| Silver Spring to Port Charlotte (Florida) | 880.38 mi (1,416.84 km) |
| Silver Spring to Port Chester (New York) | 224.97 mi (362.06 km) |
| Silver Spring to Port Hueneme (California) | 2,343.12 mi (3,770.88 km) |
| Silver Spring to Port Huron (Michigan) | 394.09 mi (634.22 km) |
| Silver Spring to Port Lavaca (Texas) | 1,330.34 mi (2,140.98 km) |
| Silver Spring to Port Neches (Texas) | 1,145.06 mi (1,842.79 km) |
| Silver Spring to Port Orange (Florida) | 720.61 mi (1,159.71 km) |
| Silver Spring to Port Orchard (Washington) | 2,334.63 mi (3,757.23 km) |
| Silver Spring to Port Royal (South Carolina) | 503.50 mi (810.30 km) |
| Silver Spring to Port Salerno (Florida) | 839.35 mi (1,350.80 km) |
| Silver Spring to Port St. John (Florida) | 759.04 mi (1,221.55 km) |
| Silver Spring to Port St. Lucie (Florida) | 832.91 mi (1,340.45 km) |
| Silver Spring to Port Washington (New York) | 217.44 mi (349.93 km) |
| Silver Spring to Port Washington (Wisconsin) | 640.17 mi (1,030.26 km) |
| Silver Spring to Port Wentworth (Georgia) | 525.53 mi (845.75 km) |
