| Masku to Olympia Heights (Florida) | 5,083.85 mi (8,181.67 km) |
| Masku to Omaha (Nebraska) | 4,588.67 mi (7,384.76 km) |
| Masku to On Top of the World Designated Place (Florida) | 4,941.48 mi (7,952.54 km) |
| Masku to Onalaska (Wisconsin) | 4,309.66 mi (6,935.73 km) |
| Masku to Oneida (New York) | 3,930.11 mi (6,324.90 km) |
| Masku to Oneonta (New York) | 3,947.54 mi (6,352.94 km) |
| Masku to Ontario (California) | 5,514.08 mi (8,874.06 km) |
| Masku to Ontario (Oregon) | 4,851.92 mi (7,808.41 km) |
| Masku to Opa-locka (Florida) | 5,070.74 mi (8,160.56 km) |
| Masku to Opelika (Alabama) | 4,820.58 mi (7,757.97 km) |
| Masku to Opelousas (Louisiana) | 5,140.21 mi (8,272.36 km) |
| Masku to Orange (California) | 5,533.46 mi (8,905.25 km) |
| Masku to Orange (Texas) | 5,211.07 mi (8,386.40 km) |
| Masku to Orange City (Florida) | 4,921.32 mi (7,920.10 km) |
| Masku to Orangeburg (South Carolina) | 4,638.07 mi (7,464.26 km) |
