| Siemianowice Slaskie to Octeville | 915.26 mi (1,472.97 km) |
| Siemianowice Slaskie to Oignies | 703.50 mi (1,132.17 km) |
| Siemianowice Slaskie to Oissel | 798.55 mi (1,285.15 km) |
| Siemianowice Slaskie to Olivet | 789.24 mi (1,270.16 km) |
| Siemianowice Slaskie to Ollioules | 792.18 mi (1,274.88 km) |
| Siemianowice Slaskie to Olonne-sur-Mer | 982.97 mi (1,581.94 km) |
| Siemianowice Slaskie to Oloron-Sainte-Marie | 1,044.48 mi (1,680.93 km) |
| Siemianowice Slaskie to Onet Village | 867.00 mi (1,395.30 km) |
| Siemianowice Slaskie to Onnaing | 677.51 mi (1,090.34 km) |
| Siemianowice Slaskie to Orange | 787.06 mi (1,266.66 km) |
| Siemianowice Slaskie to Orchies | 692.49 mi (1,114.45 km) |
| Siemianowice Slaskie to Orleans | 788.03 mi (1,268.21 km) |
| Siemianowice Slaskie to Orly | 750.30 mi (1,207.49 km) |
| Siemianowice Slaskie to Ormesson-sur-Marne | 743.16 mi (1,196.01 km) |
| Siemianowice Slaskie to Orsay | 760.15 mi (1,223.35 km) |
