| Munster to Olympia Heights (Florida) | 4,753.86 mi (7,650.60 km) |
| Munster to Omaha (Nebraska) | 4,546.40 mi (7,316.73 km) |
| Munster to On Top of the World Designated Place (Florida) | 4,658.43 mi (7,497.02 km) |
| Munster to Onalaska (Wisconsin) | 4,246.25 mi (6,833.68 km) |
| Munster to Oneida (New York) | 3,717.61 mi (5,982.92 km) |
| Munster to Oneonta (New York) | 3,722.78 mi (5,991.23 km) |
| Munster to Ontario (California) | 5,637.09 mi (9,072.02 km) |
| Munster to Ontario (Oregon) | 5,029.68 mi (8,094.49 km) |
| Munster to Opa-locka (Florida) | 4,741.31 mi (7,630.40 km) |
| Munster to Opelika (Alabama) | 4,598.47 mi (7,400.52 km) |
| Munster to Opelousas (Louisiana) | 4,968.36 mi (7,995.81 km) |
| Munster to Orange (California) | 5,657.38 mi (9,104.67 km) |
| Munster to Orange (Texas) | 5,053.45 mi (8,132.74 km) |
| Munster to Orange City (Florida) | 4,626.89 mi (7,446.27 km) |
| Munster to Orangeburg (South Carolina) | 4,378.81 mi (7,047.01 km) |
