| Killarney to Desert Hot Springs (California) | 5,049.18 mi (8,125.87 km) |
| Killarney to DeSoto (Texas) | 4,375.99 mi (7,042.47 km) |
| Killarney to Destin (Florida) | 4,059.77 mi (6,533.57 km) |
| Killarney to Destrehan (Louisiana) | 4,243.26 mi (6,828.86 km) |
| Killarney to Detroit (Michigan) | 3,365.49 mi (5,416.23 km) |
| Killarney to Diamond Bar (California) | 5,091.36 mi (8,193.76 km) |
| Killarney to Diamond Springs (California) | 4,935.46 mi (7,942.86 km) |
| Killarney to Dickinson (North Dakota) | 3,904.99 mi (6,284.48 km) |
| Killarney to Dickinson (Texas) | 4,461.71 mi (7,180.42 km) |
| Killarney to Dickson (Tennessee) | 3,823.21 mi (6,152.86 km) |
| Killarney to Difficult Run (Virginia) | 3,281.12 mi (5,280.45 km) |
| Killarney to Dinuba (California) | 5,005.81 mi (8,056.08 km) |
| Killarney to Discovery Bay (California) | 5,003.61 mi (8,052.54 km) |
| Killarney to Dix Hills (New York) | 3,032.84 mi (4,880.89 km) |
| Killarney to Dixon (California) | 4,981.00 mi (8,016.15 km) |
