The itinerary includes 21h15 of transport and 2 steps.

Paris - Bayonne
The step from Paris to Bayonne lasts 9h15. You'll travel in a INTERCITÉS de nuit operated by SNCF Voyageurs.
On board, you'll have access to: Bike, Wi-Fi.

Bayonne - Porto
The step from Bayonne to Porto lasts 12h00. You'll travel in a night bus.
On board, you'll have access to: Wi-Fi.