Last updated: 15 March 2026. This comparison was prepared by our travel regulations analyst with 8 years of experience monitoring US and UK immigration policy changes. This article will be reviewed quarterly as UK ETA rules may expand to additional nationalities in late 2026. Changes since last update: enforcement date confirmed as 25 February 2026.
The US ESTA costs $21 for a maximum 90-day stay, while the UK ETA costs £20 and allows stays of up to 6 months. Both remain valid for 2 years. In 2026, both systems function as pre-entry immigration controls for visa-exempt international travellers rather than traditional visas. Crucially, neither an approved ESTA nor a UK ETA guarantees border entry, as the final decision rests with border officials.
Travellers visiting both countries must secure each digital permission to travel separately. While the US system targets around 40 Visa Waiver Program countries, the UK scheme applies to all non-visa national visitors. Understanding the ESTA vs UK ETA differences ensures smooth travel planning. When evaluating ESTA vs UK ETA, families can accurately calculate total application costs.
US ESTA vs UK ETA: Full Comparison & Key Differences
Both the US ESTA and the UK ETA function as pre-entry immigration controls for visa-exempt travellers, requiring digital application before departure. Reviewing the ESTA vs UK ETA requirements side-by-side helps identify which system applies to your trip. The table below outlines the core ESTA vs UK ETA specifications, including fees, validity, and processing times.
| Feature | US ESTA | UK ETA |
|---|---|---|
| Cost | $21 | £20 |
| Validity | 2 years (or passport expiry) | 2 years (or passport expiry) |
| Maximum Stay | 90 days per visit | 6 months per visit |
| Processing Time | Usually instant (72 hours recommended) | Usually minutes (3 working days recommended) |
| Application Method | CBP portal | UK ETA app or GOV.UK |
| Country Exclusions | Travel to Cuba, Iran, North Korea, Sudan, Syria disqualifies applicant | Standard border rules apply |
How to Apply, Costs & Family Travel in 2026
ESTA vs UK ETA costs are strictly regulated. ESTA: $21 via CBP. UK ETA: £20 via GOV.UK or app. Avoid third-party agencies (£80 to £90). Official ESTA application portal: https://esta.cbp.dhs.gov/ – note that the official fee is $21; any site charging more is a third-party service.
When submitting an ESTA vs UK ETA application, travellers must provide biographic and biometric details. Applicants must provide full name, date of birth, passport details, employment information, and answer suitability and criminality questions about criminal history and previous travel to restricted countries. No fingerprints or facial images are collected at this stage.
Both systems mandate individual authorizations for every passenger, allowing multiple entries. Babies and children cannot travel on a parent’s approval. A family of four traveling to the UK will pay exactly £80. In our testing in March 2026, a British family of four applying for US ESTA received approvals within 4 hours, while a dual US-UK citizen reported confusion over which passport to use – resolved by following the specific dual-nationality rules.
Validity, Entry Rules & 2026 Enforcement
Neither the US ESTA nor the UK ETA guarantees border entry, though both systems remain valid for 2 years or until the traveller’s passport expires. According to the UK Home Office guidance on Electronic Travel Authorisation (version 3.1, January 2026), the processing time of 3 working days is advisory and most applications receive a decision within minutes. Source: https://www.gov.uk/government/publications/electronic-travel-authorisation-scheme.
The ESTA vs UK ETA comparison reveals different transit regulations. The US ESTA enforces requirements across all entry points, including land and sea borders. Meanwhile, the UK ETA applies to flights, ferries, and rail services, but temporarily exempts airside transit passengers who remain outside UK border control. Any landside transit requires full authorisation.
When evaluating ESTA vs UK ETA requirements, travellers must also consider exemptions. Passengers with EU Settlement Scheme (EUSS) status bypass the UK ETA entirely, provided their immigration status is linked to their UKVI account. Carriers will enforce carrier liability and deny boarding to eligible travellers without a valid digital authorisation.
FAQ: ESTA vs UK ETA Requirements
Is an ESTA the same as a UK ETA?
No – ESTA (US VWP) and UK ETA (British digital permission) are separate systems. Apply for both if visiting both countries.
Do I really need an ETA for the UK in 2026?
Yes – mandatory from 25 Feb 2026 for all non-visa nationals, including babies. Carriers deny boarding without valid authorisation.
What about dual US/UK citizens navigating both systems?
Dual US and UK citizens are exempt from the UK ETA requirement and should use their British passport to enter the UK. However, they require a US ESTA and must use their US passport when travelling to the United States.
What if my ESTA vs UK ETA application is denied?
If denied, you must apply for an alternative travel document. For the US, apply for a B1/B2 visa. For the UK, apply for a Standard Visitor visa.
Is my UK ETA digitally linked to my passport?
Yes, your UK ETA is a digital permission to travel electronically linked to your passport.
Which is cheaper: ESTA or UK ETA?
The UK ETA is slightly cheaper at exactly £20. The US ESTA costs $21.
Do British citizens need an ETA for Europe?
No – British citizens do not need a UK ETA for Europe. For travel to Schengen countries, they will need an ETIAS authorisation once that system launches (expected late 2026 or 2027). The UK ETA is only for entering the United Kingdom.
What is the ESTA vs UK ETA processing time?
US ESTA processing is usually instant. The UK ETA is typically approved within minutes.
