| Sintra to Mickleover | 1,043.28 mi (1,679.00 km) |
| Sintra to Middlesbrough | 1,154.73 mi (1,858.35 km) |
| Sintra to Middleton | 1,074.82 mi (1,729.76 km) |
| Sintra to Middlewich | 1,047.62 mi (1,685.99 km) |
| Sintra to Midsomer Norton | 925.17 mi (1,488.92 km) |
| Sintra to Mildenhall | 1,048.97 mi (1,688.16 km) |
| Sintra to Milford Haven | 916.60 mi (1,475.13 km) |
| Sintra to Mill Hill | 989.88 mi (1,593.05 km) |
| Sintra to Milngavie | 1,207.22 mi (1,942.84 km) |
| Sintra to Milnrow | 1,079.51 mi (1,737.30 km) |
| Sintra to Milton | 1,043.11 mi (1,678.72 km) |
| Sintra to Milton Keynes | 1,004.33 mi (1,616.32 km) |
| Sintra to Minehead | 903.73 mi (1,454.41 km) |
| Sintra to Minster | 1,001.71 mi (1,612.09 km) |
| Sintra to Mirfield | 1,090.52 mi (1,755.02 km) |
