| Frederick to Cernavoda | 5,025.53 mi (8,087.81 km) |
| Frederick to Chitila | 4,938.68 mi (7,948.04 km) |
| Frederick to Cisnadie | 4,817.31 mi (7,752.72 km) |
| Frederick to Cluj-Napoca | 4,752.64 mi (7,648.64 km) |
| Frederick to Codlea | 4,868.06 mi (7,834.39 km) |
| Frederick to Comanesti | 4,875.94 mi (7,847.06 km) |
| Frederick to Comarnic | 4,894.03 mi (7,876.18 km) |
| Frederick to Constanta | 5,056.05 mi (8,136.93 km) |
| Frederick to Corabia | 4,911.10 mi (7,903.65 km) |
| Frederick to Costesti | 4,888.78 mi (7,867.73 km) |
| Frederick to Covasna | 4,890.19 mi (7,869.99 km) |
| Frederick to Craiova | 4,860.65 mi (7,822.46 km) |
| Frederick to Cristuru Secuiesc | 4,827.75 mi (7,769.52 km) |
| Frederick to Cugir | 4,781.31 mi (7,694.77 km) |
| Frederick to Cumpana | 5,055.42 mi (8,135.92 km) |
