| North Little Rock to Oberkirch | 4,886.99 mi (7,864.86 km) |
| North Little Rock to Obernburg am Main | 4,880.97 mi (7,855.17 km) |
| North Little Rock to Obernkirchen | 4,793.67 mi (7,714.67 km) |
| North Little Rock to Oberschleissheim | 5,032.57 mi (8,099.14 km) |
| North Little Rock to Oberstdorf | 5,014.26 mi (8,069.68 km) |
| North Little Rock to Obertraubling | 5,028.14 mi (8,092.00 km) |
| North Little Rock to Obertshausen | 4,861.13 mi (7,823.24 km) |
| North Little Rock to Oberursel | 4,846.54 mi (7,799.75 km) |
| North Little Rock to Ochsenfurt | 4,923.01 mi (7,922.82 km) |
| North Little Rock to Ochsenhausen | 4,976.63 mi (8,009.11 km) |
| North Little Rock to Ochtrup | 4,725.14 mi (7,604.38 km) |
| North Little Rock to Odenthal | 4,762.33 mi (7,664.23 km) |
| North Little Rock to Oelde | 4,773.34 mi (7,681.94 km) |
| North Little Rock to Oelsnitz | 4,972.93 mi (8,003.15 km) |
| North Little Rock to Oer-Erkenschwick | 4,746.55 mi (7,638.83 km) |
