| Acton to Oswego (Illinois) | 3,977.91 mi (6,401.83 km) |
| Acton to Oswego (New York) | 3,438.71 mi (5,534.06 km) |
| Acton to Otsego (Minnesota) | 4,004.87 mi (6,445.21 km) |
| Acton to Ottawa (Illinois) | 4,011.86 mi (6,456.47 km) |
| Acton to Ottawa (Kansas) | 4,388.25 mi (7,062.21 km) |
| Acton to Ottumwa (Iowa) | 4,163.24 mi (6,700.08 km) |
| Acton to Overland (Missouri) | 4,197.77 mi (6,755.66 km) |
| Acton to Overland Park (Kansas) | 4,352.38 mi (7,004.48 km) |
| Acton to Overlea (Maryland) | 3,616.98 mi (5,820.97 km) |
| Acton to Oviedo (Florida) | 4,318.96 mi (6,950.70 km) |
| Acton to Owasso (Oklahoma) | 4,525.75 mi (7,283.49 km) |
| Acton to Owatonna (Minnesota) | 4,046.33 mi (6,511.93 km) |
| Acton to Owensboro (Kentucky) | 4,116.45 mi (6,624.78 km) |
| Acton to Owings Mills (Maryland) | 3,626.03 mi (5,835.53 km) |
| Acton to Owosso (Michigan) | 3,758.69 mi (6,049.03 km) |
