| Forest to Olivenza | 1,005.61 mi (1,618.38 km) |
| Forest to Olot | 602.64 mi (969.86 km) |
| Forest to Onate | 624.01 mi (1,004.25 km) |
| Forest to Onda | 781.67 mi (1,257.98 km) |
| Forest to Onteniente | 862.53 mi (1,388.11 km) |
| Forest to Orihuela | 916.42 mi (1,474.83 km) |
| Forest to Osuna | 1,046.64 mi (1,684.40 km) |
| Forest to Ourense | 821.46 mi (1,322.01 km) |
| Forest to Oviedo | 701.65 mi (1,129.20 km) |
| Forest to Paiporta | 819.49 mi (1,318.84 km) |
| Forest to Pajara | 1,824.87 mi (2,936.84 km) |
| Forest to Palafolls | 636.20 mi (1,023.87 km) |
| Forest to Palafrugell | 617.10 mi (993.13 km) |
| Forest to Palamos | 622.18 mi (1,001.30 km) |
| Forest to Palencia | 738.74 mi (1,188.88 km) |
