| Melgaco to Octeville | 608.38 mi (979.10 km) |
| Melgaco to Oignies | 787.00 mi (1,266.55 km) |
| Melgaco to Oissel | 671.99 mi (1,081.46 km) |
| Melgaco to Olivet | 635.11 mi (1,022.11 km) |
| Melgaco to Ollioules | 720.09 mi (1,158.88 km) |
| Melgaco to Olonne-sur-Mer | 442.73 mi (712.51 km) |
| Melgaco to Oloron-Sainte-Marie | 396.14 mi (637.53 km) |
| Melgaco to Onet Village | 567.79 mi (913.77 km) |
| Melgaco to Onnaing | 803.08 mi (1,292.43 km) |
| Melgaco to Orange | 673.25 mi (1,083.50 km) |
| Melgaco to Orchies | 795.38 mi (1,280.04 km) |
| Melgaco to Orleans | 636.96 mi (1,025.08 km) |
| Melgaco to Orly | 689.35 mi (1,109.40 km) |
| Melgaco to Ormesson-sur-Marne | 696.37 mi (1,120.69 km) |
| Melgaco to Orsay | 680.02 mi (1,094.38 km) |
