| Wallingford Center to Octeville | 3,359.72 mi (5,406.95 km) |
| Wallingford Center to Oignies | 3,533.07 mi (5,685.93 km) |
| Wallingford Center to Oissel | 3,481.82 mi (5,603.45 km) |
| Wallingford Center to Olivet | 3,553.78 mi (5,719.26 km) |
| Wallingford Center to Ollioules | 3,864.78 mi (6,219.75 km) |
| Wallingford Center to Olonne-sur-Mer | 3,428.01 mi (5,516.85 km) |
| Wallingford Center to Oloron-Sainte-Marie | 3,570.86 mi (5,746.74 km) |
| Wallingford Center to Onet Village | 3,681.69 mi (5,925.11 km) |
| Wallingford Center to Onnaing | 3,559.91 mi (5,729.11 km) |
| Wallingford Center to Orange | 3,787.27 mi (6,095.03 km) |
| Wallingford Center to Orchies | 3,543.21 mi (5,702.25 km) |
| Wallingford Center to Orleans | 3,553.13 mi (5,718.21 km) |
| Wallingford Center to Orly | 3,551.77 mi (5,716.03 km) |
| Wallingford Center to Ormesson-sur-Marne | 3,556.83 mi (5,724.17 km) |
| Wallingford Center to Orsay | 3,544.28 mi (5,703.96 km) |
