| Poplar Bluff to Octeville | 4,294.39 mi (6,911.15 km) |
| Poplar Bluff to Oignies | 4,452.99 mi (7,166.39 km) |
| Poplar Bluff to Oissel | 4,413.35 mi (7,102.60 km) |
| Poplar Bluff to Olivet | 4,493.22 mi (7,231.14 km) |
| Poplar Bluff to Ollioules | 4,821.86 mi (7,760.03 km) |
| Poplar Bluff to Olonne-sur-Mer | 4,381.77 mi (7,051.78 km) |
| Poplar Bluff to Oloron-Sainte-Marie | 4,538.91 mi (7,304.68 km) |
| Poplar Bluff to Onet Village | 4,639.04 mi (7,465.81 km) |
| Poplar Bluff to Onnaing | 4,479.15 mi (7,208.49 km) |
| Poplar Bluff to Orange | 4,741.58 mi (7,630.84 km) |
| Poplar Bluff to Orchies | 4,462.57 mi (7,181.82 km) |
| Poplar Bluff to Orleans | 4,492.31 mi (7,229.68 km) |
| Poplar Bluff to Orly | 4,484.69 mi (7,217.41 km) |
| Poplar Bluff to Ormesson-sur-Marne | 4,489.19 mi (7,224.65 km) |
| Poplar Bluff to Orsay | 4,477.90 mi (7,206.48 km) |
