| Grayslake to The Villages (Florida) | 987.85 mi (1,589.79 km) |
| Grayslake to The Woodlands (Texas) | 937.30 mi (1,508.44 km) |
| Grayslake to Thibodaux (Louisiana) | 880.48 mi (1,416.99 km) |
| Grayslake to Thomasville (Georgia) | 825.61 mi (1,328.69 km) |
| Grayslake to Thomasville (North Carolina) | 616.67 mi (992.43 km) |
| Grayslake to Thonotosassa (Florida) | 1,038.83 mi (1,671.83 km) |
| Grayslake to Thornton (Colorado) | 894.21 mi (1,439.10 km) |
| Grayslake to Thousand Oaks (California) | 1,753.99 mi (2,822.77 km) |
| Grayslake to Three Lakes (Florida) | 1,232.55 mi (1,983.59 km) |
| Grayslake to Tiffin (Ohio) | 264.12 mi (425.05 km) |
| Grayslake to Tifton (Georgia) | 791.57 mi (1,273.91 km) |
| Grayslake to Tigard (Oregon) | 1,730.00 mi (2,784.17 km) |
| Grayslake to Tillmans Corner (Alabama) | 812.50 mi (1,307.59 km) |
| Grayslake to Timberlake (Virginia) | 580.69 mi (934.54 km) |
| Grayslake to Timberlane (Louisiana) | 868.18 mi (1,397.20 km) |
