| Tanque Verde to Olivares | 5,601.57 mi (9,014.85 km) |
| Tanque Verde to Olivenza | 5,509.85 mi (8,867.25 km) |
| Tanque Verde to Olot | 5,776.70 mi (9,296.70 km) |
| Tanque Verde to Onate | 5,542.14 mi (8,919.22 km) |
| Tanque Verde to Onda | 5,757.51 mi (9,265.82 km) |
| Tanque Verde to Onteniente | 5,790.36 mi (9,318.69 km) |
| Tanque Verde to Orihuela | 5,806.26 mi (9,344.27 km) |
| Tanque Verde to Osuna | 5,656.34 mi (9,103.00 km) |
| Tanque Verde to Ourense | 5,339.34 mi (8,592.83 km) |
| Tanque Verde to Oviedo | 5,386.91 mi (8,669.40 km) |
| Tanque Verde to Paiporta | 5,773.24 mi (9,291.13 km) |
| Tanque Verde to Pajara | 5,552.45 mi (8,935.81 km) |
| Tanque Verde to Palafolls | 5,809.35 mi (9,349.24 km) |
| Tanque Verde to Palafrugell | 5,815.12 mi (9,358.53 km) |
| Tanque Verde to Palamos | 5,816.87 mi (9,361.34 km) |
