| Omagh to Security-Widefield (Colorado) | 4,362.86 mi (7,021.35 km) |
| Omagh to Sedalia (Missouri) | 3,952.47 mi (6,360.89 km) |
| Omagh to Sedro-Woolley (Washington) | 4,376.56 mi (7,043.39 km) |
| Omagh to Seguin (Texas) | 4,604.48 mi (7,410.20 km) |
| Omagh to Selden (New York) | 3,074.75 mi (4,948.33 km) |
| Omagh to Selma (Alabama) | 4,034.96 mi (6,493.65 km) |
| Omagh to Selma (California) | 4,975.40 mi (8,007.13 km) |
| Omagh to Selma (Texas) | 4,617.71 mi (7,431.49 km) |
| Omagh to Seminole (Florida) | 4,104.35 mi (6,605.31 km) |
| Omagh to Seven Hills (Ohio) | 3,386.86 mi (5,450.63 km) |
| Omagh to Seven Oaks (South Carolina) | 3,721.03 mi (5,988.42 km) |
| Omagh to Severn (Maryland) | 3,298.51 mi (5,308.43 km) |
| Omagh to Severna Park (Maryland) | 3,295.80 mi (5,304.08 km) |
| Omagh to Sevierville (Tennessee) | 3,724.51 mi (5,994.02 km) |
| Omagh to Seymour (Indiana) | 3,664.03 mi (5,896.68 km) |
