| Richardson to Octeville | 4,732.37 mi (7,616.01 km) |
| Richardson to Oignies | 4,888.09 mi (7,866.62 km) |
| Richardson to Oissel | 4,850.66 mi (7,806.38 km) |
| Richardson to Olivet | 4,931.80 mi (7,936.96 km) |
| Richardson to Ollioules | 5,262.83 mi (8,469.71 km) |
| Richardson to Olonne-sur-Mer | 4,822.53 mi (7,761.12 km) |
| Richardson to Oloron-Sainte-Marie | 4,981.09 mi (8,016.29 km) |
| Richardson to Onet Village | 5,080.12 mi (8,175.67 km) |
| Richardson to Onnaing | 4,914.08 mi (7,908.44 km) |
| Richardson to Orange | 5,182.23 mi (8,339.99 km) |
| Richardson to Orchies | 4,897.55 mi (7,881.84 km) |
| Richardson to Orleans | 4,930.85 mi (7,935.43 km) |
| Richardson to Orly | 4,922.17 mi (7,921.46 km) |
| Richardson to Ormesson-sur-Marne | 4,926.56 mi (7,928.53 km) |
| Richardson to Orsay | 4,915.50 mi (7,910.74 km) |
