| Fort Madison to Nyon | 4,579.65 mi (7,370.24 km) |
| Fort Madison to Oberriet | 4,670.44 mi (7,516.35 km) |
| Fort Madison to Obersiggenthal | 4,615.25 mi (7,427.53 km) |
| Fort Madison to Oberwil | 4,586.09 mi (7,380.60 km) |
| Fort Madison to Oberwingert | 4,632.14 mi (7,454.70 km) |
| Fort Madison to Oftringen | 4,607.76 mi (7,415.48 km) |
| Fort Madison to Olten | 4,605.79 mi (7,412.31 km) |
| Fort Madison to Onex | 4,582.30 mi (7,374.49 km) |
| Fort Madison to Opfikon | 4,627.84 mi (7,447.79 km) |
| Fort Madison to Ostermundigen | 4,605.80 mi (7,412.33 km) |
| Fort Madison to Payerne | 4,589.81 mi (7,386.59 km) |
| Fort Madison to Pfaffikon | 4,638.75 mi (7,465.35 km) |
| Fort Madison to Plan-les-Ouates | 4,583.61 mi (7,376.60 km) |
| Fort Madison to Pratteln | 4,591.51 mi (7,389.33 km) |
| Fort Madison to Prilly | 4,588.07 mi (7,383.78 km) |
