| Galveston to Orthez | 5,050.44 mi (8,127.90 km) |
| Galveston to Orvault | 4,907.35 mi (7,897.62 km) |
| Galveston to Osny | 5,012.77 mi (8,067.28 km) |
| Galveston to Ostwald | 5,258.17 mi (8,462.20 km) |
| Galveston to Ouistreham | 4,910.81 mi (7,903.18 km) |
| Galveston to Oullins | 5,229.81 mi (8,416.57 km) |
| Galveston to Outreau | 4,946.85 mi (7,961.19 km) |
| Galveston to Oyonnax | 5,248.51 mi (8,446.65 km) |
| Galveston to Ozoir-la-Ferriere | 5,046.40 mi (8,121.39 km) |
| Galveston to Pace | 4,877.48 mi (7,849.55 km) |
| Galveston to Palaiseau | 5,030.35 mi (8,095.57 km) |
| Galveston to Pamiers | 5,169.67 mi (8,319.79 km) |
| Galveston to Panazol | 5,074.91 mi (8,167.28 km) |
| Galveston to Pantin | 5,031.46 mi (8,097.35 km) |
| Galveston to Paray-le-Monial | 5,177.24 mi (8,331.97 km) |
