| Irthlingborough to Salisbury (New York) | 3,404.75 mi (5,479.41 km) |
| Irthlingborough to Salisbury (North Carolina) | 3,918.85 mi (6,306.78 km) |
| Irthlingborough to Salmon Creek (Washington) | 4,844.72 mi (7,796.83 km) |
| Irthlingborough to Salt Lake City (Utah) | 4,808.42 mi (7,738.41 km) |
| Irthlingborough to Sammamish (Washington) | 4,719.69 mi (7,595.61 km) |
| Irthlingborough to San Angelo (Texas) | 4,913.08 mi (7,906.84 km) |
| Irthlingborough to San Anselmo (California) | 5,291.05 mi (8,515.12 km) |
| Irthlingborough to San Antonio (Texas) | 4,945.33 mi (7,958.73 km) |
| Irthlingborough to San Benito (Texas) | 5,089.09 mi (8,190.11 km) |
| Irthlingborough to San Bernardino (California) | 5,352.16 mi (8,613.47 km) |
| Irthlingborough to San Bruno (California) | 5,307.85 mi (8,542.16 km) |
| Irthlingborough to San Buenaventura (California) | 5,405.83 mi (8,699.85 km) |
| Irthlingborough to San Carlos (California) | 5,310.51 mi (8,546.44 km) |
| Irthlingborough to San Carlos Park (Florida) | 4,430.15 mi (7,129.64 km) |
| Irthlingborough to San Clemente (California) | 5,401.94 mi (8,693.58 km) |
