| Tall Abyad to Olympia Heights (Florida) | 6,591.37 mi (10,607.78 km) |
| Tall Abyad to Omaha (Nebraska) | 6,345.63 mi (10,212.30 km) |
| Tall Abyad to On Top of the World Designated Place (Florida) | 6,506.36 mi (10,470.97 km) |
| Tall Abyad to Onalaska (Wisconsin) | 6,053.75 mi (9,742.57 km) |
| Tall Abyad to Oneida (New York) | 5,565.56 mi (8,956.90 km) |
| Tall Abyad to Oneonta (New York) | 5,572.05 mi (8,967.35 km) |
| Tall Abyad to Ontario (California) | 7,321.65 mi (11,783.05 km) |
| Tall Abyad to Ontario (Oregon) | 6,659.06 mi (10,716.71 km) |
| Tall Abyad to Opa-locka (Florida) | 6,579.07 mi (10,587.99 km) |
| Tall Abyad to Opelika (Alabama) | 6,448.99 mi (10,378.64 km) |
| Tall Abyad to Opelousas (Louisiana) | 6,814.25 mi (10,966.47 km) |
| Tall Abyad to Orange (California) | 7,341.09 mi (11,814.34 km) |
| Tall Abyad to Orange (Texas) | 6,896.96 mi (11,099.59 km) |
| Tall Abyad to Orange City (Florida) | 6,473.23 mi (10,417.66 km) |
| Tall Abyad to Orangeburg (South Carolina) | 6,229.41 mi (10,025.26 km) |
