| Tallaght to Oswego (Illinois) | 3,693.65 mi (5,944.35 km) |
| Tallaght to Oswego (New York) | 3,155.78 mi (5,078.74 km) |
| Tallaght to Otsego (Minnesota) | 3,722.28 mi (5,990.43 km) |
| Tallaght to Ottawa (Illinois) | 3,727.60 mi (5,998.99 km) |
| Tallaght to Ottawa (Kansas) | 4,104.11 mi (6,604.92 km) |
| Tallaght to Ottumwa (Iowa) | 3,879.12 mi (6,242.84 km) |
| Tallaght to Overland (Missouri) | 3,913.60 mi (6,298.32 km) |
| Tallaght to Overland Park (Kansas) | 4,068.22 mi (6,547.16 km) |
| Tallaght to Overlea (Maryland) | 3,336.82 mi (5,370.10 km) |
| Tallaght to Oviedo (Florida) | 4,045.54 mi (6,510.67 km) |
| Tallaght to Owasso (Oklahoma) | 4,241.49 mi (6,826.02 km) |
| Tallaght to Owatonna (Minnesota) | 3,763.13 mi (6,056.17 km) |
| Tallaght to Owensboro (Kentucky) | 3,832.98 mi (6,168.59 km) |
| Tallaght to Owings Mills (Maryland) | 3,345.68 mi (5,384.35 km) |
| Tallaght to Owosso (Michigan) | 3,474.51 mi (5,591.69 km) |
