| Omagh to Alum Rock (California) | 4,997.78 mi (8,043.14 km) |
| Omagh to Alvin (Texas) | 4,513.27 mi (7,263.41 km) |
| Omagh to Amarillo (Texas) | 4,448.68 mi (7,159.46 km) |
| Omagh to Amelia (Ohio) | 3,596.23 mi (5,787.58 km) |
| Omagh to American Canyon (California) | 4,964.26 mi (7,989.20 km) |
| Omagh to American Fork (Utah) | 4,513.64 mi (7,264.00 km) |
| Omagh to Americus (Georgia) | 3,942.38 mi (6,344.65 km) |
| Omagh to Ames (Iowa) | 3,802.10 mi (6,118.89 km) |
| Omagh to Amherst (Ohio) | 3,407.15 mi (5,483.28 km) |
| Omagh to Ammon (Idaho) | 4,351.50 mi (7,003.06 km) |
| Omagh to Amsterdam (New York) | 3,026.89 mi (4,871.31 km) |
| Omagh to Anacortes (Washington) | 4,388.53 mi (7,062.66 km) |
| Omagh to Anaheim (California) | 5,075.19 mi (8,167.74 km) |
| Omagh to Anchorage (Alaska) | 4,172.46 mi (6,714.93 km) |
| Omagh to Anderson (California) | 4,834.95 mi (7,781.11 km) |
