| Whitefish Bay to Octeville | 3,905.65 mi (6,285.53 km) |
| Whitefish Bay to Oignies | 4,054.12 mi (6,524.47 km) |
| Whitefish Bay to Oissel | 4,021.79 mi (6,472.45 km) |
| Whitefish Bay to Olivet | 4,106.59 mi (6,608.91 km) |
| Whitefish Bay to Ollioules | 4,447.76 mi (7,157.98 km) |
| Whitefish Bay to Olonne-sur-Mer | 4,007.21 mi (6,448.99 km) |
| Whitefish Bay to Oloron-Sainte-Marie | 4,177.86 mi (6,723.61 km) |
| Whitefish Bay to Onet Village | 4,266.21 mi (6,865.80 km) |
| Whitefish Bay to Onnaing | 4,079.74 mi (6,565.71 km) |
| Whitefish Bay to Orange | 4,365.39 mi (7,025.41 km) |
| Whitefish Bay to Orchies | 4,063.33 mi (6,539.30 km) |
| Whitefish Bay to Orleans | 4,105.50 mi (6,607.17 km) |
| Whitefish Bay to Orly | 4,093.62 mi (6,588.05 km) |
| Whitefish Bay to Ormesson-sur-Marne | 4,097.72 mi (6,594.64 km) |
| Whitefish Bay to Orsay | 4,087.33 mi (6,577.93 km) |
