Three destinations in Occitanie—**Albi**, **Moissac**, and **Carcassonne**—are easily accessible from Toulouse via the TER liO regional train network, with round-trip costs often under twenty euros. Each city offers distinct historical and cultural experiences, making them ideal for travelers seeking affordable and enriching day trips or short stays. The TER liO provides frequent, direct connections, with multiple daily departures, including on Sundays. **Albi**, located in the Tarn department, is just under an hour from Toulouse-Matabiau station by direct TER liO train. Tickets for this route can be as low as 1€ during special promotions, with average one-way prices around 5€ if booked in advance. The city is renowned for its medieval architecture, including the UNESCO-listed **Cathedral of Saint-Cecile**, a Gothic masterpiece constructed between 1282 and the 15th century. Nearby is the **Palais de la Berbie**, home to the **Toulouse-Lautrec Museum**, which houses the world's largest collection of works by Henri de Toulouse-Lautrec, an influential painter from Albi. Visiting in autumn is particularly rewarding, as it offers shorter lines and ideal lighting for photography. **Moissac**, in the Tarn-et-Garonne department, is also about an hour from Toulouse by direct TER liO train, with several Sunday departures. One-way tickets start at 6€. The main attraction is the **Abbey of Saint-Pierre**, whose Roman cloister is a UNESCO World Heritage Site and considered one of the most beautiful in France. The abbey's southern portal features a sculpted tympanum depicting the **Apocalypse**, a striking example of medieval religious art. The area around the **Tarn and Garonne Canal**, which converge in Moissac, is also worth exploring. Local producers offer **chasselas** grapes with AOP (Appellation d'Origine Protégée) status, which can be purchased in early autumn. **Carcassonne**, located in the Aude department, can be reached from Toulouse by direct train in under an hour, with one-way tickets starting at 10€. Regular connections are available on Sundays throughout the day. Autumn is an excellent time to visit the **UNESCO-listed Medieval City**, which retains a village-like atmosphere rather than feeling like a typical tourist destination. The lower town is accessible on foot from the station in twenty minutes, offering a glimpse into the historical layout before entering through the city gates. The **Count's Castle** and its towers require an entrance fee of about 9€ for adults, but the entire day can be spent exploring the castle, walking along the ramparts, and relaxing in the lower town. The liO offers provide budget-friendly travel options, with 1€ tickets available on certain lines during the first and last weeks of each month. The Toulouse-Albi line is often included in these promotions, making a round trip nearly free. Tickets can be purchased through **SNCF Connect** or at liO counters, though they tend to sell out quickly on weekends. These affordable travel options make it easy for visitors to explore the rich cultural and historical heritage of Occitanie without breaking the bank.