With an approved UK ETA, US citizens can stay in United Kingdom for up to 180 days. This is the shared Schengen limit: 90 days within any 180-day period, counted across all Schengen countries combined — not per country. Time spent elsewhere in Schengen reduces your United Kingdom allowance.
| Maximum tourist stay | 180 days (in any 180-day period, Schengen-wide) |
| Visa situation | Electronic travel authorization required |
| Before you fly | UK ETA |
| Passport validity required | 6 months beyond your stay |
The UK is not part of the Schengen area. US citizens don't need a visa for short visits, but need a UK Electronic Travel Authorisation (ETA), obtained online before departure.
Check your specific case + free PDF report →The 90/180 rule is rolling, not calendar-based: every day you are in the Schengen area during the previous 180 days counts against your limit. For a stay in United Kingdom beyond 90 days you would need a national long-stay visa (work, study, family or — in several EU countries — a digital nomad visa), applied for at a consulate before travel. Border-hopping to a neighbouring Schengen country does not reset the clock.
One detail that catches travelers out: United Kingdom expects your passport to remain valid for 6 months beyond your planned stay. Airlines enforce this at check-in, so a passport expiring soon can end a trip before it starts — check yours before booking.
Overstaying in United Kingdom — even by a few days — can mean fines, being flagged in the immigration system, and trouble on future entries. Some countries also bar re-entry for a period proportional to the overstay. The safe play is simple: count your days from the entry stamp (not your booking dates), set a reminder a week before your limit, and if plans change, deal with immigration before the deadline rather than after.
No — for Schengen countries the 90/180 rule keeps counting across borders, so a quick exit does not reset anything.
Yes — UK ETA. Arrange it before departure; airlines check at the gate.
Working for a foreign employer while visiting is a legal grey zone in most countries. For anything beyond answering emails on vacation, check the digital nomad visa options for United Kingdom — many destinations now have a dedicated permit for exactly this.