| Irthlingborough to Superior (Colorado) | 4,630.86 mi (7,452.64 km) |
| Irthlingborough to Superior (Wisconsin) | 3,840.38 mi (6,180.49 km) |
| Irthlingborough to Surprise (Arizona) | 5,219.12 mi (8,399.36 km) |
| Irthlingborough to Susanville (California) | 5,092.69 mi (8,195.89 km) |
| Irthlingborough to Sussex (Wisconsin) | 3,866.53 mi (6,222.58 km) |
| Irthlingborough to Suwanee (Georgia) | 4,141.50 mi (6,665.10 km) |
| Irthlingborough to Swansea (Illinois) | 4,152.47 mi (6,682.75 km) |
| Irthlingborough to Sweetwater (Florida) | 4,405.84 mi (7,090.51 km) |
| Irthlingborough to Sweetwater (Texas) | 4,856.92 mi (7,816.46 km) |
| Irthlingborough to Sycamore (Illinois) | 3,937.22 mi (6,336.34 km) |
| Irthlingborough to Sylacauga (Alabama) | 4,272.61 mi (6,876.10 km) |
| Irthlingborough to Sylvania (Ohio) | 3,761.84 mi (6,054.10 km) |
| Irthlingborough to Syosset (New York) | 3,399.30 mi (5,470.64 km) |
| Irthlingborough to Syracuse (New York) | 3,407.75 mi (5,484.25 km) |
| Irthlingborough to Syracuse (Utah) | 4,795.90 mi (7,718.26 km) |
