| Mountain Ash to Port Chester (New York) | 3,297.98 mi (5,307.58 km) |
| Mountain Ash to Port Hueneme (California) | 5,352.17 mi (8,613.48 km) |
| Mountain Ash to Port Huron (Michigan) | 3,566.03 mi (5,738.97 km) |
| Mountain Ash to Port Lavaca (Texas) | 4,824.21 mi (7,763.81 km) |
| Mountain Ash to Port Neches (Texas) | 4,646.59 mi (7,477.96 km) |
| Mountain Ash to Port Orange (Florida) | 4,156.21 mi (6,688.77 km) |
| Mountain Ash to Port Orchard (Washington) | 4,701.86 mi (7,566.91 km) |
| Mountain Ash to Port Royal (South Carolina) | 3,984.49 mi (6,412.41 km) |
| Mountain Ash to Port Salerno (Florida) | 4,218.97 mi (6,789.77 km) |
| Mountain Ash to Port St. John (Florida) | 4,178.99 mi (6,725.43 km) |
| Mountain Ash to Port St. Lucie (Florida) | 4,220.73 mi (6,792.61 km) |
| Mountain Ash to Port Washington (New York) | 3,305.91 mi (5,320.35 km) |
| Mountain Ash to Port Washington (Wisconsin) | 3,758.99 mi (6,049.51 km) |
| Mountain Ash to Port Wentworth (Georgia) | 4,012.97 mi (6,458.25 km) |
| Mountain Ash to Portage (Indiana) | 3,813.37 mi (6,137.02 km) |
