| Billdal to Olivares | 1,617.69 mi (2,603.42 km) |
| Billdal to Olivenza | 1,561.40 mi (2,512.83 km) |
| Billdal to Olot | 1,141.62 mi (1,837.27 km) |
| Billdal to Onate | 1,182.71 mi (1,903.38 km) |
| Billdal to Onda | 1,333.44 mi (2,145.97 km) |
| Billdal to Onteniente | 1,413.79 mi (2,275.28 km) |
| Billdal to Orihuela | 1,467.90 mi (2,362.36 km) |
| Billdal to Osuna | 1,605.69 mi (2,584.11 km) |
| Billdal to Ourense | 1,362.17 mi (2,192.20 km) |
| Billdal to Oviedo | 1,247.82 mi (2,008.17 km) |
| Billdal to Paiporta | 1,370.98 mi (2,206.37 km) |
| Billdal to Pajara | 2,379.21 mi (3,828.96 km) |
| Billdal to Palafolls | 1,171.37 mi (1,885.14 km) |
| Billdal to Palafrugell | 1,148.80 mi (1,848.82 km) |
| Billdal to Palamos | 1,154.05 mi (1,857.26 km) |
