| Smyrna to Oberkirch | 4,621.22 mi (7,437.13 km) |
| Smyrna to Obernburg am Main | 4,625.17 mi (7,443.49 km) |
| Smyrna to Obernkirchen | 4,552.66 mi (7,326.80 km) |
| Smyrna to Oberschleissheim | 4,772.75 mi (7,681.00 km) |
| Smyrna to Oberstdorf | 4,746.74 mi (7,639.15 km) |
| Smyrna to Obertraubling | 4,773.80 mi (7,682.69 km) |
| Smyrna to Obertshausen | 4,606.05 mi (7,412.72 km) |
| Smyrna to Oberursel | 4,591.75 mi (7,389.70 km) |
| Smyrna to Ochsenfurt | 4,668.05 mi (7,512.50 km) |
| Smyrna to Ochsenhausen | 4,712.17 mi (7,583.51 km) |
| Smyrna to Ochtrup | 4,479.96 mi (7,209.80 km) |
| Smyrna to Odenthal | 4,509.67 mi (7,257.61 km) |
| Smyrna to Oelde | 4,527.69 mi (7,286.61 km) |
| Smyrna to Oelsnitz | 4,727.09 mi (7,607.52 km) |
| Smyrna to Oer-Erkenschwick | 4,497.94 mi (7,238.73 km) |
