| Ponca City to Ianca | 5,809.11 mi (9,348.86 km) |
| Ponca City to Iasi | 5,708.04 mi (9,186.20 km) |
| Ponca City to Iernut | 5,636.28 mi (9,070.72 km) |
| Ponca City to Ineu | 5,557.55 mi (8,944.01 km) |
| Ponca City to Jibou | 5,563.62 mi (8,953.77 km) |
| Ponca City to Jilava | 5,804.41 mi (9,341.29 km) |
| Ponca City to Jimbolia | 5,550.42 mi (8,932.53 km) |
| Ponca City to Liesti | 5,786.23 mi (9,312.04 km) |
| Ponca City to Lipova | 5,568.82 mi (8,962.15 km) |
| Ponca City to Liteni | 5,656.54 mi (9,103.32 km) |
| Ponca City to Ludus | 5,630.55 mi (9,061.49 km) |
| Ponca City to Lugoj | 5,595.58 mi (9,005.22 km) |
| Ponca City to Lupeni | 5,657.26 mi (9,104.49 km) |
| Ponca City to Magurele | 5,801.95 mi (9,337.33 km) |
| Ponca City to Mangalia | 5,913.60 mi (9,517.03 km) |
