| Acton to Odessa (Texas) | 5,000.29 mi (8,047.19 km) |
| Acton to Ogden (Utah) | 4,833.09 mi (7,778.10 km) |
| Acton to Oildale (California) | 5,381.72 mi (8,661.05 km) |
| Acton to Ojus (Florida) | 4,411.16 mi (7,099.07 km) |
| Acton to Okemos (Michigan) | 3,780.85 mi (6,084.69 km) |
| Acton to Oklahoma City (Oklahoma) | 4,631.17 mi (7,453.14 km) |
| Acton to Okmulgee (Oklahoma) | 4,566.63 mi (7,349.28 km) |
| Acton to Olathe (Kansas) | 4,357.55 mi (7,012.79 km) |
| Acton to Old Jamestown (Missouri) | 4,187.63 mi (6,739.33 km) |
| Acton to Oldsmar (Florida) | 4,411.54 mi (7,099.68 km) |
| Acton to Olean (New York) | 3,574.26 mi (5,752.22 km) |
| Acton to Olive Branch (Mississippi) | 4,360.36 mi (7,017.32 km) |
| Acton to Olivehurst (California) | 5,248.45 mi (8,446.56 km) |
| Acton to Olney (Maryland) | 3,649.31 mi (5,872.99 km) |
| Acton to Olympia (Washington) | 4,827.30 mi (7,768.79 km) |
