| Glen Carbon to The Villages (Florida) | 820.22 mi (1,320.02 km) |
| Glen Carbon to The Woodlands (Texas) | 671.26 mi (1,080.28 km) |
| Glen Carbon to Thibodaux (Louisiana) | 621.10 mi (999.57 km) |
| Glen Carbon to Thomasville (Georgia) | 644.12 mi (1,036.62 km) |
| Glen Carbon to Thomasville (North Carolina) | 578.85 mi (931.57 km) |
| Glen Carbon to Thonotosassa (Florida) | 862.06 mi (1,387.35 km) |
| Glen Carbon to Thornton (Colorado) | 802.58 mi (1,291.62 km) |
| Glen Carbon to Thousand Oaks (California) | 1,628.91 mi (2,621.48 km) |
| Glen Carbon to Three Lakes (Florida) | 1,063.94 mi (1,712.24 km) |
| Glen Carbon to Tiffin (Ohio) | 395.32 mi (636.20 km) |
| Glen Carbon to Tifton (Georgia) | 622.09 mi (1,001.16 km) |
| Glen Carbon to Tigard (Oregon) | 1,730.50 mi (2,784.97 km) |
| Glen Carbon to Tillmans Corner (Alabama) | 573.76 mi (923.37 km) |
| Glen Carbon to Timberlake (Virginia) | 592.20 mi (953.05 km) |
| Glen Carbon to Timberlane (Louisiana) | 613.55 mi (987.41 km) |
