| Targu Secuiesc to Olivenza | 1,756.80 mi (2,827.29 km) |
| Targu Secuiesc to Olot | 1,198.20 mi (1,928.31 km) |
| Targu Secuiesc to Onate | 1,414.02 mi (2,275.64 km) |
| Targu Secuiesc to Onda | 1,390.89 mi (2,238.41 km) |
| Targu Secuiesc to Onteniente | 1,443.48 mi (2,323.06 km) |
| Targu Secuiesc to Orihuela | 1,484.55 mi (2,389.15 km) |
| Targu Secuiesc to Osuna | 1,710.24 mi (2,752.37 km) |
| Targu Secuiesc to Ourense | 1,691.01 mi (2,721.42 km) |
| Targu Secuiesc to Oviedo | 1,571.27 mi (2,528.71 km) |
| Targu Secuiesc to Paiporta | 1,414.86 mi (2,276.99 km) |
| Targu Secuiesc to Pajara | 2,492.50 mi (4,011.29 km) |
| Targu Secuiesc to Palafolls | 1,198.72 mi (1,929.15 km) |
| Targu Secuiesc to Palafrugell | 1,172.59 mi (1,887.10 km) |
| Targu Secuiesc to Palamos | 1,176.06 mi (1,892.69 km) |
| Targu Secuiesc to Palencia | 1,539.06 mi (2,476.88 km) |
