| Highland Springs to Nuth | 3,996.89 mi (6,432.37 km) |
| Highland Springs to Oegstgeest | 3,908.96 mi (6,290.87 km) |
| Highland Springs to Oirschot | 3,958.76 mi (6,371.00 km) |
| Highland Springs to Oisterwijk | 3,952.69 mi (6,361.25 km) |
| Highland Springs to Oldebroek | 3,959.34 mi (6,371.95 km) |
| Highland Springs to Oldenzaal | 4,003.32 mi (6,442.72 km) |
| Highland Springs to Ommen | 3,978.02 mi (6,402.01 km) |
| Highland Springs to Oosterend | 3,952.42 mi (6,360.80 km) |
| Highland Springs to Oosterhout | 3,937.46 mi (6,336.73 km) |
| Highland Springs to Oosterwolde | 3,961.50 mi (6,375.42 km) |
| Highland Springs to Oostzaan | 3,919.60 mi (6,307.99 km) |
| Highland Springs to Opmeer | 3,915.94 mi (6,302.09 km) |
| Highland Springs to Oss | 3,960.88 mi (6,374.42 km) |
| Highland Springs to Oud-Beijerland | 3,914.96 mi (6,300.52 km) |
| Highland Springs to Oudenbosch | 3,925.37 mi (6,317.27 km) |
