| Oatfield to Nasaud | 5,726.81 mi (9,216.41 km) |
| Oatfield to Navodari | 5,990.87 mi (9,641.37 km) |
| Oatfield to Negresti-Oas | 5,671.64 mi (9,127.63 km) |
| Oatfield to Nehoiu | 5,884.39 mi (9,470.01 km) |
| Oatfield to Ocna Mures | 5,773.68 mi (9,291.84 km) |
| Oatfield to Odobesti | 5,870.99 mi (9,448.44 km) |
| Oatfield to Odorheiu Secuiesc | 5,804.85 mi (9,342.01 km) |
| Oatfield to Oltenita | 5,971.85 mi (9,610.76 km) |
| Oatfield to Onesti | 5,834.14 mi (9,389.15 km) |
| Oatfield to Oradea | 5,693.70 mi (9,163.12 km) |
| Oatfield to Orastie | 5,795.53 mi (9,327.01 km) |
| Oatfield to Oravita | 5,817.00 mi (9,361.56 km) |
| Oatfield to Orsova | 5,851.07 mi (9,416.39 km) |
| Oatfield to Otelu Rosu | 5,800.10 mi (9,334.36 km) |
| Oatfield to Otopeni | 5,931.85 mi (9,546.40 km) |
