Yes, your Eurail Pass covers several key rail services in London, but it is not a "blanket" pass for all city transport. In 2026, you can use your Eurail Global Pass on the Elizabeth Line (for travel between Heathrow Airport and Central London) and the London Overground network. Furthermore, Eurail covers major "National Rail" operators departing from London's iconic stations, such as LNER (Kings Cross), GWR (Paddington), and Avanti West Coast (Euston). However, the London Underground (the Tube), DLR, and London Buses are strictly excluded; you must use a contactless card or Oyster for those. Additionally, the Eurostar (connecting London to Paris or Amsterdam) is included but requires a compulsory seat reservation fee, which can range from €30 to €38 in 2026. If you have a Eurail Great Britain Pass, note that it is valid on domestic UK trains but cannot be used for the international Eurostar journey.