| Tucson Estates to Oberkirch | 5,720.01 mi (9,205.46 km) |
| Tucson Estates to Obernburg am Main | 5,694.80 mi (9,164.89 km) |
| Tucson Estates to Obernkirchen | 5,581.11 mi (8,981.92 km) |
| Tucson Estates to Oberschleissheim | 5,850.07 mi (9,414.78 km) |
| Tucson Estates to Oberstdorf | 5,847.30 mi (9,410.32 km) |
| Tucson Estates to Obertraubling | 5,834.95 mi (9,390.45 km) |
| Tucson Estates to Obertshausen | 5,674.12 mi (9,131.62 km) |
| Tucson Estates to Oberursel | 5,659.37 mi (9,107.88 km) |
| Tucson Estates to Ochsenfurt | 5,734.02 mi (9,228.02 km) |
| Tucson Estates to Ochsenhausen | 5,804.69 mi (9,341.75 km) |
| Tucson Estates to Ochtrup | 5,522.82 mi (8,888.12 km) |
| Tucson Estates to Odenthal | 5,573.43 mi (8,969.57 km) |
| Tucson Estates to Oelde | 5,570.46 mi (8,964.80 km) |
| Tucson Estates to Oelsnitz | 5,764.50 mi (9,277.06 km) |
| Tucson Estates to Oer-Erkenschwick | 5,550.24 mi (8,932.25 km) |
