| Korydallos to Oegstgeest | 1,347.69 mi (2,168.89 km) |
| Korydallos to Oirschot | 1,290.29 mi (2,076.52 km) |
| Korydallos to Oisterwijk | 1,297.26 mi (2,087.73 km) |
| Korydallos to Oldebroek | 1,313.90 mi (2,114.52 km) |
| Korydallos to Oldenzaal | 1,275.91 mi (2,053.37 km) |
| Korydallos to Ommen | 1,301.17 mi (2,094.03 km) |
| Korydallos to Oosterend | 1,335.03 mi (2,148.52 km) |
| Korydallos to Oosterhout | 1,311.30 mi (2,110.34 km) |
| Korydallos to Oosterwolde | 1,327.68 mi (2,136.70 km) |
| Korydallos to Oostzaan | 1,345.22 mi (2,164.93 km) |
| Korydallos to Opmeer | 1,355.15 mi (2,180.90 km) |
| Korydallos to Oss | 1,294.91 mi (2,083.96 km) |
| Korydallos to Oud-Beijerland | 1,334.08 mi (2,146.99 km) |
| Korydallos to Oudenbosch | 1,320.21 mi (2,124.67 km) |
| Korydallos to Oudewater | 1,327.26 mi (2,136.02 km) |
