Access to Pas de la Casa by road

To go to Pas de La Casa by road...

Access to Pas de la Casa by road

Access to Pas de la Casa from France

Only one road accesses Pas de la Casa

When travelling from France, the usual way of accessing Pas de la Casa and Andorra is by road. The only one is the N20. You can’t miss it, it is well indicated from Foix. The 30 km climb up to Andorra and Pas de la Casa starts at the town of Ax-les-Thermes.

Ax-les-Thermes - Andorra

Driving normally and with regular traffic it takes about 40 minutes to reach Pas de la Casa from Ax-les-Thermes. With snow and heavy traffic (weekends and holiday arrivals) the climb can be quite long, slowed down both by the weather and by customs controls.


Rest assured though, with 8 million tourists coming into Andorra every year, the French and Andorran Customs agents are used to all conditions and quick to facilitate the access to Pas de la Casa. The number of customs agents and the number of lanes at the customs are adapted to the density of the traffic.

Car equipment

Be careful because to reach Pas de la Casa, snow tires or snow equipment are necessary in case of heavy snowfalls (snow chains / snow socks), a simple 4 Wheel Drive is not enough ... There are areas to put chains on near Ax-les-Thermes. The French police will not hesitate to stop non-equipped vehicles from venturing further so as not to slow down the traffic up to Pas de la Casa. Remember to bring along a few bottles of water, food and even blankets in case the climb is prolonged, particularly if you are with children.

... and from Spain

You can reach Andorra from Spain via the town of La Seu d’Urgell, which leads you directly to Andorra la Vella. For the French this road is much longer and makes you access Pas de la Casa from the opposite side! Then once in the capital, you still have to count at least an hour to reach the resort, a little more during holidays and heavy traffic. The advantage of this route is that it is less prone to snowfalls and is an easier access to Pas de la Casa if the weather conditions are harsh.

Road conditions and traffic reports

However, we recommend you inquire about road conditions and traffic reports before leaving:

  • via the Andorran Government website in Catalan
  • via the Inforoute website
  • by phone: (+33) 468 381 205
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