| Forest Hills to Oswego (Illinois) | 170.03 mi (273.64 km) |
| Forest Hills to Oswego (New York) | 453.78 mi (730.28 km) |
| Forest Hills to Otsego (Minnesota) | 433.48 mi (697.62 km) |
| Forest Hills to Ottawa (Illinois) | 203.60 mi (327.66 km) |
| Forest Hills to Ottawa (Kansas) | 592.88 mi (954.14 km) |
| Forest Hills to Ottumwa (Iowa) | 380.07 mi (611.66 km) |
| Forest Hills to Overland (Missouri) | 389.41 mi (626.70 km) |
| Forest Hills to Overland Park (Kansas) | 556.01 mi (894.81 km) |
| Forest Hills to Overlea (Maryland) | 528.23 mi (850.11 km) |
| Forest Hills to Oviedo (Florida) | 1,016.61 mi (1,636.08 km) |
| Forest Hills to Owasso (Oklahoma) | 716.88 mi (1,153.70 km) |
| Forest Hills to Owatonna (Minnesota) | 395.51 mi (636.52 km) |
| Forest Hills to Owensboro (Kentucky) | 369.36 mi (594.42 km) |
| Forest Hills to Owings Mills (Maryland) | 514.03 mi (827.24 km) |
| Forest Hills to Owosso (Michigan) | 66.45 mi (106.94 km) |
