| Echelon to San Luis Obispo (California) | 2,494.41 mi (4,014.37 km) |
| Echelon to San Marcos (California) | 2,365.89 mi (3,807.53 km) |
| Echelon to San Marcos (Texas) | 1,465.76 mi (2,358.91 km) |
| Echelon to San Marino (California) | 2,388.95 mi (3,844.64 km) |
| Echelon to San Mateo (California) | 2,526.44 mi (4,065.91 km) |
| Echelon to San Pablo (California) | 2,519.05 mi (4,054.02 km) |
| Echelon to San Rafael (California) | 2,527.75 mi (4,068.01 km) |
| Echelon to San Ramon (California) | 2,502.35 mi (4,027.14 km) |
| Echelon to San Tan Valley (Arizona) | 2,067.08 mi (3,326.65 km) |
| Echelon to Sand Springs (Oklahoma) | 1,175.98 mi (1,892.56 km) |
| Echelon to Sandusky (Ohio) | 418.67 mi (673.79 km) |
| Echelon to Sandy (Oregon) | 2,398.60 mi (3,860.17 km) |
| Echelon to Sandy (Utah) | 1,931.00 mi (3,107.64 km) |
| Echelon to Sandy Springs (Georgia) | 659.03 mi (1,060.61 km) |
| Echelon to Sanford (Florida) | 843.38 mi (1,357.29 km) |
