| Sioux City to Marasesti | 5,418.23 mi (8,719.80 km) |
| Sioux City to Marghita | 5,190.33 mi (8,353.02 km) |
| Sioux City to Marginea | 5,272.93 mi (8,485.96 km) |
| Sioux City to Matca | 5,428.98 mi (8,737.10 km) |
| Sioux City to Medgidia | 5,537.74 mi (8,912.13 km) |
| Sioux City to Media | 5,315.61 mi (8,554.66 km) |
| Sioux City to Miercurea-Ciuc | 5,349.29 mi (8,608.85 km) |
| Sioux City to Mioveni | 5,396.95 mi (8,685.56 km) |
| Sioux City to Mizil | 5,441.41 mi (8,757.10 km) |
| Sioux City to Moinesti | 5,366.03 mi (8,635.79 km) |
| Sioux City to Moisei | 5,242.44 mi (8,436.89 km) |
| Sioux City to Moldova Noua | 5,304.08 mi (8,536.09 km) |
| Sioux City to Moreni | 5,417.76 mi (8,719.04 km) |
| Sioux City to Motru | 5,342.19 mi (8,597.43 km) |
| Sioux City to Murfatlar | 5,546.39 mi (8,926.06 km) |
