| Huntsville to Nuth | 4,506.68 mi (7,252.80 km) |
| Huntsville to Oegstgeest | 4,415.02 mi (7,105.29 km) |
| Huntsville to Oirschot | 4,466.80 mi (7,188.63 km) |
| Huntsville to Oisterwijk | 4,460.50 mi (7,178.49 km) |
| Huntsville to Oldebroek | 4,462.71 mi (7,182.03 km) |
| Huntsville to Oldenzaal | 4,506.10 mi (7,251.87 km) |
| Huntsville to Ommen | 4,480.52 mi (7,210.71 km) |
| Huntsville to Oosterend | 4,453.17 mi (7,166.68 km) |
| Huntsville to Oosterhout | 4,445.39 mi (7,154.16 km) |
| Huntsville to Oosterwolde | 4,462.06 mi (7,180.99 km) |
| Huntsville to Oostzaan | 4,424.14 mi (7,119.97 km) |
| Huntsville to Opmeer | 4,419.24 mi (7,112.08 km) |
| Huntsville to Oss | 4,467.58 mi (7,189.87 km) |
| Huntsville to Oud-Beijerland | 4,422.65 mi (7,117.56 km) |
| Huntsville to Oudenbosch | 4,433.88 mi (7,135.64 km) |
