| Forest Hills to Oakley (California) | 1,918.29 mi (3,087.20 km) |
| Forest Hills to Oakton (Virginia) | 511.25 mi (822.78 km) |
| Forest Hills to Oakville (Missouri) | 401.23 mi (645.72 km) |
| Forest Hills to Oatfield (Oregon) | 1,829.82 mi (2,944.81 km) |
| Forest Hills to Ocala (Florida) | 969.94 mi (1,560.97 km) |
| Forest Hills to Ocean Acres (New Jersey) | 621.75 mi (1,000.61 km) |
| Forest Hills to Ocean City (New Jersey) | 620.82 mi (999.12 km) |
| Forest Hills to Ocean Pines (Maryland) | 626.61 mi (1,008.43 km) |
| Forest Hills to Ocean Pointe (Hawaii) | 4,360.50 mi (7,017.54 km) |
| Forest Hills to Ocean Springs (Mississippi) | 885.91 mi (1,425.74 km) |
| Forest Hills to Oceanside (California) | 1,842.76 mi (2,965.64 km) |
| Forest Hills to Oceanside (New York) | 630.74 mi (1,015.08 km) |
| Forest Hills to Ocoee (Florida) | 1,017.56 mi (1,637.60 km) |
| Forest Hills to Oconomowoc (Wisconsin) | 152.10 mi (244.78 km) |
| Forest Hills to Odenton (Maryland) | 531.17 mi (854.84 km) |
