| Davenport to Oerlinghausen | 4,378.51 mi (7,046.53 km) |
| Davenport to Oestrich-Winkel | 4,431.57 mi (7,131.92 km) |
| Davenport to Offenburg | 4,489.83 mi (7,225.68 km) |
| Davenport to Oftersheim | 4,477.91 mi (7,206.51 km) |
| Davenport to Ohrdruf | 4,496.62 mi (7,236.61 km) |
| Davenport to Ohringen | 4,518.32 mi (7,271.54 km) |
| Davenport to Olbernhau | 4,594.31 mi (7,393.83 km) |
| Davenport to Olching | 4,626.02 mi (7,444.86 km) |
| Davenport to Oldenburg | 4,317.35 mi (6,948.11 km) |
| Davenport to Oldenburg in Holstein | 4,362.91 mi (7,021.43 km) |
| Davenport to Olfen | 4,342.71 mi (6,988.92 km) |
| Davenport to Olpe | 4,385.80 mi (7,058.26 km) |
| Davenport to Olsberg | 4,396.07 mi (7,074.80 km) |
| Davenport to Oranienburg | 4,503.76 mi (7,248.10 km) |
| Davenport to Ortenberg | 4,455.77 mi (7,170.87 km) |
