| Smiltene to Octeville | 1,241.65 mi (1,998.25 km) |
| Smiltene to Oignies | 1,041.30 mi (1,675.81 km) |
| Smiltene to Oissel | 1,155.83 mi (1,860.13 km) |
| Smiltene to Olivet | 1,193.92 mi (1,921.43 km) |
| Smiltene to Ollioules | 1,316.28 mi (2,118.35 km) |
| Smiltene to Olonne-sur-Mer | 1,382.79 mi (2,225.38 km) |
| Smiltene to Oloron-Sainte-Marie | 1,511.12 mi (2,431.92 km) |
| Smiltene to Onet Village | 1,346.58 mi (2,167.11 km) |
| Smiltene to Onnaing | 1,023.31 mi (1,646.85 km) |
| Smiltene to Orange | 1,290.66 mi (2,077.12 km) |
| Smiltene to Orchies | 1,032.20 mi (1,661.17 km) |
| Smiltene to Orleans | 1,191.84 mi (1,918.07 km) |
| Smiltene to Orly | 1,136.63 mi (1,829.23 km) |
| Smiltene to Ormesson-sur-Marne | 1,129.72 mi (1,818.11 km) |
| Smiltene to Orsay | 1,145.79 mi (1,843.97 km) |
