| Houston to Orthez | 5,048.74 mi (8,125.16 km) |
| Houston to Orvault | 4,902.84 mi (7,890.36 km) |
| Houston to Osny | 5,005.97 mi (8,056.34 km) |
| Houston to Ostwald | 5,250.30 mi (8,449.55 km) |
| Houston to Ouistreham | 4,904.37 mi (7,892.83 km) |
| Houston to Oullins | 5,224.87 mi (8,408.62 km) |
| Houston to Outreau | 4,938.87 mi (7,948.34 km) |
| Houston to Oyonnax | 5,242.92 mi (8,437.67 km) |
| Houston to Ozoir-la-Ferriere | 5,039.67 mi (8,110.56 km) |
| Houston to Pace | 4,872.30 mi (7,841.21 km) |
| Houston to Palaiseau | 5,023.77 mi (8,084.98 km) |
| Houston to Pamiers | 5,167.61 mi (8,316.46 km) |
| Houston to Panazol | 5,070.82 mi (8,160.69 km) |
| Houston to Pantin | 5,024.70 mi (8,086.48 km) |
| Houston to Paray-le-Monial | 5,171.93 mi (8,323.42 km) |
