| Siverek to Odessa (Texas) | 7,028.84 mi (11,311.83 km) |
| Siverek to Ogden (Utah) | 6,686.84 mi (10,761.43 km) |
| Siverek to Oildale (California) | 7,193.84 mi (11,577.37 km) |
| Siverek to Ojus (Florida) | 6,542.89 mi (10,529.76 km) |
| Siverek to Okemos (Michigan) | 5,851.34 mi (9,416.83 km) |
| Siverek to Oklahoma City (Oklahoma) | 6,672.41 mi (10,738.20 km) |
| Siverek to Okmulgee (Oklahoma) | 6,617.27 mi (10,649.47 km) |
| Siverek to Olathe (Kansas) | 6,393.83 mi (10,289.88 km) |
| Siverek to Old Jamestown (Missouri) | 6,252.60 mi (10,062.58 km) |
| Siverek to Oldsmar (Florida) | 6,542.38 mi (10,528.94 km) |
| Siverek to Olean (New York) | 5,674.05 mi (9,131.49 km) |
| Siverek to Olive Branch (Mississippi) | 6,449.82 mi (10,379.99 km) |
| Siverek to Olivehurst (California) | 6,991.16 mi (11,251.18 km) |
| Siverek to Olney (Maryland) | 5,766.29 mi (9,279.95 km) |
| Siverek to Olympia (Washington) | 6,475.97 mi (10,422.07 km) |
