| Alpena to Somersworth (New Hampshire) | 634.15 mi (1,020.57 km) |
| Alpena to Somerton (Arizona) | 1,874.02 mi (3,015.94 km) |
| Alpena to Somerville (Massachusetts) | 642.56 mi (1,034.10 km) |
| Alpena to Somerville (New Jersey) | 544.61 mi (876.46 km) |
| Alpena to Sonoma (California) | 2,046.27 mi (3,293.16 km) |
| Alpena to Soquel (California) | 2,061.72 mi (3,318.01 km) |
| Alpena to South Bend (Indiana) | 274.35 mi (441.52 km) |
| Alpena to South Bradenton (Florida) | 1,217.85 mi (1,959.93 km) |
| Alpena to South Burlington (Vermont) | 502.77 mi (809.13 km) |
| Alpena to South Charleston (West Virginia) | 473.49 mi (762.01 km) |
| Alpena to South Daytona (Florida) | 1,107.17 mi (1,781.82 km) |
| Alpena to South El Monte (California) | 1,975.84 mi (3,179.81 km) |
| Alpena to South Elgin (Illinois) | 323.89 mi (521.26 km) |
| Alpena to South Euclid (Ohio) | 263.50 mi (424.06 km) |
| Alpena to South Farmingdale (New York) | 587.97 mi (946.25 km) |
