| Oulu to Siegburg | 1,179.56 mi (1,898.32 km) |
| Oulu to Siegen | 1,158.72 mi (1,864.77 km) |
| Oulu to Sigmaringen | 1,314.29 mi (2,115.14 km) |
| Oulu to Simbach am Inn | 1,244.83 mi (2,003.36 km) |
| Oulu to Simmerath | 1,210.00 mi (1,947.30 km) |
| Oulu to Sindelfingen | 1,277.69 mi (2,056.25 km) |
| Oulu to Sinsheim | 1,245.53 mi (2,004.48 km) |
| Oulu to Sinzheim | 1,289.27 mi (2,074.87 km) |
| Oulu to Sinzig | 1,194.45 mi (1,922.28 km) |
| Oulu to Soest | 1,114.40 mi (1,793.46 km) |
| Oulu to Solingen | 1,159.50 mi (1,866.04 km) |
| Oulu to Soltau | 994.33 mi (1,600.23 km) |
| Oulu to Sommerda | 1,085.45 mi (1,746.86 km) |
| Oulu to Sondershausen | 1,076.65 mi (1,732.71 km) |
| Oulu to Sonneberg | 1,136.56 mi (1,829.12 km) |
