| Ponca City to Sangeorgiu de Mures | 5,639.14 mi (9,075.32 km) |
| Ponca City to Sangeorz-Bai | 5,605.09 mi (9,020.52 km) |
| Ponca City to Sannicolau Mare | 5,533.12 mi (8,904.69 km) |
| Ponca City to Santana | 5,549.77 mi (8,931.50 km) |
| Ponca City to Satu Mare | 5,526.10 mi (8,893.40 km) |
| Ponca City to Scobinti | 5,676.15 mi (9,134.87 km) |
| Ponca City to Scornicesti | 5,741.07 mi (9,239.36 km) |
| Ponca City to Sebes | 5,638.78 mi (9,074.73 km) |
| Ponca City to Seini | 5,541.09 mi (8,917.52 km) |
| Ponca City to Sfantu-Gheorghe | 5,716.95 mi (9,200.54 km) |
| Ponca City to Sibiu | 5,666.53 mi (9,119.40 km) |
| Ponca City to Sighetu Marmatiei | 5,551.86 mi (8,934.86 km) |
| Ponca City to Sighisoara | 5,666.48 mi (9,119.31 km) |
| Ponca City to Simeria | 5,625.38 mi (9,053.18 km) |
| Ponca City to Sinaia | 5,735.23 mi (9,229.96 km) |
