| West Des Moines to Octeville | 4,203.63 mi (6,765.10 km) |
| West Des Moines to Oignies | 4,346.58 mi (6,995.15 km) |
| West Des Moines to Oissel | 4,318.21 mi (6,949.48 km) |
| West Des Moines to Olivet | 4,405.21 mi (7,089.51 km) |
| West Des Moines to Ollioules | 4,751.08 mi (7,646.12 km) |
| West Des Moines to Olonne-sur-Mer | 4,310.99 mi (6,937.87 km) |
| West Des Moines to Oloron-Sainte-Marie | 4,485.88 mi (7,219.33 km) |
| West Des Moines to Onet Village | 4,570.25 mi (7,355.10 km) |
| West Des Moines to Onnaing | 4,371.85 mi (7,035.82 km) |
| West Des Moines to Orange | 4,668.02 mi (7,512.45 km) |
| West Des Moines to Orchies | 4,355.56 mi (7,009.60 km) |
| West Des Moines to Orleans | 4,404.05 mi (7,087.63 km) |
| West Des Moines to Orly | 4,390.15 mi (7,065.27 km) |
| West Des Moines to Ormesson-sur-Marne | 4,394.05 mi (7,071.53 km) |
| West Des Moines to Orsay | 4,384.13 mi (7,055.57 km) |
