| Davenport to Octeville | 4,080.59 mi (6,567.07 km) |
| Davenport to Oignies | 4,228.57 mi (6,805.23 km) |
| Davenport to Oissel | 4,196.63 mi (6,753.82 km) |
| Davenport to Olivet | 4,281.57 mi (6,890.52 km) |
| Davenport to Ollioules | 4,622.81 mi (7,439.69 km) |
| Davenport to Olonne-sur-Mer | 4,182.26 mi (6,730.69 km) |
| Davenport to Oloron-Sainte-Marie | 4,352.55 mi (7,004.75 km) |
| Davenport to Onet Village | 4,441.24 mi (7,147.49 km) |
| Davenport to Onnaing | 4,254.16 mi (6,846.41 km) |
| Davenport to Orange | 4,540.45 mi (7,307.15 km) |
| Davenport to Orchies | 4,237.76 mi (6,820.02 km) |
| Davenport to Orleans | 4,280.48 mi (6,888.77 km) |
| Davenport to Orly | 4,268.47 mi (6,869.44 km) |
| Davenport to Ormesson-sur-Marne | 4,272.55 mi (6,876.01 km) |
| Davenport to Orsay | 4,262.20 mi (6,859.35 km) |
