| Westerville to Smithville (Missouri) | 620.61 mi (998.77 km) |
| Westerville to Smyrna (Delaware) | 392.79 mi (632.14 km) |
| Westerville to Smyrna (Georgia) | 441.43 mi (710.41 km) |
| Westerville to Smyrna (Tennessee) | 347.66 mi (559.50 km) |
| Westerville to Snellville (Georgia) | 437.16 mi (703.54 km) |
| Westerville to Snoqualmie (Washington) | 1,983.76 mi (3,192.55 km) |
| Westerville to Snyder (Texas) | 1,120.77 mi (1,803.70 km) |
| Westerville to Socastee (South Carolina) | 494.36 mi (795.59 km) |
| Westerville to Socorro (Texas) | 1,426.41 mi (2,295.59 km) |
| Westerville to Soddy-Daisy (Tennessee) | 358.09 mi (576.29 km) |
| Westerville to Solana Beach (California) | 1,955.07 mi (3,146.39 km) |
| Westerville to Soledad (California) | 2,082.97 mi (3,352.21 km) |
| Westerville to Solon (Ohio) | 116.68 mi (187.79 km) |
| Westerville to Somers Point (New Jersey) | 445.20 mi (716.49 km) |
| Westerville to Somerset (Kentucky) | 229.04 mi (368.60 km) |
