| Castelo Branco to Mountain Brook (Alabama) | 4,268.39 mi (6,869.32 km) |
| Castelo Branco to Mountain Home (Arkansas) | 4,438.66 mi (7,143.34 km) |
| Castelo Branco to Mountain Home (Idaho) | 5,165.92 mi (8,313.75 km) |
| Castelo Branco to Mountain House (California) | 5,643.24 mi (9,081.91 km) |
| Castelo Branco to Mountain Park (Georgia) | 4,126.65 mi (6,641.20 km) |
| Castelo Branco to Mountain Top (Pennsylvania) | 3,499.07 mi (5,631.22 km) |
| Castelo Branco to Mountain View (California) | 5,681.88 mi (9,144.10 km) |
| Castelo Branco to Mountlake Terrace (Washington) | 5,186.21 mi (8,346.39 km) |
| Castelo Branco to Mukilteo (Washington) | 5,180.45 mi (8,337.12 km) |
| Castelo Branco to Muncie (Indiana) | 3,977.43 mi (6,401.05 km) |
| Castelo Branco to Mundelein (Illinois) | 4,033.08 mi (6,490.61 km) |
| Castelo Branco to Munhall (Pennsylvania) | 3,711.18 mi (5,972.56 km) |
| Castelo Branco to Munster (Indiana) | 4,032.79 mi (6,490.14 km) |
| Castelo Branco to Murfreesboro (Tennessee) | 4,169.58 mi (6,710.28 km) |
| Castelo Branco to Murphy (Texas) | 4,765.08 mi (7,668.66 km) |
