| South Houston to Orthez | 5,047.13 mi (8,122.57 km) |
| South Houston to Orvault | 4,901.99 mi (7,888.99 km) |
| South Houston to Osny | 5,005.75 mi (8,055.97 km) |
| South Houston to Ostwald | 5,250.37 mi (8,449.66 km) |
| South Houston to Ouistreham | 4,904.04 mi (7,892.30 km) |
| South Houston to Oullins | 5,224.14 mi (8,407.44 km) |
| South Houston to Outreau | 4,938.96 mi (7,948.49 km) |
| South Houston to Oyonnax | 5,242.36 mi (8,436.77 km) |
| South Houston to Ozoir-la-Ferriere | 5,039.42 mi (8,110.16 km) |
| South Houston to Pace | 4,871.63 mi (7,840.13 km) |
| South Houston to Palaiseau | 5,023.48 mi (8,084.52 km) |
| South Houston to Pamiers | 5,166.10 mi (8,314.03 km) |
| South Houston to Panazol | 5,069.85 mi (8,159.14 km) |
| South Houston to Pantin | 5,024.46 mi (8,086.09 km) |
| South Houston to Paray-le-Monial | 5,171.30 mi (8,322.40 km) |
