| SeaTac to Montevarchi | 5,552.11 mi (8,935.26 km) |
| SeaTac to Monticello Conte Otto | 5,428.16 mi (8,735.77 km) |
| SeaTac to Montichiari | 5,410.15 mi (8,706.79 km) |
| SeaTac to Montignoso | 5,487.85 mi (8,831.84 km) |
| SeaTac to Montopoli in Val d'Arno | 5,523.40 mi (8,889.05 km) |
| SeaTac to Monza | 5,372.45 mi (8,646.12 km) |
| SeaTac to Morbegno | 5,347.23 mi (8,605.53 km) |
| SeaTac to Mori | 5,398.72 mi (8,688.40 km) |
| SeaTac to Morlupo | 5,658.74 mi (9,106.87 km) |
| SeaTac to Morrovalle | 5,613.96 mi (9,034.80 km) |
| SeaTac to Mortara | 5,378.94 mi (8,656.57 km) |
| SeaTac to Mosciano Sant'Angelo | 5,655.62 mi (9,101.84 km) |
| SeaTac to Motta di Livenza | 5,441.74 mi (8,757.64 km) |
| SeaTac to Motta Sant'Anastasia | 6,003.21 mi (9,661.24 km) |
| SeaTac to Mottola | 5,860.01 mi (9,430.78 km) |
