| SeaTac to Melzo | 5,380.97 mi (8,659.84 km) |
| SeaTac to Mendicino | 5,924.95 mi (9,535.29 km) |
| SeaTac to Menfi | 5,945.37 mi (9,568.15 km) |
| SeaTac to Mentana | 5,670.02 mi (9,125.01 km) |
| SeaTac to Merano | 5,354.01 mi (8,616.45 km) |
| SeaTac to Merate | 5,369.56 mi (8,641.47 km) |
| SeaTac to Mercato San Severino | 5,797.00 mi (9,329.37 km) |
| SeaTac to Mercogliano | 5,787.86 mi (9,314.67 km) |
| SeaTac to Mesagne | 5,881.81 mi (9,465.85 km) |
| SeaTac to Messina | 5,975.25 mi (9,616.23 km) |
| SeaTac to Mestre | 5,450.39 mi (8,771.55 km) |
| SeaTac to Mestrino | 5,441.56 mi (8,757.34 km) |
| SeaTac to Milan | 5,377.25 mi (8,653.85 km) |
| SeaTac to Milazzo | 5,965.95 mi (9,601.27 km) |
| SeaTac to Minerbio | 5,484.35 mi (8,826.21 km) |
