Yes, the United Kingdom remains a full participant in the Interrail and Eurail programs in 2026. Despite the political changes following Brexit, the UK's involvement in these rail schemes is managed through the International Union of Railways (UIC) rather than the European Union, so travel rights were unaffected. Travelers from outside the UK can continue to use their Interrail Global or One Country Passes on the National Rail network across England, Scotland, and Wales. Conversely, UK residents can still purchase Interrail passes to explore the rest of Europe. While the specific retailer website myinterrail.co.uk ceased selling new passes in February 2026, this was merely a change in the sales platform; passes are now purchased directly through the official Interrail.eu website or other authorized global retailers. The Rail Planner app remains the primary tool for UK travelers to map out their continental journeys.