| Sitges to Oswego (Illinois) | 4,428.24 mi (7,126.56 km) |
| Sitges to Oswego (New York) | 3,846.32 mi (6,190.06 km) |
| Sitges to Otsego (Minnesota) | 4,510.33 mi (7,258.67 km) |
| Sitges to Ottawa (Illinois) | 4,461.83 mi (7,180.62 km) |
| Sitges to Ottawa (Kansas) | 4,849.66 mi (7,804.78 km) |
| Sitges to Ottumwa (Iowa) | 4,628.87 mi (7,449.44 km) |
| Sitges to Overland (Missouri) | 4,633.11 mi (7,456.28 km) |
| Sitges to Overland Park (Kansas) | 4,812.92 mi (7,745.64 km) |
| Sitges to Overlea (Maryland) | 3,980.17 mi (6,405.47 km) |
| Sitges to Oviedo (Florida) | 4,603.86 mi (7,409.19 km) |
| Sitges to Owasso (Oklahoma) | 4,972.45 mi (8,002.38 km) |
| Sitges to Owatonna (Minnesota) | 4,540.71 mi (7,307.57 km) |
| Sitges to Owensboro (Kentucky) | 4,525.17 mi (7,282.56 km) |
| Sitges to Owings Mills (Maryland) | 3,991.32 mi (6,423.41 km) |
| Sitges to Owosso (Michigan) | 4,200.01 mi (6,759.27 km) |
