| Olecko to Cartagena | 1,588.04 mi (2,555.70 km) |
| Olecko to Cartama | 1,759.52 mi (2,831.67 km) |
| Olecko to Cartaya | 1,818.06 mi (2,925.88 km) |
| Olecko to Caspe | 1,361.61 mi (2,191.30 km) |
| Olecko to Cassa de la Selva | 1,228.66 mi (1,977.33 km) |
| Olecko to Castalla | 1,523.06 mi (2,451.13 km) |
| Olecko to Castellbisbal | 1,280.17 mi (2,060.24 km) |
| Olecko to Castelldefels | 1,290.74 mi (2,077.24 km) |
| Olecko to Castello de Ampurias | 1,202.60 mi (1,935.39 km) |
| Olecko to Castellon de la Plana | 1,427.05 mi (2,296.61 km) |
| Olecko to Castilleja de la Cuesta | 1,773.43 mi (2,854.06 km) |
| Olecko to Catarroja | 1,470.57 mi (2,366.65 km) |
| Olecko to Catral | 1,551.40 mi (2,496.74 km) |
| Olecko to Caudete | 1,527.81 mi (2,458.77 km) |
| Olecko to Cehegin | 1,588.20 mi (2,555.97 km) |
