| Sumner to Celano | 5,699.81 mi (9,172.96 km) |
| Sumner to Cento | 5,484.49 mi (8,826.43 km) |
| Sumner to Cepagatti | 5,695.17 mi (9,165.48 km) |
| Sumner to Ceprano | 5,731.37 mi (9,223.75 km) |
| Sumner to Cercola | 5,793.47 mi (9,323.68 km) |
| Sumner to Cerea | 5,454.96 mi (8,778.91 km) |
| Sumner to Cerese | 5,452.43 mi (8,774.85 km) |
| Sumner to Cerignola | 5,806.32 mi (9,344.37 km) |
| Sumner to Cermenate | 5,372.32 mi (8,645.92 km) |
| Sumner to Cernusco sul Naviglio | 5,389.43 mi (8,673.45 km) |
| Sumner to Cerreto Guidi | 5,532.30 mi (8,903.37 km) |
| Sumner to Cerro Maggiore | 5,374.85 mi (8,649.99 km) |
| Sumner to Certaldo | 5,549.34 mi (8,930.79 km) |
| Sumner to Cerveteri | 5,668.83 mi (9,123.10 km) |
| Sumner to Cervia | 5,539.18 mi (8,914.45 km) |
