| Spout Springs to Nuth | 4,173.64 mi (6,716.82 km) |
| Spout Springs to Oegstgeest | 4,086.59 mi (6,576.74 km) |
| Spout Springs to Oirschot | 4,135.93 mi (6,656.14 km) |
| Spout Springs to Oisterwijk | 4,129.92 mi (6,646.47 km) |
| Spout Springs to Oldebroek | 4,137.50 mi (6,658.66 km) |
| Spout Springs to Oldenzaal | 4,181.56 mi (6,729.57 km) |
| Spout Springs to Ommen | 4,156.34 mi (6,688.98 km) |
| Spout Springs to Oosterend | 4,131.07 mi (6,648.32 km) |
| Spout Springs to Oosterhout | 4,114.67 mi (6,621.93 km) |
| Spout Springs to Oosterwolde | 4,140.19 mi (6,662.99 km) |
| Spout Springs to Oostzaan | 4,097.54 mi (6,594.36 km) |
| Spout Springs to Opmeer | 4,094.13 mi (6,588.86 km) |
| Spout Springs to Oss | 4,138.35 mi (6,660.02 km) |
| Spout Springs to Oud-Beijerland | 4,092.24 mi (6,585.83 km) |
| Spout Springs to Oudenbosch | 4,102.46 mi (6,602.27 km) |
