| Seia to Miedzychod | 1,391.35 mi (2,239.17 km) |
| Seia to Miedzyrzec Podlaski | 1,645.08 mi (2,647.51 km) |
| Seia to Miedzyrzecz | 1,375.49 mi (2,213.64 km) |
| Seia to Mielec | 1,556.73 mi (2,505.32 km) |
| Seia to Mikolow | 1,446.90 mi (2,328.57 km) |
| Seia to Milanowek | 1,563.69 mi (2,516.52 km) |
| Seia to Milicz | 1,413.44 mi (2,274.71 km) |
| Seia to Minsk Mazowiecki | 1,600.17 mi (2,575.22 km) |
| Seia to Mlawa | 1,575.84 mi (2,536.07 km) |
| Seia to Mogilno | 1,470.61 mi (2,366.72 km) |
| Seia to Monki | 1,677.33 mi (2,699.41 km) |
| Seia to Morag | 1,581.69 mi (2,545.48 km) |
| Seia to Mosina | 1,416.65 mi (2,279.88 km) |
| Seia to Mragowo | 1,631.21 mi (2,625.17 km) |
| Seia to Murowana Goslina | 1,432.76 mi (2,305.81 km) |
