| Didymoteicho to Olivenza | 1,776.31 mi (2,858.69 km) |
| Didymoteicho to Olot | 1,234.65 mi (1,986.97 km) |
| Didymoteicho to Onate | 1,477.51 mi (2,377.82 km) |
| Didymoteicho to Onda | 1,400.57 mi (2,253.99 km) |
| Didymoteicho to Onteniente | 1,437.61 mi (2,313.61 km) |
| Didymoteicho to Orihuela | 1,469.74 mi (2,365.33 km) |
| Didymoteicho to Osuna | 1,703.84 mi (2,742.06 km) |
| Didymoteicho to Ourense | 1,758.01 mi (2,829.24 km) |
| Didymoteicho to Oviedo | 1,646.96 mi (2,650.52 km) |
| Didymoteicho to Paiporta | 1,417.09 mi (2,280.59 km) |
| Didymoteicho to Pajara | 2,444.51 mi (3,934.05 km) |
| Didymoteicho to Palafolls | 1,225.09 mi (1,971.60 km) |
| Didymoteicho to Palafrugell | 1,202.05 mi (1,934.52 km) |
| Didymoteicho to Palamos | 1,204.33 mi (1,938.18 km) |
| Didymoteicho to Palencia | 1,593.20 mi (2,564.01 km) |
