| Waltham to Oak Grove (South Carolina) | 790.76 mi (1,272.61 km) |
| Waltham to Oak Harbor (Washington) | 2,481.15 mi (3,993.03 km) |
| Waltham to Oak Hills (Oregon) | 2,530.85 mi (4,073.01 km) |
| Waltham to Oak Lawn (Illinois) | 847.02 mi (1,363.14 km) |
| Waltham to Oak Park (California) | 2,603.90 mi (4,190.57 km) |
| Waltham to Oak Park (Illinois) | 847.18 mi (1,363.41 km) |
| Waltham to Oak Park (Michigan) | 608.47 mi (979.24 km) |
| Waltham to Oak Ridge (Florida) | 1,117.26 mi (1,798.05 km) |
| Waltham to Oak Ridge (New Jersey) | 192.25 mi (309.40 km) |
| Waltham to Oak Ridge (Tennessee) | 826.66 mi (1,330.38 km) |
| Waltham to Oakdale (California) | 2,604.69 mi (4,191.84 km) |
| Waltham to Oakdale (Minnesota) | 1,096.59 mi (1,764.80 km) |
| Waltham to Oakland (California) | 2,672.66 mi (4,301.22 km) |
| Waltham to Oakland (New Jersey) | 180.87 mi (291.08 km) |
| Waltham to Oakland Park (Florida) | 1,228.41 mi (1,976.94 km) |
