| Dobrich to Olivenza | 1,835.17 mi (2,953.42 km) |
| Dobrich to Olot | 1,281.88 mi (2,062.98 km) |
| Dobrich to Onate | 1,513.11 mi (2,435.11 km) |
| Dobrich to Onda | 1,462.05 mi (2,352.94 km) |
| Dobrich to Onteniente | 1,506.68 mi (2,424.77 km) |
| Dobrich to Orihuela | 1,543.18 mi (2,483.50 km) |
| Dobrich to Osuna | 1,774.64 mi (2,856.00 km) |
| Dobrich to Ourense | 1,793.31 mi (2,886.05 km) |
| Dobrich to Oviedo | 1,677.30 mi (2,699.35 km) |
| Dobrich to Paiporta | 1,482.22 mi (2,385.40 km) |
| Dobrich to Pajara | 2,536.57 mi (4,082.22 km) |
| Dobrich to Palafolls | 1,277.15 mi (2,055.38 km) |
| Dobrich to Palafrugell | 1,252.39 mi (2,015.53 km) |
| Dobrich to Palamos | 1,255.27 mi (2,020.16 km) |
| Dobrich to Palencia | 1,634.18 mi (2,629.96 km) |
