| Seaford to Nasaud | 1,121.80 mi (1,805.37 km) |
| Seaford to Navodari | 1,392.26 mi (2,240.63 km) |
| Seaford to Negresti-Oas | 1,064.73 mi (1,713.52 km) |
| Seaford to Nehoiu | 1,258.98 mi (2,026.13 km) |
| Seaford to Ocna Mures | 1,121.97 mi (1,805.64 km) |
| Seaford to Odobesti | 1,279.51 mi (2,059.17 km) |
| Seaford to Odorheiu Secuiesc | 1,186.81 mi (1,909.98 km) |
| Seaford to Oltenita | 1,314.86 mi (2,116.07 km) |
| Seaford to Onesti | 1,252.29 mi (2,015.37 km) |
| Seaford to Oradea | 1,018.98 mi (1,639.89 km) |
| Seaford to Orastie | 1,109.31 mi (1,785.26 km) |
| Seaford to Oravita | 1,070.44 mi (1,722.71 km) |
| Seaford to Orsova | 1,111.45 mi (1,788.71 km) |
| Seaford to Otelu Rosu | 1,083.19 mi (1,743.23 km) |
| Seaford to Otopeni | 1,274.73 mi (2,051.48 km) |
