| Castelo Branco to Manassas (Virginia) | 3,642.03 mi (5,861.27 km) |
| Castelo Branco to Manassas Park (Virginia) | 3,639.36 mi (5,856.98 km) |
| Castelo Branco to Manatí (Puerto Rico) | 3,779.07 mi (6,081.82 km) |
| Castelo Branco to Manchester (Missouri) | 4,270.42 mi (6,872.58 km) |
| Castelo Branco to Manchester (New Hampshire) | 3,239.87 mi (5,214.07 km) |
| Castelo Branco to Manchester (Tennessee) | 4,166.57 mi (6,705.45 km) |
| Castelo Branco to Manchester (Virginia) | 3,681.95 mi (5,925.52 km) |
| Castelo Branco to Mandan (North Dakota) | 4,432.60 mi (7,133.57 km) |
| Castelo Branco to Mandeville (Louisiana) | 4,549.27 mi (7,321.34 km) |
| Castelo Branco to Mango (Florida) | 4,244.18 mi (6,830.34 km) |
| Castelo Branco to Manhattan (Kansas) | 4,529.01 mi (7,288.74 km) |
| Castelo Branco to Manhattan (New York) | 3,414.69 mi (5,495.41 km) |
| Castelo Branco to Manhattan Beach (California) | 5,703.82 mi (9,179.41 km) |
| Castelo Branco to Manitowoc (Wisconsin) | 3,961.71 mi (6,375.75 km) |
| Castelo Branco to Mankato (Minnesota) | 4,236.24 mi (6,817.57 km) |
