| SeaTac to Manerbio | 5,406.71 mi (8,701.25 km) |
| SeaTac to Manfredonia | 5,772.21 mi (9,289.48 km) |
| SeaTac to Maniago | 5,420.94 mi (8,724.16 km) |
| SeaTac to Mantova | 5,435.45 mi (8,747.50 km) |
| SeaTac to Maranello | 5,474.52 mi (8,810.39 km) |
| SeaTac to Marano di Napoli | 5,775.66 mi (9,295.02 km) |
| SeaTac to Marano Vicentino | 5,418.56 mi (8,720.32 km) |
| SeaTac to Marcianise | 5,770.37 mi (9,286.51 km) |
| SeaTac to Marcon | 5,448.01 mi (8,767.73 km) |
| SeaTac to Mareno di Piave | 5,432.01 mi (8,741.97 km) |
| SeaTac to Margherita di Savoia | 5,794.10 mi (9,324.70 km) |
| SeaTac to Mariano Comense | 5,363.31 mi (8,631.42 km) |
| SeaTac to Marigliano | 5,780.13 mi (9,302.23 km) |
| SeaTac to Marino | 5,685.56 mi (9,150.02 km) |
| SeaTac to Marostica | 5,421.16 mi (8,724.51 km) |
