| Catonsville to Nymburk | 4,278.20 mi (6,885.10 km) |
| Catonsville to Olomouc | 4,383.93 mi (7,055.25 km) |
| Catonsville to Opava | 4,397.04 mi (7,076.36 km) |
| Catonsville to Orlova | 4,420.44 mi (7,114.01 km) |
| Catonsville to Ostrava | 4,415.51 mi (7,106.08 km) |
| Catonsville to Ostrov | 4,192.32 mi (6,746.88 km) |
| Catonsville to Otrokovice | 4,408.23 mi (7,094.37 km) |
| Catonsville to Pardubice | 4,311.73 mi (6,939.05 km) |
| Catonsville to Pelhrimov | 4,310.52 mi (6,937.11 km) |
| Catonsville to Pisek | 4,272.22 mi (6,875.47 km) |
| Catonsville to Plzen | 4,227.46 mi (6,803.43 km) |
| Catonsville to Podebrady | 4,282.65 mi (6,892.25 km) |
| Catonsville to Policka | 4,341.58 mi (6,987.10 km) |
| Catonsville to Prachatice | 4,276.06 mi (6,881.65 km) |
| Catonsville to Prague | 4,257.32 mi (6,851.50 km) |
