What are the most popular routes to Treto?
| Santander - Treto | Average priceR 199 | Average duration1h 45m | Daily departures13 | |
| Colindres - Treto | Average priceR 97 | Average duration5m | Daily departures11 | |
| Berria - Treto | Average priceR 95 | Average duration18m | Daily departures9 | |
| Castro Urdiales - Treto | Average priceR 124 | Average duration45m | Daily departures8 | |
| Cerdigo - Treto | Average priceR 139 | Average duration1h 31m | Daily departures8 | |
