| Omagh to Archdale (North Carolina) | 3,582.31 mi (5,765.18 km) |
| Omagh to Arden-Arcade (California) | 4,913.71 mi (7,907.85 km) |
| Omagh to Ardmore (Oklahoma) | 4,328.68 mi (6,966.34 km) |
| Omagh to Ardmore (Pennsylvania) | 3,202.99 mi (5,154.71 km) |
| Omagh to Arecibo (Puerto Rico) | 3,972.80 mi (6,393.60 km) |
| Omagh to Arkadelphia (Arkansas) | 4,179.77 mi (6,726.69 km) |
| Omagh to Arkansas City (Kansas) | 4,175.93 mi (6,720.52 km) |
| Omagh to Arlington (Tennessee) | 3,991.84 mi (6,424.24 km) |
| Omagh to Arlington (Texas) | 4,407.24 mi (7,092.77 km) |
| Omagh to Arlington (Virginia) | 3,326.53 mi (5,353.54 km) |
| Omagh to Arlington (Washington) | 4,393.26 mi (7,070.27 km) |
| Omagh to Arlington Heights (Illinois) | 3,591.63 mi (5,780.17 km) |
| Omagh to Arnold (Maryland) | 3,295.04 mi (5,302.85 km) |
| Omagh to Arnold (Missouri) | 3,859.42 mi (6,211.13 km) |
| Omagh to Arroyo Grande (California) | 5,088.69 mi (8,189.46 km) |
