| Covington to Nuth | 4,211.88 mi (6,778.36 km) |
| Covington to Oegstgeest | 4,118.31 mi (6,627.79 km) |
| Covington to Oirschot | 4,171.09 mi (6,712.72 km) |
| Covington to Oisterwijk | 4,164.67 mi (6,702.38 km) |
| Covington to Oldebroek | 4,164.52 mi (6,702.14 km) |
| Covington to Oldenzaal | 4,207.54 mi (6,771.38 km) |
| Covington to Ommen | 4,181.87 mi (6,730.06 km) |
| Covington to Oosterend | 4,153.70 mi (6,684.73 km) |
| Covington to Oosterhout | 4,149.65 mi (6,678.21 km) |
| Covington to Oosterwolde | 4,162.48 mi (6,698.87 km) |
| Covington to Oostzaan | 4,126.62 mi (6,641.15 km) |
| Covington to Opmeer | 4,121.10 mi (6,632.27 km) |
| Covington to Oss | 4,171.12 mi (6,712.77 km) |
| Covington to Oud-Beijerland | 4,126.81 mi (6,641.46 km) |
| Covington to Oudenbosch | 4,138.48 mi (6,660.23 km) |
