| Greenock to Superior (Colorado) | 4,351.09 mi (7,002.41 km) |
| Greenock to Superior (Wisconsin) | 3,566.40 mi (5,739.57 km) |
| Greenock to Surprise (Arizona) | 4,937.51 mi (7,946.16 km) |
| Greenock to Susanville (California) | 4,797.03 mi (7,720.08 km) |
| Greenock to Sussex (Wisconsin) | 3,605.97 mi (5,803.25 km) |
| Greenock to Suwanee (Georgia) | 3,912.81 mi (6,297.05 km) |
| Greenock to Swansea (Illinois) | 3,899.48 mi (6,275.61 km) |
| Greenock to Sweetwater (Florida) | 4,211.00 mi (6,776.95 km) |
| Greenock to Sweetwater (Texas) | 4,596.45 mi (7,397.28 km) |
| Greenock to Sycamore (Illinois) | 3,678.56 mi (5,920.07 km) |
| Greenock to Sylacauga (Alabama) | 4,040.92 mi (6,503.23 km) |
| Greenock to Sylvania (Ohio) | 3,512.95 mi (5,653.55 km) |
| Greenock to Syosset (New York) | 3,175.11 mi (5,109.84 km) |
| Greenock to Syracuse (New York) | 3,169.96 mi (5,101.57 km) |
| Greenock to Syracuse (Utah) | 4,506.94 mi (7,253.21 km) |
