| Tukums to Octeville | 1,133.90 mi (1,824.84 km) |
| Tukums to Oignies | 933.49 mi (1,502.31 km) |
| Tukums to Oissel | 1,048.06 mi (1,686.68 km) |
| Tukums to Olivet | 1,086.96 mi (1,749.30 km) |
| Tukums to Ollioules | 1,218.29 mi (1,960.64 km) |
| Tukums to Olonne-sur-Mer | 1,275.34 mi (2,052.47 km) |
| Tukums to Oloron-Sainte-Marie | 1,406.19 mi (2,263.05 km) |
| Tukums to Onet Village | 1,243.14 mi (2,000.64 km) |
| Tukums to Onnaing | 915.58 mi (1,473.48 km) |
| Tukums to Orange | 1,189.89 mi (1,914.94 km) |
| Tukums to Orchies | 924.41 mi (1,487.70 km) |
| Tukums to Orleans | 1,084.86 mi (1,745.91 km) |
| Tukums to Orly | 1,029.33 mi (1,656.55 km) |
| Tukums to Ormesson-sur-Marne | 1,022.44 mi (1,645.46 km) |
| Tukums to Orsay | 1,038.45 mi (1,671.23 km) |
