| Castelo Branco to Mineral Wells (Texas) | 4,842.83 mi (7,793.78 km) |
| Castelo Branco to Minneapolis (Minnesota) | 4,179.33 mi (6,725.98 km) |
| Castelo Branco to Minnehaha (Washington) | 5,299.48 mi (8,528.68 km) |
| Castelo Branco to Minneola (Florida) | 4,191.93 mi (6,746.25 km) |
| Castelo Branco to Minnetonka (Minnesota) | 4,188.62 mi (6,740.93 km) |
| Castelo Branco to Minooka (Illinois) | 4,071.43 mi (6,552.33 km) |
| Castelo Branco to Minot (North Dakota) | 4,397.48 mi (7,077.06 km) |
| Castelo Branco to Mint Hill (North Carolina) | 3,908.86 mi (6,290.71 km) |
| Castelo Branco to Miramar (Florida) | 4,217.20 mi (6,786.92 km) |
| Castelo Branco to Mishawaka (Indiana) | 3,967.23 mi (6,384.63 km) |
| Castelo Branco to Mission (Texas) | 5,124.50 mi (8,247.09 km) |
| Castelo Branco to Mission Bend (Texas) | 4,851.08 mi (7,807.06 km) |
| Castelo Branco to Mission Viejo (California) | 5,686.20 mi (9,151.06 km) |
| Castelo Branco to Missoula (Montana) | 4,937.09 mi (7,945.48 km) |
| Castelo Branco to Missouri City (Texas) | 4,850.01 mi (7,805.33 km) |
