Geneva to Chamonix — the standard gateway
Geneva (GVA) is the nearest major international airport to Chamonix. The drive is 88 km.
| Mode | Time | Cost (approx.) | Notes |
|---|---|---|---|
| Shuttle bus (Ouibus/FlixBus) | 1.5-2 hours | EUR 15-30 | Direct service; book ahead in summer |
| Private transfer | 1-1.5 hours | EUR 120-200 per vehicle | Alps2Alps, Mountain Drop-offs, others |
| Train | 3-4 hours | EUR 30-50 | Geneva Cornavin to Martigny to Vallorcine to Chamonix (change at Martigny or St-Gervais) |
| Rental car | 1-1.5 hours | Varies | Via A40 autoroute. Parking in Chamonix is limited and expensive in summer. |
Source: recency.md; Alps2Alps.
Recommendation: The shuttle bus is the best value for solo trekkers and pairs. Book in advance for summer weekends. For groups of 3-4, a private transfer can work out similarly per-person and door-to-door. The train is scenic but slow with transfers.
Parking warning: If driving, summer parking in central Chamonix is constrained and expensive. Multi-day parking options exist outside the centre, but check ahead if you plan to leave a car for 10+ days while on the TMB.
Milan to Courmayeur — the Italian approach
Courmayeur (Italy) is the Italian starting point for the TMB and a natural approach for trekkers flying into Milan.
| Mode | Time | Cost (approx.) | Notes |
|---|---|---|---|
| Drive via Mont Blanc Tunnel | 2.5-3 hours | Tunnel toll ~EUR 55 one-way | A5 to Courmayeur |
| Bus (Savda/FlixBus) | 3.5-4 hours | EUR 20-35 | Some direct, some via Aosta |
| Train + bus | 4-5 hours | EUR 30-50 | Milano Centrale to Pre-Saint-Didier + bus to Courmayeur |
Source: tunnelmb.net.
Mont Blanc Tunnel
The tunnel is 11.6 km and connects Chamonix (France) to Courmayeur (Italy). Key facts for 2026:
- Toll: ~EUR 55 one-way for a car (increased +1.19% in 2026)
- Night closures: Continue through August 2026 for ongoing reconstruction. Typical schedule: 23:30-04:00.
- Major closure (completed): The tunnel was closed September 1-December 12, 2025 for reconstruction.
- Real-time status: tunnelmb.net
If planning a Chamonix-to-Courmayeur transfer during the TMB, use daytime hours. Night closures are unpredictable — check the schedule the day before.
Paris to Chamonix — the French approach
The train from Paris is practical for trekkers already in France or connecting from Eurostar.
| Mode | Time | Cost (approx.) | Notes |
|---|---|---|---|
| TGV (Paris Gare de Lyon to Annecy or St-Gervais) + TER | 5-7 hours total | EUR 60-120 | TGV to St-Gervais-Le Fayet, then Mont Blanc Express to Chamonix |
| TGV to Annecy + bus | 5-6 hours | EUR 50-100 | TGV to Annecy + shuttle to Chamonix |
| Direct drive | 5.5-6 hours | Tolls ~EUR 50 | Via A6 / A40 |
The TGV + Mont Blanc Express combination is the scenic option: the narrow-gauge Mont Blanc Express climbs through the Arve valley with views of the massif on approach. Book the TGV segment on sncf-connect.com for best prices; the TER/Mont Blanc Express is typically affordable and does not require advance booking.
Intra-TMB transport
The TMB is a circuit, but connections between stages and between Chamonix and the trailhead exist:
| Route | Mode | Notes |
|---|---|---|
| Chamonix to Les Houches (TMB start/finish) | Local bus or Bellevue cable car | Frequent service |
| Courmayeur to trailhead | Local bus to Planpincieux + trail | |
| Champex-Lac to Orsieres | Swiss PostBus | |
| Col de la Forclaz to Martigny | Swiss PostBus | |
| Stages 10-11 shortcuts | Flegere / Brevent cable cars | Useful in bad weather |
These connections enable flexible starts, bail-outs in bad weather, and shortcuts for time-constrained trekkers. See the TMB guide for the cable car shortcuts.
Rescue cost asymmetry: know before you cross
This is the least-discussed logistics point on the TMB and one of the most consequential. Mountain rescue costs diverge dramatically by country.
France — PGHM
Rescue is free at point of delivery. The PGHM (Peloton de Gendarmerie de Haute Montagne) is a state-funded military gendarmerie unit operating 24/7 out of Chamonix. They conduct 1,300+ rescue operations per year in the Mont Blanc massif, 97% helicopter-assisted. The rescue operation itself is not billed to the victim. However, helicopter medical evacuation (SAMU) and hospital transport may generate costs. EU citizens with EHIC cards are partially covered. Non-EU visitors should carry travel insurance with helicopter evacuation coverage. (PGHM Chamonix)
Italy — CNSAS (Valle d'Aosta)
May bill. The Corpo Nazionale Soccorso Alpino e Speleologico is volunteer-based with state support. Valle d'Aosta — the region covering the Italian TMB stages — can bill for helicopter rescue. Non-residents should expect potential costs of EUR 2,000-5,000+ for helicopter extraction. Insurance recommended.
Switzerland — Rega
Will bill. Swiss helicopter rescue is not free. Rega (Swiss Air-Rescue) is a non-profit with 14 helicopter bases across Switzerland and 3.64 million patrons. A 15-minute helicopter flight can cost CHF 3,500-15,000+ for non-patrons.
Rega patron membership: CHF 30/year. This is not health insurance — it is a donation that ensures Rega waives any rescue costs not covered by your existing health or travel insurance. It is the cheapest and most effective rescue insurance in the Alps. Buy it before crossing into Switzerland.
Available at rega.ch. Also available at many tourist offices in Switzerland.
Source: Rega; PGHM Chamonix.
Minimum insurance recommendation
| Coverage | Minimum |
|---|---|
| Helicopter evacuation | EUR 25,000 / CHF 25,000 |
| Medical repatriation | EUR 100,000+ |
| Trip cancellation | To cover refuge pre-payments |
| Search and rescue | Verify if separate from medical evacuation in your policy |
Providers commonly used: Rega patron card (Switzerland), FFCAM/Cartes Neige membership (France), CAI membership (Italy), World Nomads, Global Rescue.
Summary: approach options at a glance
| Approach | Gateway | Cost to Chamonix/Courmayeur | Best for |
|---|---|---|---|
| Geneva (GVA) shuttle | Geneva airport | EUR 15-30 | International trekkers; budget |
| Geneva (GVA) private | Geneva airport | EUR 120-200/vehicle | Groups, families, comfort |
| Milan (MXP) + tunnel | Milan airport | EUR 55 tunnel + EUR 20-35 bus | Italian TMB start; combining with Italian cities |
| Paris TGV + TER | Gare de Lyon | EUR 60-120 | Already in France or EU |
| Zurich + train | Zurich airport | EUR 80-120 | Combining with Swiss cities; Haute Route |
Sources
- tunnelmb.net — Mont Blanc Tunnel closures, tolls
- PGHM Chamonix — Rescue operations, cost model
- Rega Swiss Air-Rescue — Patron membership, rescue costs
- Alps2Alps — Geneva-Chamonix transfer pricing
- recency.md — 2026 tunnel closures, pricing
- La Chamoniarde / OHM — Mountain conditions
- Chamonix Road Conditions — Road status
- SNCF Connect — TGV booking
- Mont Blanc Tunnel — Jan-Apr 2026 closures — Specific closure schedule
- Savda Bus — Milan-Courmayeur bus service