| Stamford to Oswego (Illinois) | 3,933.49 mi (6,330.34 km) |
| Stamford to Oswego (New York) | 3,400.70 mi (5,472.89 km) |
| Stamford to Otsego (Minnesota) | 3,953.58 mi (6,362.67 km) |
| Stamford to Ottawa (Illinois) | 3,967.42 mi (6,384.95 km) |
| Stamford to Ottawa (Kansas) | 4,341.79 mi (6,987.44 km) |
| Stamford to Ottumwa (Iowa) | 4,116.62 mi (6,625.06 km) |
| Stamford to Overland (Missouri) | 4,154.79 mi (6,686.49 km) |
| Stamford to Overland Park (Kansas) | 4,306.09 mi (6,929.98 km) |
| Stamford to Overlea (Maryland) | 3,584.00 mi (5,767.89 km) |
| Stamford to Oviedo (Florida) | 4,293.69 mi (6,910.03 km) |
| Stamford to Owasso (Oklahoma) | 4,480.86 mi (7,211.24 km) |
| Stamford to Owatonna (Minnesota) | 3,996.35 mi (6,431.51 km) |
| Stamford to Owensboro (Kentucky) | 4,076.84 mi (6,561.05 km) |
| Stamford to Owings Mills (Maryland) | 3,592.77 mi (5,782.00 km) |
| Stamford to Owosso (Michigan) | 3,715.80 mi (5,980.00 km) |
