| Killarney to Ridgeland (Mississippi) | 4,112.37 mi (6,618.22 km) |
| Killarney to Ridgewood (New Jersey) | 3,057.59 mi (4,920.72 km) |
| Killarney to Rifle (Colorado) | 4,441.85 mi (7,148.47 km) |
| Killarney to Rincon (Georgia) | 3,748.05 mi (6,031.90 km) |
| Killarney to Ringwood (New Jersey) | 3,059.12 mi (4,923.18 km) |
| Killarney to Río Grande (Puerto Rico) | 3,807.08 mi (6,126.91 km) |
| Killarney to Rio Grande City (Texas) | 4,773.18 mi (7,681.69 km) |
| Killarney to Rio Linda (California) | 4,955.29 mi (7,974.77 km) |
| Killarney to Rio Rancho (New Mexico) | 4,620.54 mi (7,436.04 km) |
| Killarney to Rio Rico (Arizona) | 4,980.37 mi (8,015.13 km) |
| Killarney to Ripon (California) | 4,997.43 mi (8,042.59 km) |
| Killarney to River Edge (New Jersey) | 3,056.83 mi (4,919.49 km) |
| Killarney to River Falls (Wisconsin) | 3,628.58 mi (5,839.63 km) |
| Killarney to River Forest (Illinois) | 3,574.31 mi (5,752.30 km) |
| Killarney to River Grove (Illinois) | 3,573.74 mi (5,751.38 km) |
