| Key Biscayne to Nyon | 4,790.60 mi (7,709.72 km) |
| Key Biscayne to Oberriet | 4,922.47 mi (7,921.96 km) |
| Key Biscayne to Obersiggenthal | 4,862.09 mi (7,824.77 km) |
| Key Biscayne to Oberwil | 4,828.59 mi (7,770.87 km) |
| Key Biscayne to Oberwingert | 4,882.75 mi (7,858.02 km) |
| Key Biscayne to Oftringen | 4,848.70 mi (7,803.24 km) |
| Key Biscayne to Olten | 4,847.29 mi (7,800.96 km) |
| Key Biscayne to Onex | 4,788.29 mi (7,706.01 km) |
| Key Biscayne to Opfikon | 4,875.44 mi (7,846.26 km) |
| Key Biscayne to Ostermundigen | 4,836.65 mi (7,783.84 km) |
| Key Biscayne to Payerne | 4,814.18 mi (7,747.68 km) |
| Key Biscayne to Pfaffikon | 4,886.48 mi (7,864.02 km) |
| Key Biscayne to Plan-les-Ouates | 4,789.37 mi (7,707.75 km) |
| Key Biscayne to Pratteln | 4,835.03 mi (7,781.23 km) |
| Key Biscayne to Prilly | 4,804.49 mi (7,732.08 km) |
