The UK requires an ETA (£10) for visa-exempt visitors since January 2025. Carry-on liquid rules are in transition — Heathrow T5 has CT scanners, others still 100ml.
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⚠️The 3 things you need to know
UK ETA (£10) required for visa-exempt visitors since January 2025.
Carry-on liquid rules vary by terminal — Heathrow T5 has CT scanners (2L OK), others still 100ml.
Cash declaration: £10,000 cash from outside UK.
Customs from outside UK: no meat, milk or most dairy.
⚠️ Country rules change. This page is a summary of common guidance based on official authorities cited above — always confirm with the destination embassy and your airline before flying, especially for controlled substances, restricted electronics, and biosecurity items.