| Musselburgh to Orbetello | 1,128.93 mi (1,816.83 km) |
| Musselburgh to Oria | 1,419.01 mi (2,283.67 km) |
| Musselburgh to Oristano | 1,228.38 mi (1,976.88 km) |
| Musselburgh to Orta Nova | 1,315.36 mi (2,116.86 km) |
| Musselburgh to Orte | 1,157.84 mi (1,863.36 km) |
| Musselburgh to Ortona | 1,219.35 mi (1,962.36 km) |
| Musselburgh to Orvieto | 1,135.32 mi (1,827.13 km) |
| Musselburgh to Orzinuovi | 920.95 mi (1,482.12 km) |
| Musselburgh to Osimo | 1,128.51 mi (1,816.15 km) |
| Musselburgh to Ospitaletto | 915.72 mi (1,473.71 km) |
| Musselburgh to Ostuni | 1,404.23 mi (2,259.90 km) |
| Musselburgh to Ottaviano | 1,308.95 mi (2,106.55 km) |
| Musselburgh to Ovada | 933.52 mi (1,502.36 km) |
| Musselburgh to Ozieri | 1,193.31 mi (1,920.45 km) |
| Musselburgh to Paceco | 1,435.08 mi (2,309.54 km) |
