| Sulphur to Channelview (Texas) | 109.42 mi (176.10 km) |
| Sulphur to Chantilly (Virginia) | 1,082.64 mi (1,742.34 km) |
| Sulphur to Chaparral (New Mexico) | 781.36 mi (1,257.47 km) |
| Sulphur to Chapel Hill (North Carolina) | 916.39 mi (1,474.78 km) |
| Sulphur to Charleston (Illinois) | 703.34 mi (1,131.91 km) |
| Sulphur to Charleston (South Carolina) | 807.92 mi (1,300.22 km) |
| Sulphur to Charleston (West Virginia) | 872.01 mi (1,403.37 km) |
| Sulphur to Charlotte (North Carolina) | 804.51 mi (1,294.73 km) |
| Sulphur to Charlottesville (Virginia) | 1,005.23 mi (1,617.77 km) |
| Sulphur to Chaska (Minnesota) | 1,008.01 mi (1,622.24 km) |
| Sulphur to Chatham (Illinois) | 684.57 mi (1,101.71 km) |
| Sulphur to Chattanooga (Tennessee) | 577.79 mi (929.86 km) |
| Sulphur to Cheat Lake (West Virginia) | 1,002.84 mi (1,613.91 km) |
| Sulphur to Chelsea (Alabama) | 449.19 mi (722.91 km) |
| Sulphur to Chelsea (Massachusetts) | 1,493.11 mi (2,402.93 km) |
