Guam — Entry Requirements

ESTA (Visa Waiver Program) or Guam-CNMI ETA British passport

Cost Small application fee (paid in USD online) Free (ESTA/ETA application fee applies, paid online)

Processing time Apply online in advance; approval is typically issued within minutes to 72 hours

How long you can stay Up to 45 days via the Guam-CNMI ETA, or up to 90 days via a standard ESTA

Last checked 2026-10-18We scan official government sources daily to keep this as up to date as possible

Passport validity: Must be valid for the duration of your stay
Proof of onward travel: Yes — a return or onward ticket is required
Proof of accommodation: May be requested at the border
Proof of funds: May be requested at the discretion of the immigration officer

Health requirements: No routine vaccination requirement for UK travellers
Vaccinations: Guam vaccine recommendations (TravelHealthPro) ↗ NHS travel vaccination guidance ↗

Notes: The UK is one of 12 nationalities eligible for the Guam-CNMI Visa Waiver Program (45 days) if arriving directly; you can also use a standard US ESTA (90 days), which is required if you're connecting via the mainland US. As of November 2024, CBP verifies an approved electronic travel authorisation before boarding either way.

Sources (1 official government page)

The information on this page is drawn from the following official government pages:

Government travel requirements can change. Always verify on the official site before travelling.