| Diamond Bar to Nymburk | 5,947.17 mi (9,571.05 km) |
| Diamond Bar to Olomouc | 6,038.75 mi (9,718.42 km) |
| Diamond Bar to Opava | 6,036.42 mi (9,714.68 km) |
| Diamond Bar to Orlova | 6,055.16 mi (9,744.84 km) |
| Diamond Bar to Ostrava | 6,052.18 mi (9,740.04 km) |
| Diamond Bar to Ostrov | 5,883.10 mi (9,467.93 km) |
| Diamond Bar to Otrokovice | 6,067.63 mi (9,764.91 km) |
| Diamond Bar to Pardubice | 5,975.06 mi (9,615.94 km) |
| Diamond Bar to Pelhrimov | 5,993.50 mi (9,645.60 km) |
| Diamond Bar to Pisek | 5,970.55 mi (9,608.67 km) |
| Diamond Bar to Plzen | 5,925.34 mi (9,535.92 km) |
| Diamond Bar to Podebrady | 5,951.64 mi (9,578.24 km) |
| Diamond Bar to Policka | 6,005.95 mi (9,665.65 km) |
| Diamond Bar to Prachatice | 5,982.43 mi (9,627.78 km) |
| Diamond Bar to Prague | 5,935.74 mi (9,552.65 km) |
