| Irmo to Cesky Tesin | 4,859.25 mi (7,820.21 km) |
| Irmo to Cheb | 4,602.51 mi (7,407.02 km) |
| Irmo to Chocen | 4,757.19 mi (7,655.96 km) |
| Irmo to Chodov | 4,612.49 mi (7,423.08 km) |
| Irmo to Chomutov | 4,632.43 mi (7,455.17 km) |
| Irmo to Chotebor | 4,744.65 mi (7,635.78 km) |
| Irmo to Chrudim | 4,742.10 mi (7,631.67 km) |
| Irmo to Decin | 4,653.36 mi (7,488.86 km) |
| Irmo to Dobris | 4,683.24 mi (7,536.94 km) |
| Irmo to Domazlice | 4,644.23 mi (7,474.16 km) |
| Irmo to Duchcov | 4,641.01 mi (7,468.99 km) |
| Irmo to Dvur Kralove nad Labem | 4,727.13 mi (7,607.58 km) |
| Irmo to Frenstat pod Radhostem | 4,849.94 mi (7,805.22 km) |
| Irmo to Frydek-Mistek | 4,850.66 mi (7,806.39 km) |
| Irmo to Frydlant nad Ostravici | 4,854.20 mi (7,812.08 km) |
