What are the most popular routes to Treto?
| Santander - Treto | Average priceR 201 | Average duration1h 45m | Daily departures13 | |
| Colindres - Treto | Average priceR 98 | Average duration5m | Daily departures11 | |
| Berria - Treto | Average priceR 96 | Average duration18m | Daily departures9 | |
| Castro Urdiales - Treto | Average priceR 125 | Average duration45m | Daily departures8 | |
| Cerdigo - Treto | Average priceR 141 | Average duration1h 31m | Daily departures8 | |
