| Covington to Oerlinghausen | 4,283.81 mi (6,894.12 km) |
| Covington to Oestrich-Winkel | 4,323.86 mi (6,958.57 km) |
| Covington to Offenburg | 4,373.19 mi (7,037.96 km) |
| Covington to Oftersheim | 4,367.96 mi (7,029.55 km) |
| Covington to Ohrdruf | 4,400.04 mi (7,081.18 km) |
| Covington to Ohringen | 4,409.58 mi (7,096.53 km) |
| Covington to Olbernhau | 4,503.07 mi (7,246.99 km) |
| Covington to Olching | 4,516.18 mi (7,268.09 km) |
| Covington to Oldenburg | 4,228.69 mi (6,805.42 km) |
| Covington to Oldenburg in Holstein | 4,286.92 mi (6,899.13 km) |
| Covington to Olfen | 4,243.69 mi (6,829.56 km) |
| Covington to Olpe | 4,283.63 mi (6,893.84 km) |
| Covington to Olsberg | 4,297.33 mi (6,915.88 km) |
| Covington to Oranienburg | 4,424.03 mi (7,119.79 km) |
| Covington to Ortenberg | 4,352.56 mi (7,004.77 km) |
