| Ponca City to Olivares | 4,789.65 mi (7,708.19 km) |
| Ponca City to Olivenza | 4,700.46 mi (7,564.65 km) |
| Ponca City to Olot | 5,000.11 mi (8,046.89 km) |
| Ponca City to Onate | 4,758.18 mi (7,657.55 km) |
| Ponca City to Onda | 4,965.31 mi (7,990.90 km) |
| Ponca City to Onteniente | 4,993.10 mi (8,035.62 km) |
| Ponca City to Orihuela | 5,005.66 mi (8,055.83 km) |
| Ponca City to Osuna | 4,845.51 mi (7,798.10 km) |
| Ponca City to Ourense | 4,541.93 mi (7,309.53 km) |
| Ponca City to Oviedo | 4,597.47 mi (7,398.91 km) |
| Ponca City to Paiporta | 4,978.65 mi (8,012.36 km) |
| Ponca City to Pajara | 4,716.70 mi (7,590.80 km) |
| Ponca City to Palafolls | 5,031.11 mi (8,096.80 km) |
| Ponca City to Palafrugell | 5,039.00 mi (8,109.48 km) |
| Ponca City to Palamos | 5,040.34 mi (8,111.64 km) |
