| Duluth to San Luis Obispo (California) | 1,673.27 mi (2,692.87 km) |
| Duluth to San Marcos (California) | 1,615.19 mi (2,599.40 km) |
| Duluth to San Marcos (Texas) | 1,208.48 mi (1,944.87 km) |
| Duluth to San Marino (California) | 1,609.86 mi (2,590.82 km) |
| Duluth to San Mateo (California) | 1,658.60 mi (2,669.27 km) |
| Duluth to San Pablo (California) | 1,645.06 mi (2,647.47 km) |
| Duluth to San Rafael (California) | 1,652.42 mi (2,659.31 km) |
| Duluth to San Ramon (California) | 1,633.48 mi (2,628.84 km) |
| Duluth to San Tan Valley (Arizona) | 1,385.83 mi (2,230.28 km) |
| Duluth to Sand Springs (Oklahoma) | 763.37 mi (1,228.52 km) |
| Duluth to Sandusky (Ohio) | 594.88 mi (957.36 km) |
| Duluth to Sandy (Oregon) | 1,438.13 mi (2,314.45 km) |
| Duluth to Sandy (Utah) | 1,070.52 mi (1,722.83 km) |
| Duluth to Sandy Springs (Georgia) | 975.66 mi (1,570.18 km) |
| Duluth to Sanford (Florida) | 1,373.97 mi (2,211.19 km) |
