| Killarney to Roy (Utah) | 4,508.27 mi (7,255.37 km) |
| Killarney to Royal Kunia (Hawaii) | 7,017.10 mi (11,292.93 km) |
| Killarney to Royal Oak (Michigan) | 3,362.20 mi (5,410.94 km) |
| Killarney to Royal Palm Beach (Florida) | 3,979.95 mi (6,405.12 km) |
| Killarney to Royse City (Texas) | 4,335.26 mi (6,976.93 km) |
| Killarney to Ruskin (Florida) | 4,022.84 mi (6,474.13 km) |
| Killarney to Russellville (Alabama) | 3,912.08 mi (6,295.88 km) |
| Killarney to Russellville (Arkansas) | 4,094.50 mi (6,589.46 km) |
| Killarney to Ruston (Louisiana) | 4,208.70 mi (6,773.25 km) |
| Killarney to Rutherford (New Jersey) | 3,064.08 mi (4,931.16 km) |
| Killarney to Rutland (Vermont) | 2,903.97 mi (4,673.48 km) |
| Killarney to Sabana Grande (Puerto Rico) | 3,869.18 mi (6,226.84 km) |
| Killarney to Sachse (Texas) | 4,345.92 mi (6,994.08 km) |
| Killarney to Saco (Maine) | 2,802.92 mi (4,510.86 km) |
| Killarney to Sacramento (California) | 4,962.78 mi (7,986.82 km) |
