| Cortland to Nuth | 3,722.61 mi (5,990.96 km) |
| Cortland to Oegstgeest | 3,630.78 mi (5,843.18 km) |
| Cortland to Oirschot | 3,682.63 mi (5,926.62 km) |
| Cortland to Oisterwijk | 3,676.32 mi (5,916.46 km) |
| Cortland to Oldebroek | 3,678.48 mi (5,919.95 km) |
| Cortland to Oldenzaal | 3,721.90 mi (5,989.82 km) |
| Cortland to Ommen | 3,696.33 mi (5,948.67 km) |
| Cortland to Oosterend | 3,669.06 mi (5,904.77 km) |
| Cortland to Oosterhout | 3,661.21 mi (5,892.15 km) |
| Cortland to Oosterwolde | 3,677.96 mi (5,919.11 km) |
| Cortland to Oostzaan | 3,639.90 mi (5,857.85 km) |
| Cortland to Opmeer | 3,635.02 mi (5,850.00 km) |
| Cortland to Oss | 3,683.35 mi (5,927.79 km) |
| Cortland to Oud-Beijerland | 3,638.46 mi (5,855.54 km) |
| Cortland to Oudenbosch | 3,649.73 mi (5,873.67 km) |
