| Plock to Octeville | 944.30 mi (1,519.70 km) |
| Plock to Oignies | 730.91 mi (1,176.28 km) |
| Plock to Oissel | 837.21 mi (1,347.36 km) |
| Plock to Olivet | 848.28 mi (1,365.18 km) |
| Plock to Ollioules | 911.04 mi (1,466.18 km) |
| Plock to Olonne-sur-Mer | 1,043.44 mi (1,679.26 km) |
| Plock to Oloron-Sainte-Marie | 1,135.49 mi (1,827.39 km) |
| Plock to Onet Village | 962.58 mi (1,549.12 km) |
| Plock to Onnaing | 707.36 mi (1,138.39 km) |
| Plock to Orange | 894.36 mi (1,439.34 km) |
| Plock to Orchies | 720.30 mi (1,159.21 km) |
| Plock to Orleans | 846.65 mi (1,362.55 km) |
| Plock to Orly | 800.21 mi (1,287.82 km) |
| Plock to Ormesson-sur-Marne | 792.99 mi (1,276.19 km) |
| Plock to Orsay | 810.02 mi (1,303.60 km) |
