| Norristown to Nymburk | 4,183.25 mi (6,732.29 km) |
| Norristown to Olomouc | 4,289.01 mi (6,902.49 km) |
| Norristown to Opava | 4,302.21 mi (6,923.73 km) |
| Norristown to Orlova | 4,325.62 mi (6,961.42 km) |
| Norristown to Ostrava | 4,320.69 mi (6,953.47 km) |
| Norristown to Ostrov | 4,097.29 mi (6,593.95 km) |
| Norristown to Otrokovice | 4,313.28 mi (6,941.55 km) |
| Norristown to Pardubice | 4,216.79 mi (6,786.27 km) |
| Norristown to Pelhrimov | 4,215.49 mi (6,784.17 km) |
| Norristown to Pisek | 4,177.13 mi (6,722.44 km) |
| Norristown to Plzen | 4,132.39 mi (6,650.43 km) |
| Norristown to Podebrady | 4,187.69 mi (6,739.44 km) |
| Norristown to Policka | 4,246.63 mi (6,834.29 km) |
| Norristown to Prachatice | 4,180.94 mi (6,728.57 km) |
| Norristown to Prague | 4,162.33 mi (6,698.63 km) |
