| Shannon to Port Chester (New York) | 3,055.22 mi (4,916.90 km) |
| Shannon to Port Hueneme (California) | 5,125.53 mi (8,248.75 km) |
| Shannon to Port Huron (Michigan) | 3,323.68 mi (5,348.94 km) |
| Shannon to Port Lavaca (Texas) | 4,581.23 mi (7,372.77 km) |
| Shannon to Port Neches (Texas) | 4,403.51 mi (7,086.77 km) |
| Shannon to Port Orange (Florida) | 3,916.17 mi (6,302.46 km) |
| Shannon to Port Orchard (Washington) | 4,495.14 mi (7,234.22 km) |
| Shannon to Port Royal (South Carolina) | 3,743.00 mi (6,023.77 km) |
| Shannon to Port Salerno (Florida) | 3,980.57 mi (6,406.12 km) |
| Shannon to Port St. John (Florida) | 3,939.41 mi (6,339.86 km) |
| Shannon to Port St. Lucie (Florida) | 3,982.12 mi (6,408.61 km) |
| Shannon to Port Washington (New York) | 3,063.20 mi (4,929.74 km) |
| Shannon to Port Washington (Wisconsin) | 3,518.34 mi (5,662.22 km) |
| Shannon to Port Wentworth (Georgia) | 3,771.38 mi (6,069.45 km) |
| Shannon to Portage (Indiana) | 3,571.60 mi (5,747.94 km) |
