| Opelika to Nyon | 4,699.28 mi (7,562.77 km) |
| Opelika to Oberriet | 4,813.27 mi (7,746.22 km) |
| Opelika to Obersiggenthal | 4,754.58 mi (7,651.76 km) |
| Opelika to Oberwil | 4,722.71 mi (7,600.47 km) |
| Opelika to Oberwingert | 4,773.71 mi (7,682.54 km) |
| Opelika to Oftringen | 4,743.84 mi (7,634.47 km) |
| Opelika to Olten | 4,742.14 mi (7,631.74 km) |
| Opelika to Onex | 4,699.31 mi (7,562.81 km) |
| Opelika to Opfikon | 4,767.74 mi (7,672.94 km) |
| Opelika to Ostermundigen | 4,736.45 mi (7,622.57 km) |
| Opelika to Payerne | 4,716.77 mi (7,590.91 km) |
| Opelika to Pfaffikon | 4,778.87 mi (7,690.84 km) |
| Opelika to Plan-les-Ouates | 4,700.52 mi (7,564.75 km) |
| Opelika to Pratteln | 4,728.75 mi (7,610.19 km) |
| Opelika to Prilly | 4,710.75 mi (7,581.21 km) |
