| Omagh to Sestu | 1,302.04 mi (2,095.43 km) |
| Omagh to Settimo Torinese | 932.64 mi (1,500.94 km) |
| Omagh to Seveso | 950.77 mi (1,530.12 km) |
| Omagh to Sezze | 1,295.72 mi (2,085.26 km) |
| Omagh to Siano | 1,386.48 mi (2,231.32 km) |
| Omagh to Siena | 1,142.51 mi (1,838.69 km) |
| Omagh to Signa | 1,110.65 mi (1,787.41 km) |
| Omagh to Silea | 1,059.06 mi (1,704.38 km) |
| Omagh to Silvi Paese | 1,275.34 mi (2,052.46 km) |
| Omagh to Sinalunga | 1,161.01 mi (1,868.47 km) |
| Omagh to Siniscola | 1,244.03 mi (2,002.07 km) |
| Omagh to Sinnai | 1,304.87 mi (2,099.98 km) |
| Omagh to Siracusa | 1,612.58 mi (2,595.20 km) |
| Omagh to Solaro | 950.42 mi (1,529.55 km) |
| Omagh to Soliera | 1,056.04 mi (1,699.53 km) |
