| Alum Rock to Octeville | 5,406.74 mi (8,701.30 km) |
| Alum Rock to Oignies | 5,504.69 mi (8,858.93 km) |
| Alum Rock to Oissel | 5,505.68 mi (8,860.53 km) |
| Alum Rock to Olivet | 5,606.06 mi (9,022.08 km) |
| Alum Rock to Ollioules | 5,978.27 mi (9,621.10 km) |
| Alum Rock to Olonne-sur-Mer | 5,555.14 mi (8,940.13 km) |
| Alum Rock to Oloron-Sainte-Marie | 5,761.53 mi (9,272.28 km) |
| Alum Rock to Onet Village | 5,808.84 mi (9,348.43 km) |
| Alum Rock to Onnaing | 5,526.48 mi (8,894.01 km) |
| Alum Rock to Orange | 5,892.02 mi (9,482.30 km) |
| Alum Rock to Orchies | 5,511.70 mi (8,870.22 km) |
| Alum Rock to Orleans | 5,604.34 mi (9,019.31 km) |
| Alum Rock to Orly | 5,575.88 mi (8,973.52 km) |
| Alum Rock to Ormesson-sur-Marne | 5,578.13 mi (8,977.13 km) |
| Alum Rock to Orsay | 5,572.00 mi (8,967.27 km) |
