Do Singaporeans need a visa to enter Alaska?

Singaporean citizens do not need a visa to enter the United States for tourism or business purposes for stays of up to 90 days under the Visa Waiver Program (VWP). However, they must have a valid Electronic System for Travel Authorization (ESTA) prior to travel. Passengers with a B1 or B2 visa issued prior to April 1, 2016 are exempt from ESTA.