| Olecko to Castrovillari | 1,025.27 mi (1,650.01 km) |
| Olecko to Catania | 1,195.28 mi (1,923.61 km) |
| Olecko to Catanzaro | 1,081.72 mi (1,740.85 km) |
| Olecko to Cattolica | 822.79 mi (1,324.16 km) |
| Olecko to Cava de' Tirreni | 989.48 mi (1,592.42 km) |
| Olecko to Cavallino | 968.55 mi (1,558.72 km) |
| Olecko to Cavarzere | 770.08 mi (1,239.32 km) |
| Olecko to Cave | 951.28 mi (1,530.93 km) |
| Olecko to Cavriago | 837.80 mi (1,348.31 km) |
| Olecko to Cavriglia | 880.74 mi (1,417.42 km) |
| Olecko to Cazzago San Martino | 804.21 mi (1,294.24 km) |
| Olecko to Ceccano | 958.85 mi (1,543.12 km) |
| Olecko to Cecina | 917.77 mi (1,477.00 km) |
| Olecko to Cefalu | 1,176.00 mi (1,892.59 km) |
| Olecko to Ceglie Messapico | 953.26 mi (1,534.13 km) |
