The Swiss Federal Railways (SBB) has issued a short-notice alert that no TGV Lyria services will operate between Basel SBB and Paris-Gare-de-Lyon on Saturday and Sunday, 14–15 November 2026. French infrastructure manager SNCF Réseau will carry out track renewal south of Mulhouse, requiring a full blockade of the high-speed line. Around 8 000 passengers are affected. SBB and TGV Lyria are automatically re-booking ticket holders via Geneva or Strasbourg, but journeys will be up to three hours longer and seat availability is limited because of holiday demand. Travellers who choose not to travel can apply for a full refund within 30 days. The closure also disrupts connections for Swiss corporate travellers who normally use the morning Basel–Paris train to reach onward Eurostar services to London or Charles-de-Gaulle Airport. SBB recommends rerouting via Zurich–Geneva and onwards by TGV Lyria, though through-checked luggage is not available on that route. Engineering windows of this kind are expected to increase: SBB’s European timetable-changes portal lists 47 weekends of cross-border works in 2026-27, including further Basel–Paris shutdowns in January and March 2027. Mobility managers are advised to track updates and avoid booking tight same-day appointments in Paris on announced work weekends. Normal Basel–Paris service is scheduled to resume with the first train at 05:21 on Monday, 16 November, but residual delays are possible while rolling stock and crews are repositioned.
Source: SBB timetable-changes portal
