Travel authorizations are generally valid for two years, or until your passport expires, whichever comes first. A visitor may travel to the U.S. repeatedly within the validity period without having to apply for another ESTA.

No, you do not need a new ESTA (Electronic System for Travel Authorization) for every individual trip to the United States. Once approved, an ESTA is generally valid for two years or until your passport expires, whichever comes first. During this period, you can make multiple trips to the U.S. under the Visa Waiver Program without reapplying, provided each stay is 90 days or less. However, you must apply for a new ESTA if you get a new passport, change your name, change your gender, or if your country of citizenship changes. It is a peer-to-peer recommendation to check your ESTA status on the official CBP website at least 72 hours before any subsequent trip to ensure it hasn't been revoked or expired prematurely due to a passport change.