| Duncan to La Crosse (Wisconsin) | 734.21 mi (1,181.60 km) |
| Duncan to La Grande (Oregon) | 1,296.59 mi (2,086.66 km) |
| Duncan to La Grange (Illinois) | 740.59 mi (1,191.86 km) |
| Duncan to La Grange Park (Illinois) | 741.69 mi (1,193.64 km) |
| Duncan to La Habra (California) | 1,143.07 mi (1,839.60 km) |
| Duncan to La Homa (Texas) | 571.38 mi (919.55 km) |
| Duncan to La Marque (Texas) | 396.40 mi (637.94 km) |
| Duncan to La Mesa (California) | 1,103.55 mi (1,775.98 km) |
| Duncan to La Mirada (California) | 1,146.60 mi (1,845.27 km) |
| Duncan to La Palma (California) | 1,148.88 mi (1,848.94 km) |
| Duncan to La Porte (Indiana) | 779.84 mi (1,255.04 km) |
| Duncan to La Porte (Texas) | 376.23 mi (605.48 km) |
| Duncan to La Presa (California) | 1,103.37 mi (1,775.70 km) |
| Duncan to La Puente (California) | 1,142.22 mi (1,838.23 km) |
| Duncan to La Quinta (California) | 1,050.65 mi (1,690.85 km) |
