| Trencin to Octeville | 886.33 mi (1,426.41 km) |
| Trencin to Oignies | 680.08 mi (1,094.48 km) |
| Trencin to Oissel | 765.33 mi (1,231.69 km) |
| Trencin to Olivet | 742.52 mi (1,194.96 km) |
| Trencin to Ollioules | 705.83 mi (1,135.93 km) |
| Trencin to Olonne-sur-Mer | 932.40 mi (1,500.56 km) |
| Trencin to Oloron-Sainte-Marie | 973.64 mi (1,566.92 km) |
| Trencin to Onet Village | 794.85 mi (1,279.18 km) |
| Trencin to Onnaing | 653.18 mi (1,051.20 km) |
| Trencin to Orange | 708.16 mi (1,139.68 km) |
| Trencin to Orchies | 669.11 mi (1,076.82 km) |
| Trencin to Orleans | 741.61 mi (1,193.50 km) |
| Trencin to Orly | 710.53 mi (1,143.49 km) |
| Trencin to Ormesson-sur-Marne | 703.62 mi (1,132.36 km) |
| Trencin to Orsay | 720.20 mi (1,159.05 km) |
