| Marmara Ereglisi to Olympia Heights (Florida) | 5,936.85 mi (9,554.43 km) |
| Marmara Ereglisi to Omaha (Nebraska) | 5,762.26 mi (9,273.47 km) |
| Marmara Ereglisi to On Top of the World Designated Place (Florida) | 5,858.93 mi (9,429.03 km) |
| Marmara Ereglisi to Onalaska (Wisconsin) | 5,464.16 mi (8,793.72 km) |
| Marmara Ereglisi to Oneida (New York) | 4,937.47 mi (7,946.09 km) |
| Marmara Ereglisi to Oneonta (New York) | 4,941.22 mi (7,952.12 km) |
| Marmara Ereglisi to Ontario (California) | 6,810.49 mi (10,960.42 km) |
| Marmara Ereglisi to Ontario (Oregon) | 6,173.56 mi (9,935.39 km) |
| Marmara Ereglisi to Opa-locka (Florida) | 5,924.67 mi (9,534.83 km) |
| Marmara Ereglisi to Opelika (Alabama) | 5,813.59 mi (9,356.07 km) |
| Marmara Ereglisi to Opelousas (Louisiana) | 6,188.89 mi (9,960.06 km) |
| Marmara Ereglisi to Orange (California) | 6,830.49 mi (10,992.61 km) |
| Marmara Ereglisi to Orange (Texas) | 6,274.97 mi (10,098.59 km) |
| Marmara Ereglisi to Orange City (Florida) | 5,824.13 mi (9,373.04 km) |
| Marmara Ereglisi to Orangeburg (South Carolina) | 5,587.65 mi (8,992.46 km) |
