| Omagh to Columbia (Illinois) | 3,852.07 mi (6,199.31 km) |
| Omagh to Columbia (Maryland) | 3,301.87 mi (5,313.85 km) |
| Omagh to Columbia (Missouri) | 3,906.72 mi (6,287.26 km) |
| Omagh to Columbia (Pennsylvania) | 3,248.60 mi (5,228.11 km) |
| Omagh to Columbia (South Carolina) | 3,712.05 mi (5,973.96 km) |
| Omagh to Columbia (Tennessee) | 3,872.71 mi (6,232.53 km) |
| Omagh to Columbia Heights (Minnesota) | 3,642.86 mi (5,862.61 km) |
| Omagh to Columbine (Colorado) | 4,330.84 mi (6,969.82 km) |
| Omagh to Columbus (Georgia) | 3,945.74 mi (6,350.05 km) |
| Omagh to Columbus (Indiana) | 3,652.36 mi (5,877.91 km) |
| Omagh to Columbus (Mississippi) | 4,032.53 mi (6,489.72 km) |
| Omagh to Columbus (Nebraska) | 3,965.47 mi (6,381.82 km) |
| Omagh to Columbus (Ohio) | 3,502.79 mi (5,637.19 km) |
| Omagh to Commack (New York) | 3,085.33 mi (4,965.37 km) |
| Omagh to Commerce (California) | 5,075.78 mi (8,168.67 km) |
