| Letterkenny to Cavaillon | 955.67 mi (1,538.01 km) |
| Letterkenny to Cebazat | 788.47 mi (1,268.92 km) |
| Letterkenny to Cenon | 766.63 mi (1,233.77 km) |
| Letterkenny to Cergy | 582.57 mi (937.55 km) |
| Letterkenny to Cernay | 807.60 mi (1,299.70 km) |
| Letterkenny to Cesson | 623.14 mi (1,002.84 km) |
| Letterkenny to Cesson-Sevigne | 540.06 mi (869.14 km) |
| Letterkenny to Cestas | 771.20 mi (1,241.12 km) |
| Letterkenny to Chalette-sur-Loing | 656.42 mi (1,056.41 km) |
| Letterkenny to Challans | 614.94 mi (989.65 km) |
| Letterkenny to Chalon-sur-Saone | 784.95 mi (1,263.26 km) |
| Letterkenny to Chalons-en-Champagne | 659.21 mi (1,060.90 km) |
| Letterkenny to Chamalieres | 790.96 mi (1,272.92 km) |
| Letterkenny to Chambery | 881.94 mi (1,419.34 km) |
| Letterkenny to Chambly | 581.51 mi (935.86 km) |
