| Cincinnati to Nyon | 4,370.18 mi (7,033.12 km) |
| Cincinnati to Oberriet | 4,473.28 mi (7,199.05 km) |
| Cincinnati to Obersiggenthal | 4,416.06 mi (7,106.96 km) |
| Cincinnati to Oberwil | 4,385.38 mi (7,057.59 km) |
| Cincinnati to Oberwingert | 4,434.18 mi (7,136.12 km) |
| Cincinnati to Oftringen | 4,406.85 mi (7,092.13 km) |
| Cincinnati to Olten | 4,405.01 mi (7,089.18 km) |
| Cincinnati to Onex | 4,371.50 mi (7,035.25 km) |
| Cincinnati to Opfikon | 4,428.99 mi (7,127.78 km) |
| Cincinnati to Ostermundigen | 4,402.07 mi (7,084.44 km) |
| Cincinnati to Payerne | 4,384.12 mi (7,055.56 km) |
| Cincinnati to Pfaffikon | 4,440.06 mi (7,145.58 km) |
| Cincinnati to Plan-les-Ouates | 4,372.77 mi (7,037.29 km) |
| Cincinnati to Pratteln | 4,391.14 mi (7,066.86 km) |
| Cincinnati to Prilly | 4,380.18 mi (7,049.21 km) |
