| Mission to Miranda de Ebro | 5,269.63 mi (8,480.64 km) |
| Mission to Mislata | 5,480.12 mi (8,819.41 km) |
| Mission to Moana | 5,003.88 mi (8,052.97 km) |
| Mission to Moguer | 5,222.59 mi (8,404.94 km) |
| Mission to Molina de Segura | 5,482.95 mi (8,823.95 km) |
| Mission to Molins de Rey | 5,536.89 mi (8,910.76 km) |
| Mission to Mollerusa | 5,478.24 mi (8,816.37 km) |
| Mission to Mollet | 5,542.18 mi (8,919.28 km) |
| Mission to Moncada | 5,542.63 mi (8,920.00 km) |
| Mission to Moncada | 5,479.01 mi (8,817.61 km) |
| Mission to Monforte de Lemos | 5,057.48 mi (8,139.23 km) |
| Mission to Monforte del Cid | 5,497.14 mi (8,846.79 km) |
| Mission to Mongat | 5,547.47 mi (8,927.79 km) |
| Mission to Monovar | 5,490.16 mi (8,835.56 km) |
| Mission to Monserrat | 5,474.53 mi (8,810.40 km) |
