| Harwich to Los Llanos de Aridane | 1,886.69 mi (3,036.34 km) |
| Harwich to Los Palacios y Villafranca | 1,078.98 mi (1,736.45 km) |
| Harwich to Luanco | 661.20 mi (1,064.10 km) |
| Harwich to Lucena | 1,042.36 mi (1,677.52 km) |
| Harwich to Lugo | 739.85 mi (1,190.67 km) |
| Harwich to Lumbreras | 1,004.07 mi (1,615.89 km) |
| Harwich to Madrid | 830.01 mi (1,335.77 km) |
| Harwich to Madridejos | 891.49 mi (1,434.72 km) |
| Harwich to Mahon | 844.40 mi (1,358.93 km) |
| Harwich to Mairena del Alcor | 1,062.46 mi (1,709.87 km) |
| Harwich to Mairena del Aljarafe | 1,069.96 mi (1,721.94 km) |
| Harwich to Majadahonda | 828.60 mi (1,333.51 km) |
| Harwich to Malaga | 1,087.30 mi (1,749.85 km) |
| Harwich to Malgrat de Mar | 714.24 mi (1,149.46 km) |
| Harwich to Manacor | 859.31 mi (1,382.92 km) |
