| SeaTac to Miranda de Ebro | 5,195.21 mi (8,360.88 km) |
| SeaTac to Mislata | 5,451.29 mi (8,773.00 km) |
| SeaTac to Moana | 5,030.05 mi (8,095.09 km) |
| SeaTac to Moguer | 5,361.46 mi (8,628.44 km) |
| SeaTac to Molina de Segura | 5,505.51 mi (8,860.27 km) |
| SeaTac to Molins de Rey | 5,415.83 mi (8,715.93 km) |
| SeaTac to Mollerusa | 5,370.22 mi (8,642.54 km) |
| SeaTac to Mollet | 5,414.66 mi (8,714.06 km) |
| SeaTac to Moncada | 5,416.77 mi (8,717.45 km) |
| SeaTac to Moncada | 5,447.95 mi (8,767.64 km) |
| SeaTac to Monforte de Lemos | 5,058.37 mi (8,140.65 km) |
| SeaTac to Monforte del Cid | 5,502.76 mi (8,855.84 km) |
| SeaTac to Mongat | 5,420.59 mi (8,723.59 km) |
| SeaTac to Monovar | 5,496.11 mi (8,845.13 km) |
| SeaTac to Monserrat | 5,452.00 mi (8,774.15 km) |
