| South Portland to Creutzwald | 3,526.04 mi (5,674.61 km) |
| South Portland to Croissy-sur-Seine | 3,346.51 mi (5,385.69 km) |
| South Portland to Croix | 3,341.00 mi (5,376.82 km) |
| South Portland to Crosne | 3,364.26 mi (5,414.26 km) |
| South Portland to Cuers | 3,685.66 mi (5,931.49 km) |
| South Portland to Cugnaux | 3,465.78 mi (5,577.63 km) |
| South Portland to Cusset | 3,480.04 mi (5,600.59 km) |
| South Portland to Dammarie-le-Lys | 3,377.14 mi (5,434.98 km) |
| South Portland to Dammartin-en-Goele | 3,364.33 mi (5,414.36 km) |
| South Portland to Dardilly | 3,545.97 mi (5,706.69 km) |
| South Portland to Darnetal | 3,290.24 mi (5,295.12 km) |
| South Portland to Dax | 3,352.94 mi (5,396.04 km) |
| South Portland to Decines-Charpieu | 3,555.98 mi (5,722.80 km) |
| South Portland to Denain | 3,360.00 mi (5,407.41 km) |
| South Portland to Deuil-la-Barre | 3,351.61 mi (5,393.90 km) |
