| Alexandroupoli to Oswego (Illinois) | 5,407.68 mi (8,702.81 km) |
| Alexandroupoli to Oswego (New York) | 4,877.71 mi (7,849.91 km) |
| Alexandroupoli to Otsego (Minnesota) | 5,410.78 mi (8,707.81 km) |
| Alexandroupoli to Ottawa (Illinois) | 5,441.57 mi (8,757.36 km) |
| Alexandroupoli to Ottawa (Kansas) | 5,812.15 mi (9,353.75 km) |
| Alexandroupoli to Ottumwa (Iowa) | 5,586.89 mi (8,991.24 km) |
| Alexandroupoli to Overland (Missouri) | 5,630.54 mi (9,061.48 km) |
| Alexandroupoli to Overland Park (Kansas) | 5,776.82 mi (9,296.89 km) |
| Alexandroupoli to Overlea (Maryland) | 5,056.00 mi (8,136.84 km) |
| Alexandroupoli to Oviedo (Florida) | 5,746.10 mi (9,247.45 km) |
| Alexandroupoli to Owasso (Oklahoma) | 5,953.99 mi (9,582.01 km) |
| Alexandroupoli to Owatonna (Minnesota) | 5,457.97 mi (8,783.76 km) |
| Alexandroupoli to Owensboro (Kentucky) | 5,554.21 mi (8,938.64 km) |
| Alexandroupoli to Owings Mills (Maryland) | 5,065.19 mi (8,151.64 km) |
| Alexandroupoli to Owosso (Michigan) | 5,191.77 mi (8,355.35 km) |
