligible for entry will be issued with visit passes which will indicate the period of stay granted, as determined by the immigration officers upon their arrival. Every visitor’s entry is assessed on own merits.
  3. The Singapore page on the website of the Bureau of Consular Affairs, U.S. Department of State implies that the visa-exempt stay is 90 days, but Singapore's Immigration & Checkpoints Authority website does not provide a preset visa-exempt duration of stay, and the Authority confirmed that the period of stay is determined by the immigration officers on arrival.
Sources:

Applicable Passports: