| Acqui Terme to Oswego (Illinois) | 4,569.25 mi (7,353.50 km) |
| Acqui Terme to Oswego (New York) | 4,012.55 mi (6,457.57 km) |
| Acqui Terme to Otsego (Minnesota) | 4,612.36 mi (7,422.88 km) |
| Acqui Terme to Ottawa (Illinois) | 4,603.18 mi (7,408.11 km) |
| Acqui Terme to Ottawa (Kansas) | 4,984.27 mi (8,021.40 km) |
| Acqui Terme to Ottumwa (Iowa) | 4,760.00 mi (7,660.49 km) |
| Acqui Terme to Overland (Missouri) | 4,784.63 mi (7,700.12 km) |
| Acqui Terme to Overland Park (Kansas) | 4,948.04 mi (7,963.10 km) |
| Acqui Terme to Overlea (Maryland) | 4,173.03 mi (6,715.85 km) |
| Acqui Terme to Oviedo (Florida) | 4,841.08 mi (7,790.96 km) |
| Acqui Terme to Owasso (Oklahoma) | 5,117.38 mi (8,235.62 km) |
| Acqui Terme to Owatonna (Minnesota) | 4,651.08 mi (7,485.19 km) |
| Acqui Terme to Owensboro (Kentucky) | 4,693.25 mi (7,553.06 km) |
| Acqui Terme to Owings Mills (Maryland) | 4,183.04 mi (6,731.95 km) |
| Acqui Terme to Owosso (Michigan) | 4,346.29 mi (6,994.67 km) |
