| Smyrna to Nuth | 4,463.71 mi (7,183.65 km) |
| Smyrna to Oegstgeest | 4,374.06 mi (7,039.36 km) |
| Smyrna to Oirschot | 4,424.78 mi (7,121.00 km) |
| Smyrna to Oisterwijk | 4,418.61 mi (7,111.07 km) |
| Smyrna to Oldebroek | 4,423.21 mi (7,118.47 km) |
| Smyrna to Oldenzaal | 4,466.94 mi (7,188.84 km) |
| Smyrna to Ommen | 4,441.49 mi (7,147.89 km) |
| Smyrna to Oosterend | 4,415.03 mi (7,105.31 km) |
| Smyrna to Oosterhout | 4,403.42 mi (7,086.63 km) |
| Smyrna to Oosterwolde | 4,424.03 mi (7,119.79 km) |
| Smyrna to Oostzaan | 4,384.00 mi (7,055.36 km) |
| Smyrna to Opmeer | 4,379.75 mi (7,048.53 km) |
| Smyrna to Oss | 4,426.30 mi (7,123.43 km) |
| Smyrna to Oud-Beijerland | 4,380.80 mi (7,050.22 km) |
| Smyrna to Oudenbosch | 4,391.59 mi (7,067.58 km) |
