| Fort Smith to Octeville | 4,521.48 mi (7,276.62 km) |
| Fort Smith to Oignies | 4,676.56 mi (7,526.20 km) |
| Fort Smith to Oissel | 4,639.57 mi (7,466.67 km) |
| Fort Smith to Olivet | 4,721.10 mi (7,597.87 km) |
| Fort Smith to Ollioules | 5,053.44 mi (8,132.73 km) |
| Fort Smith to Olonne-sur-Mer | 4,613.00 mi (7,423.91 km) |
| Fort Smith to Oloron-Sainte-Marie | 4,773.29 mi (7,681.87 km) |
| Fort Smith to Onet Village | 4,870.85 mi (7,838.87 km) |
| Fort Smith to Onnaing | 4,702.53 mi (7,567.98 km) |
| Fort Smith to Orange | 4,972.58 mi (8,002.60 km) |
| Fort Smith to Orchies | 4,686.00 mi (7,541.40 km) |
| Fort Smith to Orleans | 4,720.13 mi (7,596.32 km) |
| Fort Smith to Orly | 4,711.12 mi (7,581.81 km) |
| Fort Smith to Ormesson-sur-Marne | 4,715.48 mi (7,588.83 km) |
| Fort Smith to Orsay | 4,704.49 mi (7,571.15 km) |
