| Amersfoort to Olympia Heights (Florida) | 4,658.33 mi (7,496.86 km) |
| Amersfoort to Omaha (Nebraska) | 4,461.78 mi (7,180.54 km) |
| Amersfoort to On Top of the World Designated Place (Florida) | 4,563.84 mi (7,344.79 km) |
| Amersfoort to Onalaska (Wisconsin) | 4,160.89 mi (6,696.30 km) |
| Amersfoort to Oneida (New York) | 3,625.93 mi (5,835.37 km) |
| Amersfoort to Oneonta (New York) | 3,630.63 mi (5,842.94 km) |
| Amersfoort to Ontario (California) | 5,561.60 mi (8,950.54 km) |
| Amersfoort to Ontario (Oregon) | 4,959.65 mi (7,981.78 km) |
| Amersfoort to Opa-locka (Florida) | 4,645.79 mi (7,476.68 km) |
| Amersfoort to Opelika (Alabama) | 4,505.63 mi (7,251.11 km) |
| Amersfoort to Opelousas (Louisiana) | 4,877.02 mi (7,848.80 km) |
| Amersfoort to Orange (California) | 5,581.93 mi (8,983.24 km) |
| Amersfoort to Orange (Texas) | 4,962.59 mi (7,986.51 km) |
| Amersfoort to Orange City (Florida) | 4,532.07 mi (7,293.66 km) |
| Amersfoort to Orangeburg (South Carolina) | 4,284.99 mi (6,896.03 km) |
