| Port Neches to Superior (Colorado) | 934.67 mi (1,504.20 km) |
| Port Neches to Superior (Wisconsin) | 1,159.39 mi (1,865.86 km) |
| Port Neches to Surprise (Arizona) | 1,114.41 mi (1,793.47 km) |
| Port Neches to Susanville (California) | 1,660.79 mi (2,672.78 km) |
| Port Neches to Sussex (Wisconsin) | 962.40 mi (1,548.84 km) |
| Port Neches to Suwanee (Georgia) | 643.09 mi (1,034.95 km) |
| Port Neches to Swansea (Illinois) | 633.93 mi (1,020.20 km) |
| Port Neches to Sweetwater (Florida) | 877.35 mi (1,411.95 km) |
| Port Neches to Sweetwater (Texas) | 418.82 mi (674.03 km) |
| Port Neches to Sycamore (Illinois) | 880.57 mi (1,417.14 km) |
| Port Neches to Sylacauga (Alabama) | 503.37 mi (810.10 km) |
| Port Neches to Sylvania (Ohio) | 991.32 mi (1,595.37 km) |
| Port Neches to Syosset (New York) | 1,368.21 mi (2,201.92 km) |
| Port Neches to Syracuse (New York) | 1,333.48 mi (2,146.02 km) |
| Port Neches to Syracuse (Utah) | 1,271.42 mi (2,046.15 km) |
