| Glendora to Octeville | 5,458.04 mi (8,783.87 km) |
| Glendora to Oignies | 5,570.78 mi (8,965.31 km) |
| Glendora to Oissel | 5,562.67 mi (8,952.25 km) |
| Glendora to Olivet | 5,659.44 mi (9,108.00 km) |
| Glendora to Ollioules | 6,025.23 mi (9,696.67 km) |
| Glendora to Olonne-sur-Mer | 5,593.67 mi (9,002.14 km) |
| Glendora to Oloron-Sainte-Marie | 5,789.96 mi (9,318.04 km) |
| Glendora to Onet Village | 5,850.84 mi (9,416.02 km) |
| Glendora to Onnaing | 5,593.79 mi (9,002.34 km) |
| Glendora to Orange | 5,939.55 mi (9,558.78 km) |
| Glendora to Orchies | 5,578.44 mi (8,977.64 km) |
| Glendora to Orleans | 5,657.89 mi (9,105.50 km) |
| Glendora to Orly | 5,633.91 mi (9,066.90 km) |
| Glendora to Ormesson-sur-Marne | 5,636.69 mi (9,071.38 km) |
| Glendora to Orsay | 5,629.32 mi (9,059.52 km) |
