| Mattoon to Octeville | 4,086.03 mi (6,575.83 km) |
| Mattoon to Oignies | 4,242.13 mi (6,827.05 km) |
| Mattoon to Oissel | 4,204.32 mi (6,766.19 km) |
| Mattoon to Olivet | 4,285.52 mi (6,896.88 km) |
| Mattoon to Ollioules | 4,617.82 mi (7,431.67 km) |
| Mattoon to Olonne-sur-Mer | 4,177.36 mi (6,722.80 km) |
| Mattoon to Oloron-Sainte-Marie | 4,338.57 mi (6,982.25 km) |
| Mattoon to Onet Village | 4,435.27 mi (7,137.88 km) |
| Mattoon to Onnaing | 4,268.17 mi (6,868.96 km) |
| Mattoon to Orange | 4,536.90 mi (7,301.44 km) |
| Mattoon to Orchies | 4,251.63 mi (6,842.33 km) |
| Mattoon to Orleans | 4,284.57 mi (6,895.34 km) |
| Mattoon to Orly | 4,275.82 mi (6,881.26 km) |
| Mattoon to Ormesson-sur-Marne | 4,280.21 mi (6,888.34 km) |
| Mattoon to Orsay | 4,269.15 mi (6,870.54 km) |
