| Galveston to Nasaud | 5,943.68 mi (9,565.43 km) |
| Galveston to Navodari | 6,231.07 mi (10,027.94 km) |
| Galveston to Negresti-Oas | 5,882.57 mi (9,467.09 km) |
| Galveston to Nehoiu | 6,099.53 mi (9,816.25 km) |
| Galveston to Ocna Mures | 5,963.70 mi (9,597.65 km) |
| Galveston to Odobesti | 6,107.83 mi (9,829.60 km) |
| Galveston to Odorheiu Secuiesc | 6,019.42 mi (9,687.32 km) |
| Galveston to Oltenita | 6,170.01 mi (9,929.68 km) |
| Galveston to Onesti | 6,074.45 mi (9,775.88 km) |
| Galveston to Oradea | 5,862.78 mi (9,435.23 km) |
| Galveston to Orastie | 5,963.25 mi (9,596.92 km) |
| Galveston to Oravita | 5,941.44 mi (9,561.82 km) |
| Galveston to Orsova | 5,982.20 mi (9,627.41 km) |
| Galveston to Otelu Rosu | 5,946.06 mi (9,569.26 km) |
| Galveston to Otopeni | 6,127.80 mi (9,861.74 km) |
