| Walla Walla to Octeville | 4,816.58 mi (7,751.54 km) |
| Walla Walla to Oignies | 4,904.58 mi (7,893.16 km) |
| Walla Walla to Oissel | 4,911.32 mi (7,904.00 km) |
| Walla Walla to Olivet | 5,013.75 mi (8,068.85 km) |
| Walla Walla to Ollioules | 5,389.02 mi (8,672.79 km) |
| Walla Walla to Olonne-sur-Mer | 4,973.72 mi (8,004.43 km) |
| Walla Walla to Oloron-Sainte-Marie | 5,187.14 mi (8,347.89 km) |
| Walla Walla to Onet Village | 5,223.77 mi (8,406.85 km) |
| Walla Walla to Onnaing | 4,925.59 mi (7,926.96 km) |
| Walla Walla to Orange | 5,302.70 mi (8,533.86 km) |
| Walla Walla to Orchies | 4,911.18 mi (7,903.79 km) |
| Walla Walla to Orleans | 5,011.92 mi (8,065.90 km) |
| Walla Walla to Orly | 4,980.61 mi (8,015.51 km) |
| Walla Walla to Ormesson-sur-Marne | 4,982.50 mi (8,018.56 km) |
| Walla Walla to Orsay | 4,977.20 mi (8,010.02 km) |
