| Portage to Octeville | 3,854.17 mi (6,202.68 km) |
| Portage to Oignies | 4,008.26 mi (6,450.68 km) |
| Portage to Oissel | 3,971.88 mi (6,392.12 km) |
| Portage to Olivet | 4,054.14 mi (6,524.51 km) |
| Portage to Ollioules | 4,389.43 mi (7,064.10 km) |
| Portage to Olonne-sur-Mer | 3,948.79 mi (6,354.96 km) |
| Portage to Oloron-Sainte-Marie | 4,113.54 mi (6,620.10 km) |
| Portage to Onet Village | 4,207.17 mi (6,770.78 km) |
| Portage to Onnaing | 4,034.21 mi (6,492.43 km) |
| Portage to Orange | 4,307.98 mi (6,933.02 km) |
| Portage to Orchies | 4,017.69 mi (6,465.85 km) |
| Portage to Orleans | 4,053.15 mi (6,522.91 km) |
| Portage to Orly | 4,043.49 mi (6,507.36 km) |
| Portage to Ormesson-sur-Marne | 4,047.80 mi (6,514.30 km) |
| Portage to Orsay | 4,036.93 mi (6,496.81 km) |
