| Piqua to Superior (Colorado) | 1,103.84 mi (1,776.45 km) |
| Piqua to Superior (Wisconsin) | 598.66 mi (963.45 km) |
| Piqua to Surprise (Arizona) | 1,613.36 mi (2,596.45 km) |
| Piqua to Susanville (California) | 1,903.23 mi (3,062.95 km) |
| Piqua to Sussex (Wisconsin) | 290.98 mi (468.28 km) |
| Piqua to Suwanee (Georgia) | 421.57 mi (678.44 km) |
| Piqua to Swansea (Illinois) | 326.00 mi (524.65 km) |
| Piqua to Sweetwater (Florida) | 1,017.72 mi (1,637.86 km) |
| Piqua to Sweetwater (Texas) | 1,042.43 mi (1,677.62 km) |
| Piqua to Sycamore (Illinois) | 263.94 mi (424.76 km) |
| Piqua to Sylacauga (Alabama) | 494.51 mi (795.84 km) |
| Piqua to Sylvania (Ohio) | 111.30 mi (179.12 km) |
| Piqua to Syosset (New York) | 566.03 mi (910.94 km) |
| Piqua to Syracuse (New York) | 463.48 mi (745.90 km) |
| Piqua to Syracuse (Utah) | 1,454.58 mi (2,340.93 km) |
