| Smithville to Nasaud | 5,371.72 mi (8,644.95 km) |
| Smithville to Navodari | 5,659.38 mi (9,107.88 km) |
| Smithville to Negresti-Oas | 5,310.77 mi (8,546.85 km) |
| Smithville to Nehoiu | 5,531.00 mi (8,901.29 km) |
| Smithville to Ocna Mures | 5,398.30 mi (8,687.72 km) |
| Smithville to Odobesti | 5,534.52 mi (8,906.95 km) |
| Smithville to Odorheiu Secuiesc | 5,449.46 mi (8,770.06 km) |
| Smithville to Oltenita | 5,606.80 mi (9,023.27 km) |
| Smithville to Onesti | 5,499.71 mi (8,850.93 km) |
| Smithville to Oradea | 5,300.25 mi (8,529.92 km) |
| Smithville to Orastie | 5,403.06 mi (8,695.38 km) |
| Smithville to Oravita | 5,391.15 mi (8,676.22 km) |
| Smithville to Orsova | 5,431.13 mi (8,740.56 km) |
| Smithville to Otelu Rosu | 5,390.69 mi (8,675.47 km) |
| Smithville to Otopeni | 5,564.27 mi (8,954.82 km) |
