| Cities | Distance |
|---|---|
| Killarney to Oegstgeest | 591.96 mi (952.67 km) |
| Killarney to Oirschot | 633.04 mi (1,018.79 km) |
| Killarney to Oisterwijk | 627.90 mi (1,010.50 km) |
| Killarney to Oldebroek | 650.99 mi (1,047.66 km) |
| Killarney to Oldenzaal | 695.14 mi (1,118.72 km) |
| Killarney to Ommen | 672.38 mi (1,082.10 km) |
| Killarney to Oosterend | 656.52 mi (1,056.56 km) |
| Killarney to Oosterhout | 612.72 mi (986.09 km) |
| Killarney to Oosterwolde | 665.88 mi (1,071.64 km) |
| Killarney to Oostzaan | 608.32 mi (978.99 km) |
| Killarney to Opmeer | 610.33 mi (982.23 km) |
| Killarney to Oss | 639.51 mi (1,029.19 km) |
| Killarney to Oud-Beijerland | 591.74 mi (952.31 km) |
| Killarney to Oudenbosch | 599.14 mi (964.23 km) |
| Killarney to Oudewater | 609.93 mi (981.59 km) |