Grenoble, Auvergne-Rhone-Alpes to Barcelona, Catalonia from $39: 9 ways by bus, train, flight or car

• On your route from Grenoble to Barcelona, take the A48 and continue on the A7, which you’ll follow for a significant portion of the trip; be mindful to check for traffic updates on the A7, as it often experiences delays, particularly near major junctions.

• Gas stations are frequently found along your route, especially near major exits; currently, expect petrol prices to be around €1.70 per liter, so it’s advisable to fill up in larger towns like Valence or Montélimar where prices may be lower compared to rural areas.

• Upon arrival in Barcelona, be aware of the Low Emission Zone (ZBE) which restricts access for certain vehicles; daily parking rates vary from €20 to €30, so consider booking a parking spot in advance to avoid hefty fines and ensure availability in central areas.

• Onboard services for the train route from Grenoble to Barcelona typically include catering options provided by the train operator. Depending on the operator, you may find a bistro service offering a selection of snacks, sandwiches, and beverages, including local wines. Make sure to check the menu available in advance, as some services may vary by train type.

• For the journey from Grenoble to Barcelona, you can choose from different seating classes. The two main operators on this route are Renfe-SNCF and OUIBUS, providing options like First Class (more spacious seating, complimentary services), and Second Class (which is economical with basic amenities). First Class will offer more comfort and quieter compartments, while Second Class remains a popular choice for its value.

• Upon arriving at Barcelona Sants station, be aware that luggage storage services are available. The station has secure lockers where you can leave your bags if you wish to explore the city without them. Restrooms are also accessible, and there are some shower facilities available in the station's lounges for passengers with access. To get to the city center quickly, take the Renfe train (R2 Nord line) from Barcelona Sants station directly to the city center, or the Metro Line 3 (green line) to get off at Liceu or Catalunya.