Yes, you can get free Wi-Fi on all Eurostar trains across all routes, including journeys to and from London, France, Belgium, and the Netherlands. The system works by combining 3G and 4G signals along the track to provide a continuous connection as you speed across borders. While the service is free for all passengers, those traveling in Eurostar Plus or Premier classes often receive a faster connection with a larger data allowance. It is important to note that because the signal relies on external mobile networks, the speed and stability can vary, especially when passing through tunnels or remote areas. In 2026, Eurostar has continued to upgrade its onboard technology, but high-bandwidth activities like 4K video streaming may still be restricted to ensure a fair connection for all passengers. To connect, you simply select the Eurostar network on your device and follow the login prompts on the landing page.