| Tortosa to Oswego (Illinois) | 4,388.71 mi (7,062.95 km) |
| Tortosa to Oswego (New York) | 3,803.43 mi (6,121.03 km) |
| Tortosa to Otsego (Minnesota) | 4,477.03 mi (7,205.09 km) |
| Tortosa to Ottawa (Illinois) | 4,422.22 mi (7,116.87 km) |
| Tortosa to Ottawa (Kansas) | 4,810.73 mi (7,742.12 km) |
| Tortosa to Ottumwa (Iowa) | 4,590.71 mi (7,388.04 km) |
| Tortosa to Overland (Missouri) | 4,591.70 mi (7,389.63 km) |
| Tortosa to Overland Park (Kansas) | 4,773.93 mi (7,682.90 km) |
| Tortosa to Overlea (Maryland) | 3,932.93 mi (6,329.44 km) |
| Tortosa to Oviedo (Florida) | 4,549.37 mi (7,321.51 km) |
| Tortosa to Owasso (Oklahoma) | 4,931.75 mi (7,936.88 km) |
| Tortosa to Owatonna (Minnesota) | 4,506.02 mi (7,251.74 km) |
| Tortosa to Owensboro (Kentucky) | 4,481.26 mi (7,211.89 km) |
| Tortosa to Owings Mills (Maryland) | 3,944.24 mi (6,347.64 km) |
| Tortosa to Owosso (Michigan) | 4,159.90 mi (6,694.71 km) |
