| Michigan City to Octeville | 3,926.51 mi (6,319.10 km) |
| Michigan City to Oignies | 4,079.86 mi (6,565.89 km) |
| Michigan City to Oissel | 4,044.03 mi (6,508.23 km) |
| Michigan City to Olivet | 4,126.61 mi (6,641.14 km) |
| Michigan City to Ollioules | 4,462.54 mi (7,181.76 km) |
| Michigan City to Olonne-sur-Mer | 4,021.89 mi (6,472.60 km) |
| Michigan City to Oloron-Sainte-Marie | 4,187.10 mi (6,738.49 km) |
| Michigan City to Onet Village | 4,280.33 mi (6,888.53 km) |
| Michigan City to Onnaing | 4,105.76 mi (6,607.58 km) |
| Michigan City to Orange | 4,381.00 mi (7,050.53 km) |
| Michigan City to Orchies | 4,089.25 mi (6,581.02 km) |
| Michigan City to Orleans | 4,125.61 mi (6,639.53 km) |
| Michigan City to Orly | 4,115.67 mi (6,623.53 km) |
| Michigan City to Ormesson-sur-Marne | 4,119.96 mi (6,630.43 km) |
| Michigan City to Orsay | 4,109.15 mi (6,613.03 km) |
