| Des Moines to Octeville | 4,196.17 mi (6,753.08 km) |
| Des Moines to Oignies | 4,339.34 mi (6,983.50 km) |
| Des Moines to Oissel | 4,310.81 mi (6,937.57 km) |
| Des Moines to Olivet | 4,397.72 mi (7,077.45 km) |
| Des Moines to Ollioules | 4,743.39 mi (7,633.75 km) |
| Des Moines to Olonne-sur-Mer | 4,303.27 mi (6,925.45 km) |
| Des Moines to Oloron-Sainte-Marie | 4,477.97 mi (7,206.60 km) |
| Des Moines to Onet Village | 4,562.53 mi (7,342.67 km) |
| Des Moines to Onnaing | 4,364.63 mi (7,024.19 km) |
| Des Moines to Orange | 4,660.36 mi (7,500.13 km) |
| Des Moines to Orchies | 4,348.33 mi (6,997.97 km) |
| Des Moines to Orleans | 4,396.56 mi (7,075.59 km) |
| Des Moines to Orly | 4,382.75 mi (7,053.35 km) |
| Des Moines to Ormesson-sur-Marne | 4,386.65 mi (7,059.63 km) |
| Des Moines to Orsay | 4,376.71 mi (7,043.64 km) |
