| Northdale to Oswego (Illinois) | 993.60 mi (1,599.04 km) |
| Northdale to Oswego (New York) | 1,111.99 mi (1,789.57 km) |
| Northdale to Otsego (Minnesota) | 1,332.52 mi (2,144.49 km) |
| Northdale to Ottawa (Illinois) | 982.14 mi (1,580.61 km) |
| Northdale to Ottawa (Kansas) | 1,030.50 mi (1,658.44 km) |
| Northdale to Ottumwa (Iowa) | 1,053.28 mi (1,695.10 km) |
| Northdale to Overland (Missouri) | 859.45 mi (1,383.16 km) |
| Northdale to Overland Park (Kansas) | 1,020.74 mi (1,642.73 km) |
| Northdale to Overlea (Maryland) | 850.51 mi (1,368.77 km) |
| Northdale to Oviedo (Florida) | 89.90 mi (144.68 km) |
| Northdale to Owasso (Oklahoma) | 960.05 mi (1,545.06 km) |
| Northdale to Owatonna (Minnesota) | 1,253.25 mi (2,016.92 km) |
| Northdale to Owensboro (Kentucky) | 717.78 mi (1,155.15 km) |
| Northdale to Owings Mills (Maryland) | 847.27 mi (1,363.55 km) |
| Northdale to Owosso (Michigan) | 1,032.89 mi (1,662.28 km) |
