Road conditions and information on the Mont Blanc Tunnel
- Please note: during the summer season, access to the tunnel is very busy. Check the traffic forecasts on the official Mont-Blanc Tunnel website to plan your journey!
- Please note: total closure of the Mont Blanc Tunnel for works from 5pm on September 1, 2025 to 5pm on Friday December 12, 2025.
- From November 1, 2025 to March 31, 2026, light vehicles, commercial vehicles and motorhomes must :
- either be fitted with metal or textile snow chains in the luggage compartment, enabling at least two drive wheels to be fitted;
- be fitted with four winter tires.
Traffic information for roads in the Chamonix Valley and Mont Blanc tunnel.
1
R.N.205 : Fayet - Chamonix
Normal traffic
2
RD.1506 : Chamonix - Argentière
Normal traffic
3
RD.1506 : Argentière - Vallorcine et Suisse (Col des Montets - 1461m)
Normal traffic
4
Route Argentière - Montroc et Le Tour
Normal traffic
Last updated on 18/09/2025 - 08:35
Special news
Following the rockfall that occurred on August 20th on the RN 205 at the Egratz descent between Servoz and Le Fayet, traffic is moving in both directions on the viaduct until further notice.
Tunnel du Mont-Blanc : The Mont-Blanc tunnel is closed for work until Friday, December 12, 2025 at 5 p.m. - -
Mont Blanc Tunnel Tariff
Telephone: +33(0)4 50 55 55 00 - +33(0)4 50 53 00 24 (Tourist Office)
Calendars of traffic forecasts and scheduled interruptions (work)
Mont Blanc Tunnel
(2025 prices, French side)
Class | Type of vehicle | One-way | Return trip (1) | 10-ride pass (2) | 20-ride pass (2) |
|---|---|---|---|---|---|
5 | Motorcycles, motorcycles with sidecar, motorcycles with trailer | 36,30 € | 45,60 € | 113,90 € | 159,50 € |
1 | Car, van and small van | 54,80 € | 68,40 € | 171,10 € | 239,50 € |
2 | Car with trailer, van and camper van | 72,60 € | 91,20 € | 228,00 € | 319,20 € |
(1) For classes 1, 2 and 5, the return is valid 7 days after ticket purchase.
(2) Pass validity: 24 months.
