| Castelo Branco to Marysville (California) | 5,577.33 mi (8,975.84 km) |
| Castelo Branco to Marysville (Ohio) | 3,880.59 mi (6,245.20 km) |
| Castelo Branco to Marysville (Washington) | 5,167.34 mi (8,316.03 km) |
| Castelo Branco to Maryville (Missouri) | 4,408.68 mi (7,095.08 km) |
| Castelo Branco to Maryville (Tennessee) | 4,054.30 mi (6,524.77 km) |
| Castelo Branco to Mason (Ohio) | 3,952.35 mi (6,360.69 km) |
| Castelo Branco to Mason City (Iowa) | 4,236.70 mi (6,818.30 km) |
| Castelo Branco to Massapequa (New York) | 3,393.61 mi (5,461.49 km) |
| Castelo Branco to Massapequa Park (New York) | 3,392.23 mi (5,459.26 km) |
| Castelo Branco to Massillon (Ohio) | 3,777.11 mi (6,078.68 km) |
| Castelo Branco to Mastic (New York) | 3,359.69 mi (5,406.90 km) |
| Castelo Branco to Mastic Beach (New York) | 3,360.25 mi (5,407.81 km) |
| Castelo Branco to Matteson (Illinois) | 4,045.12 mi (6,510.00 km) |
| Castelo Branco to Matthews (North Carolina) | 3,913.64 mi (6,298.39 km) |
| Castelo Branco to Mattoon (Illinois) | 4,139.83 mi (6,662.42 km) |
