| Downers Grove to Orthez | 4,215.41 mi (6,784.05 km) |
| Downers Grove to Orvault | 4,047.14 mi (6,513.24 km) |
| Downers Grove to Osny | 4,132.97 mi (6,651.37 km) |
| Downers Grove to Ostwald | 4,369.40 mi (7,031.87 km) |
| Downers Grove to Ouistreham | 4,034.37 mi (6,492.69 km) |
| Downers Grove to Oullins | 4,364.17 mi (7,023.46 km) |
| Downers Grove to Outreau | 4,058.31 mi (6,531.22 km) |
| Downers Grove to Oyonnax | 4,377.42 mi (7,044.77 km) |
| Downers Grove to Ozoir-la-Ferriere | 4,166.99 mi (6,706.13 km) |
| Downers Grove to Pace | 4,011.60 mi (6,456.05 km) |
| Downers Grove to Palaiseau | 4,152.24 mi (6,682.38 km) |
| Downers Grove to Pamiers | 4,330.36 mi (6,969.04 km) |
| Downers Grove to Panazol | 4,217.40 mi (6,787.25 km) |
| Downers Grove to Pantin | 4,151.93 mi (6,681.88 km) |
| Downers Grove to Paray-le-Monial | 4,308.74 mi (6,934.25 km) |
