| Allen to Oberkirch | 5,144.20 mi (8,278.79 km) |
| Allen to Obernburg am Main | 5,135.15 mi (8,264.23 km) |
| Allen to Obernkirchen | 5,043.31 mi (8,116.43 km) |
| Allen to Oberschleissheim | 5,287.70 mi (8,509.74 km) |
| Allen to Oberstdorf | 5,271.76 mi (8,484.08 km) |
| Allen to Obertraubling | 5,281.56 mi (8,499.86 km) |
| Allen to Obertshausen | 5,115.13 mi (8,232.01 km) |
| Allen to Oberursel | 5,100.47 mi (8,208.42 km) |
| Allen to Ochsenfurt | 5,176.85 mi (8,331.33 km) |
| Allen to Ochsenhausen | 5,233.28 mi (8,422.14 km) |
| Allen to Ochtrup | 4,976.29 mi (8,008.57 km) |
| Allen to Odenthal | 5,015.77 mi (8,072.10 km) |
| Allen to Oelde | 5,024.53 mi (8,086.19 km) |
| Allen to Oelsnitz | 5,223.74 mi (8,406.80 km) |
| Allen to Oer-Erkenschwick | 4,998.74 mi (8,044.70 km) |
