ESTA, UK ETA, and ETIAS: A Traveler's Guide to All Three

Why three systems exist

Each major destination bloc has built its own pre-travel screening system independently. The United States launched ESTA in 2009 as part of its Visa Waiver Program. The United Kingdom introduced its Electronic Travel Authorisation following Brexit, when EU citizens and others who previously traveled freely began to be subject to formal entry requirements. The European Union has developed ETIAS as part of a broader package of border management reforms that also includes EES. None of these systems is linked to the others, and approval for one does not affect eligibility for another.

The three systems are not interchangeable. Each covers a distinct territory, is administered by a different authority, and sets its own eligibility criteria, fees, and application procedures. A traveler combining all three destinations must deal with each system separately.

What each one does

ESTA — the Electronic System for Travel Authorization — is the US system for nationals of Visa Waiver Program countries. It authorizes travel to the United States for tourism, business, or transit stays of up to 90 days. It is valid for two years and costs $40.27. Applications are submitted through esta.cbp.dhs.gov only.

The UK Electronic Travel Authorisation is required for most visa-exempt nationals visiting or transiting the United Kingdom. It is already operational, costs £20, and is valid for two years with multiple entries. Applications are submitted through gov.uk or the official UK ETA app.

ETIAS — the European Travel Information and Authorisation System — will be required for visa-exempt nationals visiting any of the 30 Schengen-area countries from Q4 2026. It costs €20 and is valid for three years or passport expiry, whichever is earlier. Most decisions are automatic. For a comparison of ETIAS and EES specifically, see ETIAS and EES, explained side by side.

Comparison at a glance

The table above summarizes all three systems side by side. Each has its own processing time, fee structure, validity period, and official application portal. The where-to-apply row lists the only legitimate portals for each system — no other site should be used for any of these applications.

The multi-destination trip scenario

A worked example: an Australian passport holder travels Sydney to London to Paris and back to Sydney. On the outbound routing through London, the UK ETA applies — the traveler must hold a valid UK ETA to board the Sydney–London flight. On the London–Paris leg, ETIAS will apply from Q4 2026 — the traveler must also hold a valid ETIAS before boarding. ESTA does not apply to this routing because the traveler does not enter the United States.

If the same traveler were routing through the United States — for example, Sydney to Los Angeles to London to Paris and back — all three authorizations would be required: ESTA for the US segment, the UK ETA for the London leg, and ETIAS for the Paris leg. Each application is submitted to a different portal, with a different fee, on a different timeline.

Applying for all three

The recommended approach for multi-destination travelers is to confirm nationality requirements for each destination before booking. Not all nationalities need all three authorizations. Citizens of EU member states do not need ETIAS. Some nationalities may require full visas rather than electronic travel authorizations.

Once requirements are confirmed, apply for each authorization through its official portal and allow adequate processing time. Each application is fully independent. A single multi-destination itinerary may require three separate applications, three separate fees, and three separate confirmation records to be in order before travel. None of the three guarantees entry on its own — each is a pre-screening step, and a border officer still makes the final call at each destination; see approved but not guaranteed for what that means in practice.

Ireland is none of the three

The Republic of Ireland is not part of the Schengen area, does not participate in ETIAS, and is not the United Kingdom, so the UK ETA does not apply to it either. Travel to Ireland is governed by its own immigration rules, and entry requirements vary by nationality. A traveler combining the US, UK, Schengen area, and Ireland on one trip is dealing with four distinct sets of requirements, not three. Ireland's specific entry requirements should be checked directly with the Irish Naturalisation and Immigration Service.

Planning a UK-plus-Schengen trip specifically

If your itinerary is UK-plus-Schengen rather than a three-way trip, the practical sequencing — when to apply for each, and what EES adds at the Schengen border — is covered in more depth in traveling to the UK and the EU on the same trip.

About this page

This page provides general information only and is not immigration or legal advice.