| Seclin to Miedzyrzec Podlaski | 857.05 mi (1,379.29 km) |
| Seclin to Miedzyrzecz | 555.14 mi (893.41 km) |
| Seclin to Mielec | 808.40 mi (1,300.99 km) |
| Seclin to Mikolow | 698.76 mi (1,124.54 km) |
| Seclin to Milanowek | 767.84 mi (1,235.72 km) |
| Seclin to Milicz | 621.97 mi (1,000.96 km) |
| Seclin to Minsk Mazowiecki | 805.34 mi (1,296.06 km) |
| Seclin to Mlawa | 759.17 mi (1,221.77 km) |
| Seclin to Mogilno | 655.33 mi (1,054.65 km) |
| Seclin to Monki | 861.90 mi (1,387.10 km) |
| Seclin to Morag | 750.09 mi (1,207.16 km) |
| Seclin to Mosina | 606.03 mi (975.31 km) |
| Seclin to Mragowo | 804.26 mi (1,294.33 km) |
| Seclin to Murowana Goslina | 615.76 mi (990.97 km) |
| Seclin to Myslenice | 747.99 mi (1,203.77 km) |
