| Killarney to Smyrna (Delaware) | 3,191.71 mi (5,136.56 km) |
| Killarney to Smyrna (Georgia) | 3,810.15 mi (6,131.85 km) |
| Killarney to Smyrna (Tennessee) | 3,793.33 mi (6,104.78 km) |
| Killarney to Snellville (Georgia) | 3,789.18 mi (6,098.09 km) |
| Killarney to Snoqualmie (Washington) | 4,485.21 mi (7,218.24 km) |
| Killarney to Snyder (Texas) | 4,530.67 mi (7,291.40 km) |
| Killarney to Socastee (South Carolina) | 3,588.22 mi (5,774.69 km) |
| Killarney to Socorro (Texas) | 4,793.84 mi (7,714.95 km) |
| Killarney to Soddy-Daisy (Tennessee) | 3,771.26 mi (6,069.26 km) |
| Killarney to Solana Beach (California) | 5,126.88 mi (8,250.92 km) |
| Killarney to Soledad (California) | 5,076.33 mi (8,169.57 km) |
| Killarney to Solon (Ohio) | 3,341.27 mi (5,377.25 km) |
| Killarney to Somers Point (New Jersey) | 3,148.94 mi (5,067.72 km) |
| Killarney to Somerset (Kentucky) | 3,662.88 mi (5,894.83 km) |
| Killarney to Somerset (New Jersey) | 3,093.64 mi (4,978.73 km) |
