| Grand Prairie to Oberkirch | 5,179.37 mi (8,335.39 km) |
| Grand Prairie to Obernburg am Main | 5,170.42 mi (8,320.99 km) |
| Grand Prairie to Obernkirchen | 5,078.68 mi (8,173.35 km) |
| Grand Prairie to Oberschleissheim | 5,322.95 mi (8,566.45 km) |
| Grand Prairie to Oberstdorf | 5,306.92 mi (8,540.66 km) |
| Grand Prairie to Obertraubling | 5,316.86 mi (8,556.65 km) |
| Grand Prairie to Obertshausen | 5,150.40 mi (8,288.78 km) |
| Grand Prairie to Oberursel | 5,135.75 mi (8,265.19 km) |
| Grand Prairie to Ochsenfurt | 5,212.13 mi (8,388.11 km) |
| Grand Prairie to Ochsenhausen | 5,268.47 mi (8,478.78 km) |
| Grand Prairie to Ochtrup | 5,011.63 mi (8,065.44 km) |
| Grand Prairie to Odenthal | 5,051.06 mi (8,128.89 km) |
| Grand Prairie to Oelde | 5,059.87 mi (8,143.07 km) |
| Grand Prairie to Oelsnitz | 5,259.09 mi (8,463.69 km) |
| Grand Prairie to Oer-Erkenschwick | 5,034.06 mi (8,101.54 km) |
