| San Tan Valley to Oberkirch | 5,678.60 mi (9,138.83 km) |
| San Tan Valley to Obernburg am Main | 5,651.88 mi (9,095.82 km) |
| San Tan Valley to Obernkirchen | 5,536.34 mi (8,909.87 km) |
| San Tan Valley to Oberschleissheim | 5,807.20 mi (9,345.78 km) |
| San Tan Valley to Oberstdorf | 5,805.70 mi (9,343.37 km) |
| San Tan Valley to Obertraubling | 5,791.26 mi (9,320.13 km) |
| San Tan Valley to Obertshausen | 5,631.17 mi (9,062.49 km) |
| San Tan Valley to Oberursel | 5,616.43 mi (9,038.77 km) |
| San Tan Valley to Ochsenfurt | 5,690.82 mi (9,158.48 km) |
| San Tan Valley to Ochsenhausen | 5,762.75 mi (9,274.25 km) |
| San Tan Valley to Ochtrup | 5,478.92 mi (8,817.46 km) |
| San Tan Valley to Odenthal | 5,530.49 mi (8,900.46 km) |
| San Tan Valley to Oelde | 5,526.44 mi (8,893.95 km) |
| San Tan Valley to Oelsnitz | 5,719.75 mi (9,205.04 km) |
| San Tan Valley to Oer-Erkenschwick | 5,506.76 mi (8,862.27 km) |
