| Wittmund to Olivenza | 1,245.96 mi (2,005.18 km) |
| Wittmund to Olot | 823.90 mi (1,325.94 km) |
| Wittmund to Onate | 864.22 mi (1,390.82 km) |
| Wittmund to Onda | 1,013.12 mi (1,630.46 km) |
| Wittmund to Onteniente | 1,093.61 mi (1,759.99 km) |
| Wittmund to Orihuela | 1,147.70 mi (1,847.05 km) |
| Wittmund to Osuna | 1,285.93 mi (2,069.50 km) |
| Wittmund to Ourense | 1,057.02 mi (1,701.11 km) |
| Wittmund to Oviedo | 939.03 mi (1,511.22 km) |
| Wittmund to Paiporta | 1,050.72 mi (1,690.98 km) |
| Wittmund to Pajara | 2,065.09 mi (3,323.45 km) |
| Wittmund to Palafolls | 854.77 mi (1,375.62 km) |
| Wittmund to Palafrugell | 833.09 mi (1,340.73 km) |
| Wittmund to Palamos | 838.31 mi (1,349.13 km) |
| Wittmund to Palencia | 979.08 mi (1,575.67 km) |
