| Bacau to Olivenza | 1,797.25 mi (2,892.39 km) |
| Bacau to Olot | 1,238.49 mi (1,993.15 km) |
| Bacau to Onate | 1,450.00 mi (2,333.55 km) |
| Bacau to Onda | 1,433.43 mi (2,306.88 km) |
| Bacau to Onteniente | 1,487.49 mi (2,393.88 km) |
| Bacau to Orihuela | 1,529.33 mi (2,461.22 km) |
| Bacau to Osuna | 1,753.64 mi (2,822.20 km) |
| Bacau to Ourense | 1,725.63 mi (2,777.13 km) |
| Bacau to Oviedo | 1,605.03 mi (2,583.05 km) |
| Bacau to Paiporta | 1,458.11 mi (2,346.61 km) |
| Bacau to Pajara | 2,538.83 mi (4,085.85 km) |
| Bacau to Palafolls | 1,240.17 mi (1,995.86 km) |
| Bacau to Palafrugell | 1,213.81 mi (1,953.43 km) |
| Bacau to Palamos | 1,217.40 mi (1,959.21 km) |
| Bacau to Palencia | 1,575.85 mi (2,536.09 km) |
