| Peoria to Octeville | 4,078.15 mi (6,563.14 km) |
| Peoria to Oignies | 4,229.50 mi (6,806.72 km) |
| Peoria to Oissel | 4,195.14 mi (6,751.43 km) |
| Peoria to Olivet | 4,278.59 mi (6,885.72 km) |
| Peoria to Ollioules | 4,616.30 mi (7,429.22 km) |
| Peoria to Olonne-sur-Mer | 4,175.64 mi (6,720.04 km) |
| Peoria to Oloron-Sainte-Marie | 4,342.30 mi (6,988.26 km) |
| Peoria to Onet Village | 4,434.27 mi (7,136.27 km) |
| Peoria to Onnaing | 4,255.28 mi (6,848.22 km) |
| Peoria to Orange | 4,534.50 mi (7,297.57 km) |
| Peoria to Orchies | 4,238.82 mi (6,821.72 km) |
| Peoria to Orleans | 4,277.55 mi (6,884.06 km) |
| Peoria to Orly | 4,266.87 mi (6,866.87 km) |
| Peoria to Ormesson-sur-Marne | 4,271.08 mi (6,873.64 km) |
| Peoria to Orsay | 4,260.44 mi (6,856.52 km) |
