| Cascades to Orthez | 3,846.43 mi (6,190.24 km) |
| Cascades to Orvault | 3,708.76 mi (5,968.67 km) |
| Cascades to Osny | 3,822.04 mi (6,150.97 km) |
| Cascades to Ostwald | 4,071.69 mi (6,552.75 km) |
| Cascades to Ouistreham | 3,718.73 mi (5,984.72 km) |
| Cascades to Oullins | 4,032.19 mi (6,489.19 km) |
| Cascades to Outreau | 3,761.62 mi (6,053.75 km) |
| Cascades to Oyonnax | 4,052.89 mi (6,522.49 km) |
| Cascades to Ozoir-la-Ferriere | 3,855.32 mi (6,204.53 km) |
| Cascades to Pace | 3,680.93 mi (5,923.89 km) |
| Cascades to Palaiseau | 3,838.66 mi (6,177.73 km) |
| Cascades to Pamiers | 3,966.05 mi (6,382.74 km) |
| Cascades to Panazol | 3,875.11 mi (6,236.39 km) |
| Cascades to Pantin | 3,840.50 mi (6,180.69 km) |
| Cascades to Paray-le-Monial | 3,980.81 mi (6,406.49 km) |
