| Killarney to Marco de Canavezes | 754.14 mi (1,213.68 km) |
| Killarney to Marinha Grande | 850.90 mi (1,369.38 km) |
| Killarney to Massama | 919.15 mi (1,479.22 km) |
| Killarney to Matosinhos | 752.39 mi (1,210.85 km) |
| Killarney to Mealhada | 808.26 mi (1,300.76 km) |
| Killarney to Melgaco | 689.38 mi (1,109.45 km) |
| Killarney to Melres | 761.28 mi (1,225.15 km) |
| Killarney to Mira | 804.08 mi (1,294.05 km) |
| Killarney to Miranda do Corvo | 828.16 mi (1,332.79 km) |
| Killarney to Mirandela | 738.70 mi (1,188.82 km) |
| Killarney to Mogadouro | 752.62 mi (1,211.22 km) |
| Killarney to Moimenta da Beira | 770.70 mi (1,240.32 km) |
| Killarney to Moita | 926.80 mi (1,491.54 km) |
| Killarney to Moncao | 691.60 mi (1,113.03 km) |
| Killarney to Montalegre | 711.78 mi (1,145.50 km) |
