| Lake Morton-Berrydale to Octeville | 4,855.02 mi (7,813.40 km) |
| Lake Morton-Berrydale to Oignies | 4,932.68 mi (7,938.38 km) |
| Lake Morton-Berrydale to Oissel | 4,945.41 mi (7,958.88 km) |
| Lake Morton-Berrydale to Olivet | 5,049.58 mi (8,126.52 km) |
| Lake Morton-Berrydale to Ollioules | 5,426.73 mi (8,733.48 km) |
| Lake Morton-Berrydale to Olonne-sur-Mer | 5,019.44 mi (8,078.01 km) |
| Lake Morton-Berrydale to Oloron-Sainte-Marie | 5,237.91 mi (8,429.60 km) |
| Lake Morton-Berrydale to Onet Village | 5,265.68 mi (8,474.29 km) |
| Lake Morton-Berrydale to Onnaing | 4,952.75 mi (7,970.68 km) |
| Lake Morton-Berrydale to Orange | 5,340.57 mi (8,594.81 km) |
| Lake Morton-Berrydale to Orchies | 4,938.81 mi (7,948.25 km) |
| Lake Morton-Berrydale to Orleans | 5,047.65 mi (8,123.41 km) |
| Lake Morton-Berrydale to Orly | 5,013.59 mi (8,068.60 km) |
| Lake Morton-Berrydale to Ormesson-sur-Marne | 5,015.12 mi (8,071.06 km) |
| Lake Morton-Berrydale to Orsay | 5,010.67 mi (8,063.90 km) |
