| Chiampo to Oswego (Illinois) | 4,643.89 mi (7,473.62 km) |
| Chiampo to Oswego (New York) | 4,096.92 mi (6,593.35 km) |
| Chiampo to Otsego (Minnesota) | 4,673.78 mi (7,521.72 km) |
| Chiampo to Ottawa (Illinois) | 4,677.85 mi (7,528.27 km) |
| Chiampo to Ottawa (Kansas) | 5,055.73 mi (8,136.41 km) |
| Chiampo to Ottumwa (Iowa) | 4,830.86 mi (7,774.51 km) |
| Chiampo to Overland (Missouri) | 4,862.21 mi (7,824.98 km) |
| Chiampo to Overland Park (Kansas) | 5,019.76 mi (8,078.52 km) |
| Chiampo to Overlea (Maryland) | 4,265.52 mi (6,864.68 km) |
| Chiampo to Oviedo (Florida) | 4,946.17 mi (7,960.10 km) |
| Chiampo to Owasso (Oklahoma) | 5,191.99 mi (8,355.70 km) |
| Chiampo to Owatonna (Minnesota) | 4,715.22 mi (7,588.42 km) |
| Chiampo to Owensboro (Kentucky) | 4,776.51 mi (7,687.04 km) |
| Chiampo to Owings Mills (Maryland) | 4,275.14 mi (6,880.17 km) |
| Chiampo to Owosso (Michigan) | 4,423.24 mi (7,118.52 km) |
