| Gaziantep to Olivares | 2,372.66 mi (3,818.42 km) |
| Gaziantep to Olivenza | 2,404.52 mi (3,869.70 km) |
| Gaziantep to Olot | 1,876.68 mi (3,020.23 km) |
| Gaziantep to Onate | 2,124.32 mi (3,418.76 km) |
| Gaziantep to Onda | 2,029.85 mi (3,266.73 km) |
| Gaziantep to Onteniente | 2,058.50 mi (3,312.83 km) |
| Gaziantep to Orihuela | 2,084.96 mi (3,355.41 km) |
| Gaziantep to Osuna | 2,319.29 mi (3,732.53 km) |
| Gaziantep to Ourense | 2,403.88 mi (3,868.68 km) |
| Gaziantep to Oviedo | 2,295.42 mi (3,694.12 km) |
| Gaziantep to Paiporta | 2,042.55 mi (3,287.16 km) |
| Gaziantep to Pajara | 3,015.96 mi (4,853.72 km) |
| Gaziantep to Palafolls | 1,864.05 mi (2,999.89 km) |
| Gaziantep to Palafrugell | 1,842.40 mi (2,965.06 km) |
| Gaziantep to Palamos | 1,844.25 mi (2,968.03 km) |
