All EU citizens visiting the UK now need an Electronic Travel Authorisation. Costs 20 pounds, valid for 2 years, allows multiple visits up to 6 months each. Apply via the UK ETA app or gov.uk/eta. Does NOT apply if you have settled or pre-settled status.
Apply for an ETA at gov.uk/eta or download the UK ETA app. If you have settled or pre-settled status, you do NOT need an ETA.