| Douai to Castle Rock (Colorado) | 4,858.45 mi (7,818.92 km) |
| Douai to Castro Valley (California) | 5,499.34 mi (8,850.33 km) |
| Douai to Catalina Foothills (Arizona) | 5,450.94 mi (8,772.43 km) |
| Douai to Cataño (Puerto Rico) | 4,334.08 mi (6,975.02 km) |
| Douai to Cathedral City (California) | 5,551.66 mi (8,934.53 km) |
| Douai to Catonsville (Maryland) | 3,794.63 mi (6,106.86 km) |
| Douai to Cave Spring (Virginia) | 4,020.76 mi (6,470.79 km) |
| Douai to Cayce (South Carolina) | 4,217.17 mi (6,786.88 km) |
| Douai to Cayey (Puerto Rico) | 4,351.45 mi (7,002.98 km) |
| Douai to Cedar City (Utah) | 5,225.64 mi (8,409.85 km) |
| Douai to Cedar Falls (Iowa) | 4,258.06 mi (6,852.69 km) |
| Douai to Cedar Hill (Texas) | 4,924.50 mi (7,925.21 km) |
| Douai to Cedar Lake (Indiana) | 4,124.09 mi (6,637.08 km) |
| Douai to Cedar Mill (Oregon) | 5,062.60 mi (8,147.47 km) |
| Douai to Cedar Park (Texas) | 5,065.53 mi (8,152.18 km) |
