| Mishawaka to Olympia Heights (Florida) | 1,151.09 mi (1,852.50 km) |
| Mishawaka to Omaha (Nebraska) | 512.35 mi (824.55 km) |
| Mishawaka to On Top of the World Designated Place (Florida) | 895.20 mi (1,440.68 km) |
| Mishawaka to Onalaska (Wisconsin) | 297.83 mi (479.31 km) |
| Mishawaka to Oneida (New York) | 544.47 mi (876.25 km) |
| Mishawaka to Oneonta (New York) | 571.50 mi (919.74 km) |
| Mishawaka to Ontario (California) | 1,783.09 mi (2,869.61 km) |
| Mishawaka to Ontario (Oregon) | 1,559.92 mi (2,510.44 km) |
| Mishawaka to Opa-locka (Florida) | 1,140.79 mi (1,835.92 km) |
| Mishawaka to Opelika (Alabama) | 624.25 mi (1,004.63 km) |
| Mishawaka to Opelousas (Louisiana) | 837.56 mi (1,347.92 km) |
| Mishawaka to Orange (California) | 1,801.43 mi (2,899.13 km) |
| Mishawaka to Orange (Texas) | 903.33 mi (1,453.78 km) |
| Mishawaka to Orange City (Florida) | 921.76 mi (1,483.42 km) |
| Mishawaka to Orangeburg (South Carolina) | 635.07 mi (1,022.05 km) |
