| Oulu to Settimo Torinese | 1,529.50 mi (2,461.49 km) |
| Oulu to Seveso | 1,474.07 mi (2,372.29 km) |
| Oulu to Sezze | 1,696.47 mi (2,730.20 km) |
| Oulu to Siano | 1,726.50 mi (2,778.54 km) |
| Oulu to Siena | 1,595.80 mi (2,568.18 km) |
| Oulu to Signa | 1,567.93 mi (2,523.35 km) |
| Oulu to Silea | 1,427.52 mi (2,297.38 km) |
| Oulu to Silvi Paese | 1,614.06 mi (2,597.58 km) |
| Oulu to Sinalunga | 1,597.33 mi (2,570.66 km) |
| Oulu to Siniscola | 1,800.78 mi (2,898.08 km) |
| Oulu to Sinnai | 1,892.42 mi (3,045.55 km) |
| Oulu to Siracusa | 1,975.20 mi (3,178.78 km) |
| Oulu to Solaro | 1,476.77 mi (2,376.63 km) |
| Oulu to Soliera | 1,507.00 mi (2,425.28 km) |
| Oulu to Solofra | 1,722.90 mi (2,772.74 km) |
