| Opfikon to Carmignano | 276.47 mi (444.94 km) |
| Opfikon to Carovigno | 647.64 mi (1,042.27 km) |
| Opfikon to Carpenedolo | 168.26 mi (270.79 km) |
| Opfikon to Carpi | 214.08 mi (344.52 km) |
| Opfikon to Carrara | 243.23 mi (391.45 km) |
| Opfikon to Carugate | 135.13 mi (217.48 km) |
| Opfikon to Casal di Principe | 521.71 mi (839.62 km) |
| Opfikon to Casale Monferrato | 158.94 mi (255.78 km) |
| Opfikon to Casale sul Sile | 219.32 mi (352.95 km) |
| Opfikon to Casalecchio di Reno | 241.98 mi (389.43 km) |
| Opfikon to Casalgrande | 222.66 mi (358.33 km) |
| Opfikon to Casalmaggiore | 190.79 mi (307.04 km) |
| Opfikon to Casalnuovo di Napoli | 533.37 mi (858.38 km) |
| Opfikon to Casalpusterlengo | 164.19 mi (264.24 km) |
| Opfikon to Casaluce | 524.45 mi (844.03 km) |
