| Seia to Marghita | 1,559.19 mi (2,509.27 km) |
| Seia to Marginea | 1,724.71 mi (2,775.65 km) |
| Seia to Matca | 1,800.31 mi (2,897.32 km) |
| Seia to Medgidia | 1,840.78 mi (2,962.45 km) |
| Seia to Media | 1,647.83 mi (2,651.93 km) |
| Seia to Miercurea-Ciuc | 1,717.64 mi (2,764.27 km) |
| Seia to Mioveni | 1,675.36 mi (2,696.23 km) |
| Seia to Mizil | 1,748.59 mi (2,814.08 km) |
| Seia to Moinesti | 1,750.24 mi (2,816.73 km) |
| Seia to Moisei | 1,663.77 mi (2,677.58 km) |
| Seia to Moldova Noua | 1,514.81 mi (2,437.86 km) |
| Seia to Moreni | 1,709.73 mi (2,751.55 km) |
| Seia to Motru | 1,578.98 mi (2,541.13 km) |
| Seia to Murfatlar | 1,848.45 mi (2,974.80 km) |
| Seia to Nasaud | 1,655.35 mi (2,664.02 km) |
