| Diamond Bar to Cesky Tesin | 6,065.78 mi (9,761.92 km) |
| Diamond Bar to Cheb | 5,879.30 mi (9,461.81 km) |
| Diamond Bar to Chocen | 5,988.92 mi (9,638.23 km) |
| Diamond Bar to Chodov | 5,881.11 mi (9,464.74 km) |
| Diamond Bar to Chomutov | 5,887.97 mi (9,475.77 km) |
| Diamond Bar to Chotebor | 5,989.68 mi (9,639.46 km) |
| Diamond Bar to Chrudim | 5,980.33 mi (9,624.42 km) |
| Diamond Bar to Decin | 5,892.31 mi (9,482.75 km) |
| Diamond Bar to Dobris | 5,945.44 mi (9,568.25 km) |
| Diamond Bar to Domazlice | 5,929.19 mi (9,542.11 km) |
| Diamond Bar to Duchcov | 5,889.29 mi (9,477.90 km) |
| Diamond Bar to Dvur Kralove nad Labem | 5,954.17 mi (9,582.31 km) |
| Diamond Bar to Frenstat pod Radhostem | 6,066.31 mi (9,762.78 km) |
| Diamond Bar to Frydek-Mistek | 6,062.15 mi (9,756.08 km) |
| Diamond Bar to Frydlant nad Ostravici | 6,067.63 mi (9,764.91 km) |
