| Opelousas to Nyon | 5,087.57 mi (8,187.65 km) |
| Opelousas to Oberriet | 5,195.73 mi (8,361.71 km) |
| Opelousas to Obersiggenthal | 5,137.83 mi (8,268.54 km) |
| Opelousas to Oberwil | 5,106.60 mi (8,218.28 km) |
| Opelousas to Oberwingert | 5,156.40 mi (8,298.42 km) |
| Opelousas to Oftringen | 5,127.94 mi (8,252.62 km) |
| Opelousas to Olten | 5,126.16 mi (8,249.76 km) |
| Opelousas to Onex | 5,088.25 mi (8,188.75 km) |
| Opelousas to Opfikon | 5,150.87 mi (8,289.53 km) |
| Opelousas to Ostermundigen | 5,121.98 mi (8,243.03 km) |
| Opelousas to Payerne | 5,103.22 mi (8,212.83 km) |
| Opelousas to Pfaffikon | 5,161.97 mi (8,307.38 km) |
| Opelousas to Plan-les-Ouates | 5,089.49 mi (8,190.74 km) |
| Opelousas to Pratteln | 5,112.49 mi (8,227.77 km) |
| Opelousas to Prilly | 5,098.28 mi (8,204.89 km) |
