| Fairmont to Oswego (Illinois) | 455.70 mi (733.38 km) |
| Fairmont to Oswego (New York) | 333.25 mi (536.32 km) |
| Fairmont to Otsego (Minnesota) | 794.00 mi (1,277.82 km) |
| Fairmont to Ottawa (Illinois) | 474.31 mi (763.33 km) |
| Fairmont to Ottawa (Kansas) | 812.45 mi (1,307.51 km) |
| Fairmont to Ottumwa (Iowa) | 655.19 mi (1,054.43 km) |
| Fairmont to Overland (Missouri) | 550.43 mi (885.83 km) |
| Fairmont to Overland Park (Kansas) | 778.83 mi (1,253.41 km) |
| Fairmont to Overlea (Maryland) | 193.98 mi (312.18 km) |
| Fairmont to Oviedo (Florida) | 749.85 mi (1,206.76 km) |
| Fairmont to Owasso (Oklahoma) | 881.84 mi (1,419.19 km) |
| Fairmont to Owatonna (Minnesota) | 744.45 mi (1,198.07 km) |
| Fairmont to Owensboro (Kentucky) | 394.36 mi (634.66 km) |
| Fairmont to Owings Mills (Maryland) | 179.21 mi (288.41 km) |
| Fairmont to Owosso (Michigan) | 320.67 mi (516.07 km) |
