| Colleferro to Oswego (Illinois) | 4,874.65 mi (7,844.99 km) |
| Colleferro to Oswego (New York) | 4,315.56 mi (6,945.22 km) |
| Colleferro to Otsego (Minnesota) | 4,918.45 mi (7,915.49 km) |
| Colleferro to Ottawa (Illinois) | 4,908.57 mi (7,899.58 km) |
| Colleferro to Ottawa (Kansas) | 5,290.07 mi (8,513.55 km) |
| Colleferro to Ottumwa (Iowa) | 5,065.89 mi (8,152.76 km) |
| Colleferro to Overland (Missouri) | 5,089.41 mi (8,190.61 km) |
| Colleferro to Overland Park (Kansas) | 5,253.81 mi (8,455.19 km) |
| Colleferro to Overlea (Maryland) | 4,472.40 mi (7,197.63 km) |
| Colleferro to Oviedo (Florida) | 5,131.02 mi (8,257.58 km) |
| Colleferro to Owasso (Oklahoma) | 5,422.71 mi (8,727.01 km) |
| Colleferro to Owatonna (Minnesota) | 4,957.27 mi (7,977.95 km) |
| Colleferro to Owensboro (Kentucky) | 4,996.45 mi (8,041.01 km) |
| Colleferro to Owings Mills (Maryland) | 4,482.61 mi (7,214.07 km) |
| Colleferro to Owosso (Michigan) | 4,651.28 mi (7,485.50 km) |
