| Southern Pines to Olivares | 3,973.35 mi (6,394.48 km) |
| Southern Pines to Olivenza | 3,893.28 mi (6,265.62 km) |
| Southern Pines to Olot | 4,270.65 mi (6,872.95 km) |
| Southern Pines to Onate | 4,017.27 mi (6,465.18 km) |
| Southern Pines to Onda | 4,199.41 mi (6,758.30 km) |
| Southern Pines to Onteniente | 4,213.80 mi (6,781.46 km) |
| Southern Pines to Orihuela | 4,217.39 mi (6,787.24 km) |
| Southern Pines to Osuna | 4,031.55 mi (6,488.15 km) |
| Southern Pines to Ourense | 3,771.81 mi (6,070.15 km) |
| Southern Pines to Oviedo | 3,846.89 mi (6,190.97 km) |
| Southern Pines to Paiporta | 4,206.44 mi (6,769.61 km) |
| Southern Pines to Pajara | 3,797.31 mi (6,111.18 km) |
| Southern Pines to Palafolls | 4,297.15 mi (6,915.59 km) |
| Southern Pines to Palafrugell | 4,309.67 mi (6,935.74 km) |
| Southern Pines to Palamos | 4,310.06 mi (6,936.37 km) |
