| North Valley to Olivares | 5,291.50 mi (8,515.85 km) |
| North Valley to Olivenza | 5,199.65 mi (8,368.04 km) |
| North Valley to Olot | 5,467.70 mi (8,799.41 km) |
| North Valley to Onate | 5,232.48 mi (8,420.87 km) |
| North Valley to Onda | 5,447.40 mi (8,766.74 km) |
| North Valley to Onteniente | 5,480.07 mi (8,819.32 km) |
| North Valley to Orihuela | 5,495.91 mi (8,844.81 km) |
| North Valley to Osuna | 5,346.20 mi (8,603.88 km) |
| North Valley to Ourense | 5,029.02 mi (8,093.42 km) |
| North Valley to Oviedo | 5,076.89 mi (8,170.47 km) |
| North Valley to Paiporta | 5,463.03 mi (8,791.90 km) |
| North Valley to Pajara | 5,251.28 mi (8,451.12 km) |
| North Valley to Palafolls | 5,500.21 mi (8,851.73 km) |
| North Valley to Palafrugell | 5,506.17 mi (8,861.33 km) |
| North Valley to Palamos | 5,507.88 mi (8,864.08 km) |
