| Irving to Oberkirch | 5,168.56 mi (8,317.99 km) |
| Irving to Obernburg am Main | 5,159.47 mi (8,303.36 km) |
| Irving to Obernkirchen | 5,067.54 mi (8,155.41 km) |
| Irving to Oberschleissheim | 5,312.03 mi (8,548.89 km) |
| Irving to Oberstdorf | 5,296.12 mi (8,523.29 km) |
| Irving to Obertraubling | 5,305.86 mi (8,538.96 km) |
| Irving to Obertshausen | 5,139.44 mi (8,271.13 km) |
| Irving to Oberursel | 5,124.78 mi (8,247.54 km) |
| Irving to Ochsenfurt | 5,201.16 mi (8,370.45 km) |
| Irving to Ochsenhausen | 5,257.63 mi (8,461.33 km) |
| Irving to Ochtrup | 5,000.55 mi (8,047.61 km) |
| Irving to Odenthal | 5,040.07 mi (8,111.21 km) |
| Irving to Oelde | 5,048.78 mi (8,125.23 km) |
| Irving to Oelsnitz | 5,247.99 mi (8,445.83 km) |
| Irving to Oer-Erkenschwick | 5,023.02 mi (8,083.77 km) |
