| South Milwaukee to Orthez | 4,165.96 mi (6,704.47 km) |
| South Milwaukee to Orvault | 3,994.22 mi (6,428.07 km) |
| South Milwaukee to Osny | 4,076.91 mi (6,561.15 km) |
| South Milwaukee to Ostwald | 4,311.69 mi (6,938.99 km) |
| South Milwaukee to Ouistreham | 3,978.94 mi (6,403.49 km) |
| South Milwaukee to Oullins | 4,310.11 mi (6,936.45 km) |
| South Milwaukee to Outreau | 4,000.89 mi (6,438.80 km) |
| South Milwaukee to Oyonnax | 4,322.51 mi (6,956.41 km) |
| South Milwaukee to Ozoir-la-Ferriere | 4,110.97 mi (6,615.97 km) |
| South Milwaukee to Pace | 3,957.85 mi (6,369.55 km) |
| South Milwaukee to Palaiseau | 4,096.44 mi (6,592.58 km) |
| South Milwaukee to Pamiers | 4,280.17 mi (6,888.26 km) |
| South Milwaukee to Panazol | 4,164.70 mi (6,702.44 km) |
| South Milwaukee to Pantin | 4,095.90 mi (6,591.71 km) |
| South Milwaukee to Paray-le-Monial | 4,254.30 mi (6,846.63 km) |
