In 2026, the Eurostar train remains the undisputed "best" way to travel between Paris and London for the vast majority of travelers. Operating from Gare du Nord to St. Pancras International, the journey takes approximately 2 hours and 16 minutes. The primary advantage is the city-center to city-center connection, which bypasses the long, expensive commutes to out-of-town airports like Charles de Gaulle or Heathrow. Furthermore, the Eurostar has much more generous luggage allowances and a more relaxed security process compared to flying. While budget airlines might offer lower "base" fares, once you factor in the cost of airport transfers and baggage fees, the train is often more economical. For 2026, the Eurostar also stands as the more sustainable choice, with significantly lower carbon emissions per passenger than a short-haul flight across the English Channel.