| Sussex to Olivares | 4,166.75 mi (6,705.73 km) |
| Sussex to Olivenza | 4,075.44 mi (6,558.78 km) |
| Sussex to Olot | 4,359.98 mi (7,016.71 km) |
| Sussex to Onate | 4,119.98 mi (6,630.46 km) |
| Sussex to Onda | 4,330.31 mi (6,968.95 km) |
| Sussex to Onteniente | 4,360.47 mi (7,017.50 km) |
| Sussex to Orihuela | 4,374.84 mi (7,040.62 km) |
| Sussex to Osuna | 4,221.69 mi (6,794.15 km) |
| Sussex to Ourense | 3,909.13 mi (6,291.13 km) |
| Sussex to Oviedo | 3,961.11 mi (6,374.79 km) |
| Sussex to Paiporta | 4,344.71 mi (6,992.14 km) |
| Sussex to Pajara | 4,143.92 mi (6,669.00 km) |
| Sussex to Palafolls | 4,391.42 mi (7,067.31 km) |
| Sussex to Palafrugell | 4,398.78 mi (7,079.15 km) |
| Sussex to Palamos | 4,400.22 mi (7,081.47 km) |
