Wifi on European trains In Europe, all major train operators offer wifi onboard especially on long-distance routes. On Eurostar, Renfe in Spain, TGV in France and Deutsche Bahn in Germany, wifi can be found on the vast majority of trains.

In 2026, free Wi-Fi is available on most high-speed and long-distance European trains, but it is not yet a universal standard for local or regional "commuter" lines. Large operators like SNCF (France), DB (Germany), and Trenitalia (Italy) provide complimentary Wi-Fi on their flagship fleets (TGV, ICE, and Frecciarossa). In 2026, Sweden and Switzerland are the leaders in connectivity; Swiss trains (SBB) often use "FreeSurf" technology which leverages the public 5G network to give you high-speed data without a login. However, on regional trains in the UK, Spain, or Eastern Europe, Wi-Fi can be spotty or non-existent. A major 2026 trend is the shift away from "onboard Wi-Fi routers" toward 5G-permeable windows, which allow your phone's own signal to penetrate the train's metal hull more easily. Travelers should be aware that "free" train Wi-Fi often comes with data caps or "throttling" after 500MB, so it is best for emails and browsing rather than streaming high-definition video while crossing the Alps or the Spanish plains.