| Alton to Port Chester (New York) | 3,407.72 mi (5,484.20 km) |
| Alton to Port Hueneme (California) | 5,454.28 mi (8,777.82 km) |
| Alton to Port Huron (Michigan) | 3,675.45 mi (5,915.07 km) |
| Alton to Port Lavaca (Texas) | 4,933.95 mi (7,940.42 km) |
| Alton to Port Neches (Texas) | 4,756.38 mi (7,654.66 km) |
| Alton to Port Orange (Florida) | 4,264.91 mi (6,863.71 km) |
| Alton to Port Orchard (Washington) | 4,795.20 mi (7,717.12 km) |
| Alton to Port Royal (South Carolina) | 4,093.76 mi (6,588.27 km) |
| Alton to Port Salerno (Florida) | 4,327.00 mi (6,963.63 km) |
| Alton to Port St. John (Florida) | 4,287.50 mi (6,900.07 km) |
| Alton to Port St. Lucie (Florida) | 4,328.85 mi (6,966.60 km) |
| Alton to Port Washington (New York) | 3,415.64 mi (5,496.94 km) |
| Alton to Port Washington (Wisconsin) | 3,867.62 mi (6,224.33 km) |
| Alton to Port Wentworth (Georgia) | 4,122.28 mi (6,634.17 km) |
| Alton to Portage (Indiana) | 3,922.51 mi (6,312.67 km) |
