| Buchs to Olivares | 1,041.03 mi (1,675.38 km) |
| Buchs to Olivenza | 1,019.33 mi (1,640.45 km) |
| Buchs to Olot | 485.57 mi (781.46 km) |
| Buchs to Onate | 645.19 mi (1,038.33 km) |
| Buchs to Onda | 695.46 mi (1,119.23 km) |
| Buchs to Onteniente | 767.87 mi (1,235.77 km) |
| Buchs to Orihuela | 819.46 mi (1,318.80 km) |
| Buchs to Osuna | 1,010.33 mi (1,625.97 km) |
| Buchs to Ourense | 911.06 mi (1,466.21 km) |
| Buchs to Oviedo | 788.13 mi (1,268.38 km) |
| Buchs to Paiporta | 728.93 mi (1,173.10 km) |
| Buchs to Pajara | 1,815.67 mi (2,922.04 km) |
| Buchs to Palafolls | 503.73 mi (810.67 km) |
| Buchs to Palafrugell | 477.07 mi (767.77 km) |
| Buchs to Palamos | 482.04 mi (775.77 km) |
