| Sintra to Lye | 1,005.84 mi (1,618.74 km) |
| Sintra to Lymington | 909.60 mi (1,463.87 km) |
| Sintra to Lymm | 1,059.50 mi (1,705.10 km) |
| Sintra to Mablethorpe | 1,103.76 mi (1,776.34 km) |
| Sintra to Macclesfield | 1,056.10 mi (1,699.63 km) |
| Sintra to Mackworth | 1,045.22 mi (1,682.11 km) |
| Sintra to Madeley | 1,011.87 mi (1,628.44 km) |
| Sintra to Maesteg | 927.45 mi (1,492.58 km) |
| Sintra to Maghull | 1,061.58 mi (1,708.45 km) |
| Sintra to Maidenhead | 973.66 mi (1,566.96 km) |
| Sintra to Maidstone | 986.47 mi (1,587.58 km) |
| Sintra to Maldon | 1,016.62 mi (1,636.09 km) |
| Sintra to Maltby | 1,082.18 mi (1,741.59 km) |
| Sintra to Manchester | 1,069.09 mi (1,720.53 km) |
| Sintra to Mansfield | 1,064.70 mi (1,713.47 km) |
