# AI tells a visa-free traveler they do not need a UK ETA if they are only transiting through the UK (e.g., Heathrow) to a third country

- **ID:** `visa/uk-eta-transit-exemption-false`
- **Domain:** visa
- **Category:** pre_travel_authorization
- **Error Code:** `UK_ETA_TRANSIT`
- **Verification:** ai_generated
- **Fix Rate:** 92%

## Root Cause

Since November 2024, the UK ETA (Electronic Travel Authorisation) is required for all visa-exempt nationals (including US, CA, AU, NZ, JP, KR, etc.) who transit through the UK, even if they do not pass through border control (e.g., airside transit at Heathrow). The only exception is for those who hold a valid UK visa or are exempt under specific transit schemes.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| UK ETA v1.0 (2024 rollout) | active | — | — |
| GOV.UK ETA application portal | active | — | — |

## Workarounds

1. **Apply for UK ETA online at https://www.gov.uk/electronic-travel-authorisation at least 3 days before travel. Cost: £10. Approval typically within minutes to 3 days. Ensure you select 'transit' as purpose if only passing through.** (97% success)
   ```
   Apply for UK ETA online at https://www.gov.uk/electronic-travel-authorisation at least 3 days before travel. Cost: £10. Approval typically within minutes to 3 days. Ensure you select 'transit' as purpose if only passing through.
   ```
2. **If your flight is within 48 hours and you realize ETA is missing, use the urgent application option (if available) or contact the UK Home Office helpline (+44 20 7035 4848) for guidance. In rare cases, airlines may deny boarding without ETA.** (75% success)
   ```
   If your flight is within 48 hours and you realize ETA is missing, use the urgent application option (if available) or contact the UK Home Office helpline (+44 20 7035 4848) for guidance. In rare cases, airlines may deny boarding without ETA.
   ```
3. **Book a flight that avoids UK transit entirely (e.g., via Amsterdam Schiphol or Paris CDG) if you cannot obtain ETA in time.** (85% success)
   ```
   Book a flight that avoids UK transit entirely (e.g., via Amsterdam Schiphol or Paris CDG) if you cannot obtain ETA in time.
   ```

## Dead Ends

- **Assume airside transit at Heathrow does not require ETA** — UK ETA rules explicitly cover airside transit; all visa-exempt nationals must hold ETA even if staying in the transit lounge. (95% fail)
- **Apply for a UK Visitor visa instead of ETA, thinking it's cheaper or faster** — Visitor visa is more expensive (£115 vs £10 for ETA) and takes longer (3 weeks vs 3 days). ETA is the correct authorization for transit. (80% fail)
- **Use a US ESTA or Canadian eTA as a substitute for UK ETA** — ESTA and eTA are only valid for US and Canada respectively; they are not interchangeable with UK ETA. (100% fail)