| Opelousas to Oberkirch | 5,095.19 mi (8,199.91 km) |
| Opelousas to Obernburg am Main | 5,094.72 mi (8,199.16 km) |
| Opelousas to Obernkirchen | 5,015.08 mi (8,070.99 km) |
| Opelousas to Oberschleissheim | 5,244.29 mi (8,439.86 km) |
| Opelousas to Oberstdorf | 5,221.60 mi (8,403.36 km) |
| Opelousas to Obertraubling | 5,242.85 mi (8,437.56 km) |
| Opelousas to Obertshausen | 5,075.25 mi (8,167.82 km) |
| Opelousas to Oberursel | 5,060.79 mi (8,144.56 km) |
| Opelousas to Ochsenfurt | 5,137.26 mi (8,267.63 km) |
| Opelousas to Ochsenhausen | 5,185.68 mi (8,345.54 km) |
| Opelousas to Ochtrup | 4,944.32 mi (7,957.12 km) |
| Opelousas to Odenthal | 4,977.63 mi (8,010.72 km) |
| Opelousas to Oelde | 4,992.34 mi (8,034.39 km) |
| Opelousas to Oelsnitz | 5,192.09 mi (8,355.85 km) |
| Opelousas to Oer-Erkenschwick | 4,963.97 mi (7,988.74 km) |
