| Sumner to Cesky Tesin | 5,341.32 mi (8,596.02 km) |
| Sumner to Cheb | 5,190.14 mi (8,352.73 km) |
| Sumner to Chocen | 5,277.25 mi (8,492.91 km) |
| Sumner to Chodov | 5,188.68 mi (8,350.38 km) |
| Sumner to Chomutov | 5,190.15 mi (8,352.74 km) |
| Sumner to Chotebor | 5,282.95 mi (8,502.09 km) |
| Sumner to Chrudim | 5,271.50 mi (8,483.66 km) |
| Sumner to Decin | 5,187.97 mi (8,349.23 km) |
| Sumner to Dobris | 5,247.37 mi (8,444.83 km) |
| Sumner to Domazlice | 5,240.79 mi (8,434.24 km) |
| Sumner to Duchcov | 5,188.64 mi (8,350.31 km) |
| Sumner to Dvur Kralove nad Labem | 5,242.41 mi (8,436.85 km) |
| Sumner to Frenstat pod Radhostem | 5,345.38 mi (8,602.56 km) |
| Sumner to Frydek-Mistek | 5,339.65 mi (8,593.33 km) |
| Sumner to Frydlant nad Ostravici | 5,345.58 mi (8,602.88 km) |
