| Castlebar to Maisons-Alfort | 614.16 mi (988.39 km) |
| Castlebar to Maisons-Laffitte | 597.71 mi (961.91 km) |
| Castlebar to Maizieres-les-Metz | 735.92 mi (1,184.35 km) |
| Castlebar to Malakoff | 608.62 mi (979.47 km) |
| Castlebar to Mandelieu-la-Napoule | 1,023.09 mi (1,646.51 km) |
| Castlebar to Manosque | 970.96 mi (1,562.61 km) |
| Castlebar to Mantes-la-Jolie | 580.74 mi (934.61 km) |
| Castlebar to Mantes-la-Ville | 581.24 mi (935.42 km) |
| Castlebar to Marck | 514.39 mi (827.84 km) |
| Castlebar to Marcq-en-Baroeul | 567.65 mi (913.54 km) |
| Castlebar to Margny-les-Compiegne | 602.09 mi (968.97 km) |
| Castlebar to Marguerittes | 928.30 mi (1,493.96 km) |
| Castlebar to Marignane | 976.03 mi (1,570.77 km) |
| Castlebar to Marly | 741.03 mi (1,192.57 km) |
| Castlebar to Marly | 595.50 mi (958.36 km) |
