| Ponca City to Noventa Vicentina | 5,238.47 mi (8,430.51 km) |
| Ponca City to Novi di Modena | 5,230.94 mi (8,418.38 km) |
| Ponca City to Novi Ligure | 5,154.34 mi (8,295.11 km) |
| Ponca City to Nuoro | 5,363.32 mi (8,631.44 km) |
| Ponca City to Occhiobello | 5,255.85 mi (8,458.47 km) |
| Ponca City to Oderzo | 5,253.27 mi (8,454.32 km) |
| Ponca City to Oggiono | 5,133.75 mi (8,261.97 km) |
| Ponca City to Olbia | 5,344.65 mi (8,601.38 km) |
| Ponca City to Oleggio | 5,113.64 mi (8,229.61 km) |
| Ponca City to Olgiate Comasco | 5,118.97 mi (8,238.19 km) |
| Ponca City to Olgiate Olona | 5,121.95 mi (8,242.99 km) |
| Ponca City to Omegna | 5,093.43 mi (8,197.08 km) |
| Ponca City to Opera | 5,145.23 mi (8,280.45 km) |
| Ponca City to Oppeano | 5,224.41 mi (8,407.87 km) |
| Ponca City to Orbassano | 5,095.01 mi (8,199.62 km) |
