| Quarteira to McKeesport (Pennsylvania) | 3,765.35 mi (6,059.75 km) |
| Quarteira to McKinleyville (California) | 5,698.20 mi (9,170.37 km) |
| Quarteira to McKinney (Texas) | 4,816.36 mi (7,751.18 km) |
| Quarteira to McLean (Virginia) | 3,669.19 mi (5,904.99 km) |
| Quarteira to McMinnville (Oregon) | 5,463.89 mi (8,793.28 km) |
| Quarteira to McMinnville (Tennessee) | 4,191.48 mi (6,745.53 km) |
| Quarteira to McNair (Virginia) | 3,679.87 mi (5,922.18 km) |
| Quarteira to McPherson (Kansas) | 4,679.53 mi (7,530.98 km) |
| Quarteira to Mead Valley (California) | 5,750.82 mi (9,255.06 km) |
| Quarteira to Meadow Woods (Florida) | 4,196.49 mi (6,753.59 km) |
| Quarteira to Meadowbrook (Virginia) | 3,722.17 mi (5,990.25 km) |
| Quarteira to Meadville (Pennsylvania) | 3,747.64 mi (6,031.25 km) |
| Quarteira to Mebane (North Carolina) | 3,850.32 mi (6,196.49 km) |
| Quarteira to Mechanicsville (Virginia) | 3,711.05 mi (5,972.35 km) |
| Quarteira to Medford (Massachusetts) | 3,290.55 mi (5,295.62 km) |
