| Ponte da Barca to Octeville | 631.26 mi (1,015.91 km) |
| Ponte da Barca to Oignies | 808.89 mi (1,301.79 km) |
| Ponte da Barca to Oissel | 693.92 mi (1,116.75 km) |
| Ponte da Barca to Olivet | 655.61 mi (1,055.10 km) |
| Ponte da Barca to Ollioules | 731.91 mi (1,177.90 km) |
| Ponte da Barca to Olonne-sur-Mer | 463.91 mi (746.58 km) |
| Ponte da Barca to Oloron-Sainte-Marie | 409.19 mi (658.53 km) |
| Ponte da Barca to Onet Village | 582.67 mi (937.72 km) |
| Ponte da Barca to Onnaing | 824.76 mi (1,327.32 km) |
| Ponte da Barca to Orange | 687.09 mi (1,105.77 km) |
| Ponte da Barca to Orchies | 817.21 mi (1,315.17 km) |
| Ponte da Barca to Orleans | 657.49 mi (1,058.13 km) |
| Ponte da Barca to Orly | 710.39 mi (1,143.26 km) |
| Ponte da Barca to Ormesson-sur-Marne | 717.38 mi (1,154.52 km) |
| Ponte da Barca to Orsay | 701.11 mi (1,128.32 km) |
