| Poplar Bluff to Nasaud | 5,374.32 mi (8,649.13 km) |
| Poplar Bluff to Navodari | 5,662.09 mi (9,112.25 km) |
| Poplar Bluff to Negresti-Oas | 5,313.18 mi (8,550.74 km) |
| Poplar Bluff to Nehoiu | 5,531.30 mi (8,901.77 km) |
| Poplar Bluff to Ocna Mures | 5,396.22 mi (8,684.38 km) |
| Poplar Bluff to Odobesti | 5,538.26 mi (8,912.97 km) |
| Poplar Bluff to Odorheiu Secuiesc | 5,450.70 mi (8,772.05 km) |
| Poplar Bluff to Oltenita | 5,603.43 mi (9,017.84 km) |
| Poplar Bluff to Onesti | 5,504.46 mi (8,858.57 km) |
| Poplar Bluff to Oradea | 5,296.03 mi (8,523.14 km) |
| Poplar Bluff to Orastie | 5,397.33 mi (8,686.16 km) |
| Poplar Bluff to Oravita | 5,378.61 mi (8,656.04 km) |
| Poplar Bluff to Orsova | 5,419.17 mi (8,721.31 km) |
| Poplar Bluff to Otelu Rosu | 5,381.61 mi (8,660.87 km) |
| Poplar Bluff to Otopeni | 5,561.07 mi (8,949.67 km) |
