| Natchitoches to Olivares | 4,779.44 mi (7,691.76 km) |
| Natchitoches to Olivenza | 4,696.29 mi (7,557.95 km) |
| Natchitoches to Olot | 5,046.14 mi (8,120.97 km) |
| Natchitoches to Onate | 4,796.41 mi (7,719.07 km) |
| Natchitoches to Onda | 4,989.03 mi (8,029.07 km) |
| Natchitoches to Onteniente | 5,008.36 mi (8,060.18 km) |
| Natchitoches to Orihuela | 5,015.11 mi (8,071.03 km) |
| Natchitoches to Osuna | 4,837.09 mi (7,784.54 km) |
| Natchitoches to Ourense | 4,561.42 mi (7,340.89 km) |
| Natchitoches to Oviedo | 4,629.21 mi (7,449.99 km) |
| Natchitoches to Paiporta | 4,998.42 mi (8,044.18 km) |
| Natchitoches to Pajara | 4,621.21 mi (7,437.11 km) |
| Natchitoches to Palafolls | 5,074.60 mi (8,166.79 km) |
| Natchitoches to Palafrugell | 5,085.26 mi (8,183.94 km) |
| Natchitoches to Palamos | 5,086.05 mi (8,185.21 km) |
