| Omagh to Santarem | 1,062.99 mi (1,710.72 km) |
| Omagh to Santiago do Cacem | 1,147.02 mi (1,845.95 km) |
| Omagh to Santo Andre | 1,144.86 mi (1,842.48 km) |
| Omagh to Santo Tirso | 917.53 mi (1,476.62 km) |
| Omagh to Sao Bras de Alportel | 1,205.31 mi (1,939.77 km) |
| Omagh to Sao Felix da Marinha | 938.62 mi (1,510.57 km) |
| Omagh to Sao Joao da Madeira | 947.68 mi (1,525.15 km) |
| Omagh to Sao Joao de Ver | 943.93 mi (1,519.12 km) |
| Omagh to Sao Mamede de Infesta | 927.11 mi (1,492.03 km) |
| Omagh to Sao Pedro do Sul | 956.92 mi (1,540.01 km) |
| Omagh to Satao | 957.62 mi (1,541.14 km) |
| Omagh to Seia | 979.10 mi (1,575.71 km) |
| Omagh to Senhora da Hora | 928.23 mi (1,493.83 km) |
| Omagh to Serpa | 1,150.17 mi (1,851.02 km) |
| Omagh to Serta | 1,022.58 mi (1,645.68 km) |
