| Malmedy to Olympia Heights (Florida) | 4,713.73 mi (7,586.01 km) |
| Malmedy to Omaha (Nebraska) | 4,554.11 mi (7,329.14 km) |
| Malmedy to On Top of the World Designated Place (Florida) | 4,626.50 mi (7,445.63 km) |
| Malmedy to Onalaska (Wisconsin) | 4,252.02 mi (6,842.96 km) |
| Malmedy to Oneida (New York) | 3,701.87 mi (5,957.59 km) |
| Malmedy to Oneonta (New York) | 3,704.97 mi (5,962.57 km) |
| Malmedy to Ontario (California) | 5,666.22 mi (9,118.91 km) |
| Malmedy to Ontario (Oregon) | 5,069.59 mi (8,158.71 km) |
| Malmedy to Opa-locka (Florida) | 4,701.32 mi (7,566.04 km) |
| Malmedy to Opelika (Alabama) | 4,576.87 mi (7,365.76 km) |
| Malmedy to Opelousas (Louisiana) | 4,953.42 mi (7,971.76 km) |
| Malmedy to Orange (California) | 5,686.58 mi (9,151.66 km) |
| Malmedy to Orange (Texas) | 5,040.46 mi (8,111.84 km) |
| Malmedy to Orange City (Florida) | 4,593.20 mi (7,392.04 km) |
| Malmedy to Orangeburg (South Carolina) | 4,352.02 mi (7,003.90 km) |
