| Oakland to Nasaud | 6,208.33 mi (9,991.35 km) |
| Oakland to Navodari | 6,478.05 mi (10,425.41 km) |
| Oakland to Negresti-Oas | 6,151.81 mi (9,900.38 km) |
| Oakland to Nehoiu | 6,367.51 mi (10,247.51 km) |
| Oakland to Ocna Mures | 6,252.51 mi (10,062.44 km) |
| Oakland to Odobesti | 6,356.47 mi (10,229.76 km) |
| Oakland to Odorheiu Secuiesc | 6,287.00 mi (10,117.95 km) |
| Oakland to Oltenita | 6,453.96 mi (10,386.65 km) |
| Oakland to Onesti | 6,319.62 mi (10,170.44 km) |
| Oakland to Oradea | 6,168.96 mi (9,927.98 km) |
| Oakland to Orastie | 6,271.86 mi (10,093.59 km) |
| Oakland to Oravita | 6,288.05 mi (10,119.64 km) |
| Oakland to Orsova | 6,323.42 mi (10,176.56 km) |
| Oakland to Otelu Rosu | 6,273.73 mi (10,096.59 km) |
| Oakland to Otopeni | 6,413.25 mi (10,321.12 km) |
