| Iskenderun to Olympia Heights (Florida) | 6,472.57 mi (10,416.60 km) |
| Iskenderun to Omaha (Nebraska) | 6,268.09 mi (10,087.52 km) |
| Iskenderun to On Top of the World Designated Place (Florida) | 6,394.08 mi (10,290.28 km) |
| Iskenderun to Onalaska (Wisconsin) | 5,973.29 mi (9,613.07 km) |
| Iskenderun to Oneida (New York) | 5,465.86 mi (8,796.46 km) |
| Iskenderun to Oneonta (New York) | 5,470.78 mi (8,804.37 km) |
| Iskenderun to Ontario (California) | 7,273.18 mi (11,705.06 km) |
| Iskenderun to Ontario (Oregon) | 6,618.55 mi (10,651.52 km) |
| Iskenderun to Opa-locka (Florida) | 6,460.40 mi (10,397.01 km) |
| Iskenderun to Opelika (Alabama) | 6,345.18 mi (10,211.59 km) |
| Iskenderun to Opelousas (Louisiana) | 6,716.54 mi (10,809.23 km) |
| Iskenderun to Orange (California) | 7,292.85 mi (11,736.71 km) |
| Iskenderun to Orange (Texas) | 6,801.17 mi (10,945.42 km) |
| Iskenderun to Orange City (Florida) | 6,359.57 mi (10,234.75 km) |
| Iskenderun to Orangeburg (South Carolina) | 6,121.34 mi (9,851.34 km) |
