| Musselburgh to Olympia Heights (Florida) | 4,278.56 mi (6,885.68 km) |
| Musselburgh to Omaha (Nebraska) | 4,033.30 mi (6,490.96 km) |
| Musselburgh to On Top of the World Designated Place (Florida) | 4,171.14 mi (6,712.80 km) |
| Musselburgh to Onalaska (Wisconsin) | 3,733.18 mi (6,007.98 km) |
| Musselburgh to Oneida (New York) | 3,214.22 mi (5,172.79 km) |
| Musselburgh to Oneonta (New York) | 3,221.17 mi (5,183.98 km) |
| Musselburgh to Ontario (California) | 5,132.35 mi (8,259.72 km) |
| Musselburgh to Ontario (Oregon) | 4,535.19 mi (7,298.68 km) |
| Musselburgh to Opa-locka (Florida) | 4,265.81 mi (6,865.15 km) |
| Musselburgh to Opelika (Alabama) | 4,099.34 mi (6,597.24 km) |
| Musselburgh to Opelousas (Louisiana) | 4,463.22 mi (7,182.86 km) |
| Musselburgh to Orange (California) | 5,152.69 mi (8,292.45 km) |
| Musselburgh to Orange (Texas) | 4,546.89 mi (7,317.52 km) |
| Musselburgh to Orange City (Florida) | 4,142.08 mi (6,666.04 km) |
| Musselburgh to Orangeburg (South Carolina) | 3,885.55 mi (6,253.18 km) |
