| Farmington Hills to Olympia Heights (Florida) | 1,170.89 mi (1,884.37 km) |
| Farmington Hills to Omaha (Nebraska) | 656.96 mi (1,057.28 km) |
| Farmington Hills to On Top of the World Designated Place (Florida) | 926.48 mi (1,491.02 km) |
| Farmington Hills to Onalaska (Wisconsin) | 406.03 mi (653.44 km) |
| Farmington Hills to Oneida (New York) | 393.21 mi (632.82 km) |
| Farmington Hills to Oneonta (New York) | 423.38 mi (681.36 km) |
| Farmington Hills to Ontario (California) | 1,931.56 mi (3,108.55 km) |
| Farmington Hills to Ontario (Oregon) | 1,682.34 mi (2,707.46 km) |
| Farmington Hills to Opa-locka (Florida) | 1,159.58 mi (1,866.16 km) |
| Farmington Hills to Opelika (Alabama) | 687.54 mi (1,106.50 km) |
| Farmington Hills to Opelousas (Louisiana) | 956.16 mi (1,538.79 km) |
| Farmington Hills to Orange (California) | 1,950.10 mi (3,138.38 km) |
| Farmington Hills to Orange (Texas) | 1,029.69 mi (1,657.12 km) |
| Farmington Hills to Orange City (Florida) | 943.52 mi (1,518.44 km) |
| Farmington Hills to Orangeburg (South Carolina) | 636.14 mi (1,023.77 km) |
