Yes, Eurostar provides free Wi-Fi on all of its trains across all routes, including those traveling to and from London, Paris, Brussels, Amsterdam, and Cologne. To access the internet, passengers simply connect to the "EurostarTrainWiFi" network and register through their browser. While the service is complimentary for all travel classes, the connection speed can vary depending on the train's location, particularly when passing through tunnels or moving through remote rural areas. For those traveling in "Eurostar Plus" or "Premier" (formerly Business Premier) classes, the connection is often prioritized with a larger data allowance for professional use. Additionally, the Eurostar Wi-Fi portal usually offers an onboard entertainment system where you can stream movies, documentaries, and news directly to your own device without using up your personal data roaming, which is a great perk for the 2-to-3-hour journey under the English Channel.