| Idaho Falls to Solofra | 5,740.25 mi (9,238.04 km) |
| Idaho Falls to Somma Lombardo | 5,286.07 mi (8,507.11 km) |
| Idaho Falls to Somma Vesuviana | 5,725.40 mi (9,214.14 km) |
| Idaho Falls to Sommacampagna | 5,367.04 mi (8,637.42 km) |
| Idaho Falls to Sona | 5,364.74 mi (8,633.71 km) |
| Idaho Falls to Sondrio | 5,296.00 mi (8,523.09 km) |
| Idaho Falls to Sora | 5,653.19 mi (9,097.92 km) |
| Idaho Falls to Sorbolo | 5,384.69 mi (8,665.82 km) |
| Idaho Falls to Soresina | 5,342.89 mi (8,598.55 km) |
| Idaho Falls to Sorisole | 5,312.61 mi (8,549.82 km) |
| Idaho Falls to Sorrento | 5,737.13 mi (9,233.01 km) |
| Idaho Falls to Sorso | 5,542.25 mi (8,919.39 km) |
| Idaho Falls to Sortino | 5,951.95 mi (9,578.73 km) |
| Idaho Falls to Soverato Marina | 5,913.68 mi (9,517.14 km) |
| Idaho Falls to Sovicille | 5,493.51 mi (8,840.95 km) |
