| Michigan City to Odessa (Texas) | 1,089.94 mi (1,754.08 km) |
| Michigan City to Ogden (Utah) | 1,295.27 mi (2,084.54 km) |
| Michigan City to Oildale (California) | 1,779.54 mi (2,863.89 km) |
| Michigan City to Ojus (Florida) | 1,153.53 mi (1,856.43 km) |
| Michigan City to Okemos (Michigan) | 143.29 mi (230.60 km) |
| Michigan City to Oklahoma City (Oklahoma) | 717.73 mi (1,155.08 km) |
| Michigan City to Okmulgee (Oklahoma) | 647.74 mi (1,042.44 km) |
| Michigan City to Olathe (Kansas) | 462.01 mi (743.54 km) |
| Michigan City to Old Jamestown (Missouri) | 267.79 mi (430.97 km) |
| Michigan City to Oldsmar (Florida) | 972.93 mi (1,565.77 km) |
| Michigan City to Olean (New York) | 434.50 mi (699.26 km) |
| Michigan City to Olive Branch (Mississippi) | 493.31 mi (793.90 km) |
| Michigan City to Olivehurst (California) | 1,821.95 mi (2,932.15 km) |
| Michigan City to Olney (Maryland) | 544.50 mi (876.28 km) |
| Michigan City to Olympia (Washington) | 1,800.23 mi (2,897.20 km) |
