| Ilioupoli to Oswego (Illinois) | 5,472.43 mi (8,807.02 km) |
| Ilioupoli to Oswego (New York) | 4,925.18 mi (7,926.32 km) |
| Ilioupoli to Otsego (Minnesota) | 5,495.90 mi (8,844.80 km) |
| Ilioupoli to Ottawa (Illinois) | 5,506.38 mi (8,861.67 km) |
| Ilioupoli to Ottawa (Kansas) | 5,883.27 mi (9,468.21 km) |
| Ilioupoli to Ottumwa (Iowa) | 5,658.24 mi (9,106.06 km) |
| Ilioupoli to Overland (Missouri) | 5,691.15 mi (9,159.02 km) |
| Ilioupoli to Overland Park (Kansas) | 5,847.40 mi (9,410.49 km) |
| Ilioupoli to Overlea (Maryland) | 5,089.94 mi (8,191.47 km) |
| Ilioupoli to Oviedo (Florida) | 5,756.47 mi (9,264.14 km) |
| Ilioupoli to Owasso (Oklahoma) | 6,020.43 mi (9,688.95 km) |
| Ilioupoli to Owatonna (Minnesota) | 5,539.21 mi (8,914.50 km) |
| Ilioupoli to Owensboro (Kentucky) | 5,605.11 mi (9,020.55 km) |
| Ilioupoli to Owings Mills (Maryland) | 5,099.83 mi (8,207.39 km) |
| Ilioupoli to Owosso (Michigan) | 5,252.15 mi (8,452.52 km) |
