| Peoria to Oberkirch | 4,493.95 mi (7,232.31 km) |
| Peoria to Obernburg am Main | 4,482.79 mi (7,214.36 km) |
| Peoria to Obernkirchen | 4,388.86 mi (7,063.18 km) |
| Peoria to Oberschleissheim | 4,635.87 mi (7,460.71 km) |
| Peoria to Oberstdorf | 4,621.67 mi (7,437.85 km) |
| Peoria to Obertraubling | 4,628.71 mi (7,449.20 km) |
| Peoria to Obertshausen | 4,462.67 mi (7,181.97 km) |
| Peoria to Oberursel | 4,447.98 mi (7,158.34 km) |
| Peoria to Ochsenfurt | 4,524.27 mi (7,281.11 km) |
| Peoria to Ochsenhausen | 4,582.53 mi (7,374.87 km) |
| Peoria to Ochtrup | 4,322.44 mi (6,956.30 km) |
| Peoria to Odenthal | 4,363.04 mi (7,021.63 km) |
| Peoria to Oelde | 4,370.68 mi (7,033.93 km) |
| Peoria to Oelsnitz | 4,569.68 mi (7,354.19 km) |
| Peoria to Oer-Erkenschwick | 4,345.36 mi (6,993.19 km) |
