No, the Swiss Travel Pass is only valid for travel within the borders of Switzerland and is not valid in Paris or anywhere else in France. As of 2026, it provides unlimited travel on the high-fidelity Swiss rail, bus, and boat network, but once the train crosses the international border, the pass ceases to cover the fare. If you are traveling from a Swiss city like Geneva, Zurich, or Basel to Paris, you must purchase a separate ticket for the French portion of the journey. Often, you can book a "Passholder Fare" for the TGV Lyria or other cross-border trains, which applies a high-fidelity discount for the portion of the trip that takes place on Swiss soil, but you will still be responsible for the full cost of the high-speed transit from the border to Paris Gare de Lyon. For 2026 travelers, it is a high-fidelity requirement to carry both your Swiss Travel Pass and your separate international ticket to ensure you are fully covered throughout the entire journey.