| Duluth to Florence (South Carolina) | 1,082.95 mi (1,742.84 km) |
| Duluth to Florence-Graham (California) | 1,622.52 mi (2,611.19 km) |
| Duluth to Florham Park (New Jersey) | 974.52 mi (1,568.33 km) |
| Duluth to Florida (Puerto Rico) | 2,440.93 mi (3,928.30 km) |
| Duluth to Florida City (Florida) | 1,607.42 mi (2,586.90 km) |
| Duluth to Florida Ridge (Florida) | 1,471.87 mi (2,368.74 km) |
| Duluth to Florin (California) | 1,582.89 mi (2,547.41 km) |
| Duluth to Florissant (Missouri) | 558.65 mi (899.07 km) |
| Duluth to Flower Hill (Maryland) | 918.44 mi (1,478.09 km) |
| Duluth to Flower Mound (Texas) | 984.84 mi (1,584.94 km) |
| Duluth to Flowing Wells (Arizona) | 1,411.49 mi (2,271.58 km) |
| Duluth to Foley (Alabama) | 1,156.57 mi (1,861.32 km) |
| Duluth to Folsom (California) | 1,564.25 mi (2,517.41 km) |
| Duluth to Fond du Lac (Wisconsin) | 274.58 mi (441.90 km) |
| Duluth to Fontana (California) | 1,582.79 mi (2,547.25 km) |
