| Milwaukie to Octeville | 4,975.03 mi (8,006.54 km) |
| Milwaukie to Oignies | 5,055.53 mi (8,136.08 km) |
| Milwaukie to Oissel | 5,066.67 mi (8,154.02 km) |
| Milwaukie to Olivet | 5,170.39 mi (8,320.94 km) |
| Milwaukie to Ollioules | 5,547.11 mi (8,927.21 km) |
| Milwaukie to Olonne-sur-Mer | 5,137.30 mi (8,267.69 km) |
| Milwaukie to Oloron-Sainte-Marie | 5,354.20 mi (8,616.75 km) |
| Milwaukie to Onet Village | 5,384.78 mi (8,665.97 km) |
| Milwaukie to Onnaing | 5,075.84 mi (8,168.77 km) |
| Milwaukie to Orange | 5,460.87 mi (8,788.43 km) |
| Milwaukie to Orchies | 5,061.77 mi (8,146.14 km) |
| Milwaukie to Orleans | 5,168.49 mi (8,317.88 km) |
| Milwaukie to Orly | 5,135.18 mi (8,264.27 km) |
| Milwaukie to Ormesson-sur-Marne | 5,136.80 mi (8,266.88 km) |
| Milwaukie to Orsay | 5,132.12 mi (8,259.35 km) |
