| Galesburg to Octeville | 4,099.12 mi (6,596.89 km) |
| Galesburg to Oignies | 4,248.84 mi (6,837.85 km) |
| Galesburg to Oissel | 4,215.66 mi (6,784.45 km) |
| Galesburg to Olivet | 4,299.83 mi (6,919.91 km) |
| Galesburg to Ollioules | 4,639.23 mi (7,466.12 km) |
| Galesburg to Olonne-sur-Mer | 4,198.59 mi (6,756.98 km) |
| Galesburg to Oloron-Sainte-Marie | 4,366.94 mi (7,027.90 km) |
| Galesburg to Onet Village | 4,457.41 mi (7,173.50 km) |
| Galesburg to Onnaing | 4,274.53 mi (6,879.19 km) |
| Galesburg to Orange | 4,557.16 mi (7,334.05 km) |
| Galesburg to Orchies | 4,258.09 mi (6,852.74 km) |
| Galesburg to Orleans | 4,298.77 mi (6,918.20 km) |
| Galesburg to Orly | 4,287.45 mi (6,899.98 km) |
| Galesburg to Ormesson-sur-Marne | 4,291.60 mi (6,906.66 km) |
| Galesburg to Orsay | 4,281.10 mi (6,889.76 km) |
