| Sintra to Mitchell (South Dakota) | 4,386.32 mi (7,059.10 km) |
| Sintra to Mitchellville (Maryland) | 3,538.15 mi (5,694.11 km) |
| Sintra to Moberly (Missouri) | 4,278.09 mi (6,884.92 km) |
| Sintra to Mobile (Alabama) | 4,367.42 mi (7,028.68 km) |
| Sintra to Modesto (California) | 5,601.10 mi (9,014.10 km) |
| Sintra to Mokena (Illinois) | 3,998.28 mi (6,434.61 km) |
| Sintra to Moline (Illinois) | 4,121.15 mi (6,632.36 km) |
| Sintra to Moncks Corner (South Carolina) | 3,868.76 mi (6,226.17 km) |
| Sintra to Monfort Heights (Ohio) | 3,912.98 mi (6,297.34 km) |
| Sintra to Monmouth (Oregon) | 5,346.01 mi (8,603.56 km) |
| Sintra to Monroe (Georgia) | 4,037.27 mi (6,497.35 km) |
| Sintra to Monroe (Louisiana) | 4,500.47 mi (7,242.80 km) |
| Sintra to Monroe (Michigan) | 3,776.43 mi (6,077.58 km) |
| Sintra to Monroe (North Carolina) | 3,839.14 mi (6,178.49 km) |
| Sintra to Monroe (Ohio) | 3,893.54 mi (6,266.04 km) |
