Yes, you can travel in the UK with an Interrail pass, but the rules differ depending on whether you are a UK resident. If you live outside the UK, you can use an Interrail Global Pass or a Great Britain One Country Pass for unlimited travel on almost all National Rail services, including the scenic routes in Scotland and Wales. However, if you are a UK resident, the Interrail Global Pass is only valid for two journeys in your home country: one "outbound" journey to leave the UK and one "inbound" journey to return at the end of your European trip. You cannot use the pass for general domestic travel within the UK. This is intended to prevent residents from using a discounted tourist pass as a daily commuter ticket. In 2026, the Eurostar from London St Pancras is the most common way for UK residents to use their "outbound" journey, though a seat reservation fee is still required. For 2026 travelers, remember that the pass covers trains but does not include the London Underground (Tube) or city buses, except for the Elizabeth Line and London Overground services.