| Northampton to Oak Harbor (Washington) | 4,693.19 mi (7,552.95 km) |
| Northampton to Oak Hills (Oregon) | 4,856.80 mi (7,816.26 km) |
| Northampton to Oak Lawn (Illinois) | 3,908.00 mi (6,289.31 km) |
| Northampton to Oak Park (California) | 5,391.87 mi (8,677.38 km) |
| Northampton to Oak Park (Illinois) | 3,901.26 mi (6,278.47 km) |
| Northampton to Oak Park (Michigan) | 3,699.01 mi (5,952.98 km) |
| Northampton to Oak Ridge (Florida) | 4,301.56 mi (6,922.70 km) |
| Northampton to Oak Ridge (New Jersey) | 3,420.57 mi (5,504.88 km) |
| Northampton to Oak Ridge (Tennessee) | 4,047.95 mi (6,514.54 km) |
| Northampton to Oakdale (California) | 5,249.49 mi (8,448.25 km) |
| Northampton to Oakdale (Minnesota) | 3,945.18 mi (6,349.16 km) |
| Northampton to Oakland (California) | 5,288.42 mi (8,510.89 km) |
| Northampton to Oakland (New Jersey) | 3,410.29 mi (5,488.33 km) |
| Northampton to Oakland Park (Florida) | 4,365.40 mi (7,025.43 km) |
| Northampton to Oakleaf Plantation (Florida) | 4,233.54 mi (6,813.22 km) |
