| Champaign to Security-Widefield (Colorado) | 881.15 mi (1,418.08 km) |
| Champaign to Sedalia (Missouri) | 282.06 mi (453.93 km) |
| Champaign to Sedro-Woolley (Washington) | 1,759.26 mi (2,831.25 km) |
| Champaign to Seguin (Texas) | 910.29 mi (1,464.97 km) |
| Champaign to Selden (New York) | 800.80 mi (1,288.76 km) |
| Champaign to Selma (Alabama) | 536.30 mi (863.10 km) |
| Champaign to Selma (California) | 1,706.94 mi (2,747.05 km) |
| Champaign to Selma (Texas) | 922.29 mi (1,484.29 km) |
| Champaign to Seminole (Florida) | 903.78 mi (1,454.49 km) |
| Champaign to Seven Hills (Ohio) | 356.28 mi (573.38 km) |
| Champaign to Seven Oaks (South Carolina) | 574.20 mi (924.09 km) |
| Champaign to Severn (Maryland) | 619.42 mi (996.86 km) |
| Champaign to Severna Park (Maryland) | 626.70 mi (1,008.58 km) |
| Champaign to Sevierville (Tennessee) | 388.39 mi (625.05 km) |
| Champaign to Seymour (Indiana) | 150.39 mi (242.02 km) |
