| North Potomac to Nymburk | 4,305.45 mi (6,928.95 km) |
| North Potomac to Olomouc | 4,411.14 mi (7,099.05 km) |
| North Potomac to Opava | 4,424.15 mi (7,119.99 km) |
| North Potomac to Orlova | 4,447.54 mi (7,157.62 km) |
| North Potomac to Ostrava | 4,442.62 mi (7,149.70 km) |
| North Potomac to Ostrov | 4,219.67 mi (6,790.90 km) |
| North Potomac to Otrokovice | 4,435.49 mi (7,138.23 km) |
| North Potomac to Pardubice | 4,338.96 mi (6,982.88 km) |
| North Potomac to Pelhrimov | 4,337.88 mi (6,981.15 km) |
| North Potomac to Pisek | 4,299.66 mi (6,919.64 km) |
| North Potomac to Plzen | 4,254.87 mi (6,847.56 km) |
| North Potomac to Podebrady | 4,309.90 mi (6,936.11 km) |
| North Potomac to Policka | 4,368.84 mi (7,030.96 km) |
| North Potomac to Prachatice | 4,303.56 mi (6,925.91 km) |
| North Potomac to Prague | 4,284.63 mi (6,895.44 km) |
