| Douai to Carson (California) | 5,608.87 mi (9,026.61 km) |
| Douai to Carson City (Nevada) | 5,347.83 mi (8,606.50 km) |
| Douai to Carteret (New Jersey) | 3,633.75 mi (5,847.95 km) |
| Douai to Cartersville (Georgia) | 4,361.57 mi (7,019.28 km) |
| Douai to Carthage (Missouri) | 4,590.90 mi (7,388.35 km) |
| Douai to Cary (Illinois) | 4,115.71 mi (6,623.59 km) |
| Douai to Cary (North Carolina) | 4,038.50 mi (6,499.33 km) |
| Douai to Casa de Oro-Mount Helix (California) | 5,629.34 mi (9,059.55 km) |
| Douai to Casa Grande (Arizona) | 5,447.67 mi (8,767.17 km) |
| Douai to Casas Adobes (Arizona) | 5,453.26 mi (8,776.17 km) |
| Douai to Cascades (Virginia) | 3,830.78 mi (6,165.05 km) |
| Douai to Casper (Wyoming) | 4,724.93 mi (7,604.04 km) |
| Douai to Casselberry (Florida) | 4,484.95 mi (7,217.83 km) |
| Douai to Castaic (California) | 5,583.53 mi (8,985.82 km) |
| Douai to Castle Pines (Colorado) | 4,854.49 mi (7,812.54 km) |
