| Ponca City to Radauti | 5,620.85 mi (9,045.88 km) |
| Ponca City to Ramnicu Sarat | 5,783.05 mi (9,306.92 km) |
| Ponca City to Ramnicu Valcea | 5,708.39 mi (9,186.77 km) |
| Ponca City to Rasnov | 5,719.91 mi (9,205.31 km) |
| Ponca City to Reghin | 5,635.75 mi (9,069.86 km) |
| Ponca City to Resita | 5,614.03 mi (9,034.91 km) |
| Ponca City to Roman | 5,699.28 mi (9,172.10 km) |
| Ponca City to Rosiori de Vede | 5,779.19 mi (9,300.70 km) |
| Ponca City to Rovinari | 5,676.80 mi (9,135.92 km) |
| Ponca City to Roznov | 5,690.83 mi (9,158.51 km) |
| Ponca City to Sabaoani | 5,692.30 mi (9,160.88 km) |
| Ponca City to Sacele | 5,726.76 mi (9,216.33 km) |
| Ponca City to Sacueni | 5,521.09 mi (8,885.33 km) |
| Ponca City to Salcea | 5,644.82 mi (9,084.46 km) |
| Ponca City to Salonta | 5,533.09 mi (8,904.64 km) |
