| Ypsilanti to Olympia (Washington) | 1,938.03 mi (3,118.96 km) |
| Ypsilanti to Olympia Heights (Florida) | 1,156.55 mi (1,861.29 km) |
| Ypsilanti to Omaha (Nebraska) | 643.81 mi (1,036.11 km) |
| Ypsilanti to On Top of the World Designated Place (Florida) | 910.81 mi (1,465.81 km) |
| Ypsilanti to Onalaska (Wisconsin) | 399.28 mi (642.58 km) |
| Ypsilanti to Oneida (New York) | 408.29 mi (657.08 km) |
| Ypsilanti to Oneonta (New York) | 436.86 mi (703.07 km) |
| Ypsilanti to Ontario (California) | 1,917.45 mi (3,085.83 km) |
| Ypsilanti to Ontario (Oregon) | 1,674.79 mi (2,695.31 km) |
| Ypsilanti to Opa-locka (Florida) | 1,145.33 mi (1,843.23 km) |
| Ypsilanti to Opelika (Alabama) | 669.03 mi (1,076.70 km) |
| Ypsilanti to Opelousas (Louisiana) | 935.36 mi (1,505.32 km) |
| Ypsilanti to Orange (California) | 1,935.91 mi (3,115.55 km) |
| Ypsilanti to Orange (Texas) | 1,008.85 mi (1,623.58 km) |
| Ypsilanti to Orange City (Florida) | 928.76 mi (1,494.70 km) |
