Flying in from abroad? The six things that catch people out, in one place. Full detail, with official links, in our UK visitor essentials guide.
Entry
Most visitors from Europe, the USA, Canada and Australia need a UK ETA (£20, apply in the UK ETA app, valid two years) — airlines have enforced it since 25 February 2026. eGates from age 8 for EU, US, Canadian, Australian and most other visa-free passports. More ›
Money
Pounds sterling; cards and phones are accepted almost everywhere, contactless taps up to £100. Choose to pay in pounds when a terminal offers your home currency. Prices include VAT and there is no tourist tax refund. More ›
Phone
Free Wi-Fi at all London airports; UK SIMs and eSIMs from £10 in every arrivals hall; EU roaming depends on your operator. WhatsApp +44 20 8888 9988 works from any country. More ›
Getting around
Tap in and out with any contactless card or phone on the Tube, buses and the Elizabeth line — no ticket needed, fares capped daily. A fixed-fare car wins for families, groups, late arrivals and days out the train does not reach. More ›
Children & luggage
Child seats on request when you book. In a licensed private hire car children may travel without one if none is available (under-3s on the rear seat). Tell us the bag count and the right size of car turns up. More ›
Emergencies
999 or 112 for police, fire or ambulance; NHS 111 for urgent advice; A&E is free at the point of use, but bring travel insurance. Plugs are Type G, 230 V; traffic drives on the left — look right. More ›