| Penafiel to Morristown (New Jersey) | 3,363.14 mi (5,412.45 km) |
| Penafiel to Morristown (Tennessee) | 3,931.55 mi (6,327.23 km) |
| Penafiel to Morrisville (North Carolina) | 3,726.17 mi (5,996.69 km) |
| Penafiel to Morro Bay (California) | 5,638.73 mi (9,074.67 km) |
| Penafiel to Morton (Illinois) | 4,070.36 mi (6,550.60 km) |
| Penafiel to Morton Grove (Illinois) | 3,946.35 mi (6,351.04 km) |
| Penafiel to Moscow (Idaho) | 4,953.05 mi (7,971.16 km) |
| Penafiel to Moses Lake (Washington) | 5,014.58 mi (8,070.19 km) |
| Penafiel to Moss Bluff (Louisiana) | 4,632.79 mi (7,455.75 km) |
| Penafiel to Moss Point (Mississippi) | 4,399.26 mi (7,079.93 km) |
| Penafiel to Moultrie (Georgia) | 4,135.55 mi (6,655.52 km) |
| Penafiel to Mounds View (Minnesota) | 4,082.80 mi (6,570.64 km) |
| Penafiel to Mount Airy (North Carolina) | 3,791.01 mi (6,101.03 km) |
| Penafiel to Mount Clemens (Michigan) | 3,705.59 mi (5,963.58 km) |
| Penafiel to Mount Dora (Florida) | 4,116.38 mi (6,624.67 km) |
