| Echelon to Somersworth (New Hampshire) | 316.97 mi (510.11 km) |
| Echelon to Somerton (Arizona) | 2,249.63 mi (3,620.42 km) |
| Echelon to Somerville (Massachusetts) | 268.18 mi (431.60 km) |
| Echelon to Somerville (New Jersey) | 53.85 mi (86.67 km) |
| Echelon to Sonoma (California) | 2,518.14 mi (4,052.55 km) |
| Echelon to Soquel (California) | 2,519.98 mi (4,055.52 km) |
| Echelon to South Bend (Indiana) | 602.89 mi (970.26 km) |
| Echelon to South Bradenton (Florida) | 959.71 mi (1,544.51 km) |
| Echelon to South Burlington (Vermont) | 331.49 mi (533.48 km) |
| Echelon to South Charleston (West Virginia) | 374.94 mi (603.41 km) |
| Echelon to South Daytona (Florida) | 813.02 mi (1,308.43 km) |
| Echelon to South El Monte (California) | 2,387.45 mi (3,842.23 km) |
| Echelon to South Elgin (Illinois) | 710.10 mi (1,142.80 km) |
| Echelon to South Euclid (Ohio) | 361.02 mi (581.00 km) |
| Echelon to South Farmingdale (New York) | 101.33 mi (163.08 km) |
