| Western Springs to Orthez | 4,210.15 mi (6,775.58 km) |
| Western Springs to Orvault | 4,042.06 mi (6,505.07 km) |
| Western Springs to Osny | 4,128.08 mi (6,643.50 km) |
| Western Springs to Ostwald | 4,364.62 mi (7,024.18 km) |
| Western Springs to Ouistreham | 4,029.44 mi (6,484.76 km) |
| Western Springs to Oullins | 4,359.16 mi (7,015.39 km) |
| Western Springs to Outreau | 4,053.52 mi (6,523.51 km) |
| Western Springs to Oyonnax | 4,372.45 mi (7,036.79 km) |
| Western Springs to Ozoir-la-Ferriere | 4,162.10 mi (6,698.26 km) |
| Western Springs to Pace | 4,006.57 mi (6,447.96 km) |
| Western Springs to Palaiseau | 4,147.34 mi (6,674.49 km) |
| Western Springs to Pamiers | 4,325.13 mi (6,960.63 km) |
| Western Springs to Panazol | 4,212.31 mi (6,779.06 km) |
| Western Springs to Pantin | 4,147.04 mi (6,674.01 km) |
| Western Springs to Paray-le-Monial | 4,303.75 mi (6,926.22 km) |
