| Oak Ridge to Nymburk | 4,730.62 mi (7,613.20 km) |
| Oak Ridge to Olomouc | 4,835.80 mi (7,782.46 km) |
| Oak Ridge to Opava | 4,847.56 mi (7,801.39 km) |
| Oak Ridge to Orlova | 4,870.69 mi (7,838.62 km) |
| Oak Ridge to Ostrava | 4,865.91 mi (7,830.93 km) |
| Oak Ridge to Ostrov | 4,646.13 mi (7,477.22 km) |
| Oak Ridge to Otrokovice | 4,860.69 mi (7,822.53 km) |
| Oak Ridge to Pardubice | 4,763.86 mi (7,666.70 km) |
| Oak Ridge to Pelhrimov | 4,764.44 mi (7,667.62 km) |
| Oak Ridge to Pisek | 4,727.24 mi (7,607.76 km) |
| Oak Ridge to Plzen | 4,682.15 mi (7,535.19 km) |
| Oak Ridge to Podebrady | 4,735.10 mi (7,620.40 km) |
| Oak Ridge to Policka | 4,794.03 mi (7,715.24 km) |
| Oak Ridge to Prachatice | 4,731.81 mi (7,615.11 km) |
| Oak Ridge to Prague | 4,710.46 mi (7,580.76 km) |
