| Terni to Oswego (Illinois) | 4,823.77 mi (7,763.10 km) |
| Terni to Oswego (New York) | 4,267.11 mi (6,867.25 km) |
| Terni to Otsego (Minnesota) | 4,864.67 mi (7,828.94 km) |
| Terni to Ottawa (Illinois) | 4,857.70 mi (7,817.71 km) |
| Terni to Ottawa (Kansas) | 5,238.49 mi (8,430.54 km) |
| Terni to Ottumwa (Iowa) | 5,014.14 mi (8,069.48 km) |
| Terni to Overland (Missouri) | 5,039.30 mi (8,109.98 km) |
| Terni to Overland Park (Kansas) | 5,202.29 mi (8,372.28 km) |
| Terni to Overlea (Maryland) | 4,426.44 mi (7,123.67 km) |
| Terni to Oviedo (Florida) | 5,089.87 mi (8,191.36 km) |
| Terni to Owasso (Oklahoma) | 5,371.91 mi (8,645.25 km) |
| Terni to Owatonna (Minnesota) | 4,904.04 mi (7,892.29 km) |
| Terni to Owensboro (Kentucky) | 4,947.85 mi (7,962.80 km) |
| Terni to Owings Mills (Maryland) | 4,436.53 mi (7,139.91 km) |
| Terni to Owosso (Michigan) | 4,600.93 mi (7,404.48 km) |
