| Lannion to Chojnow | 875.99 mi (1,409.77 km) |
| Lannion to Chorzow | 1,007.00 mi (1,620.62 km) |
| Lannion to Choszczno | 873.58 mi (1,405.89 km) |
| Lannion to Chrzanow | 1,027.47 mi (1,653.55 km) |
| Lannion to Ciechanow | 1,084.30 mi (1,745.01 km) |
| Lannion to Ciechocinek | 1,007.79 mi (1,621.88 km) |
| Lannion to Cieszyn | 995.26 mi (1,601.72 km) |
| Lannion to Czarna Bialostocka | 1,196.47 mi (1,925.53 km) |
| Lannion to Czarnkow | 916.69 mi (1,475.27 km) |
| Lannion to Czechowice-Dziedzice | 1,011.02 mi (1,627.08 km) |
| Lannion to Czeladz | 1,012.78 mi (1,629.91 km) |
| Lannion to Czersk Pomorski | 985.59 mi (1,586.15 km) |
| Lannion to Czestochowa | 1,013.36 mi (1,630.84 km) |
| Lannion to Czluchow | 959.49 mi (1,544.15 km) |
| Lannion to Dabrowa Gornicza | 1,017.40 mi (1,637.34 km) |
