| Arecibo to Manerbio | 4,689.95 mi (7,547.75 km) |
| Arecibo to Manfredonia | 5,008.54 mi (8,060.46 km) |
| Arecibo to Maniago | 4,809.16 mi (7,739.60 km) |
| Arecibo to Mantova | 4,722.99 mi (7,600.93 km) |
| Arecibo to Maranello | 4,730.40 mi (7,612.85 km) |
| Arecibo to Marano di Napoli | 4,927.54 mi (7,930.11 km) |
| Arecibo to Marano Vicentino | 4,750.80 mi (7,645.67 km) |
| Arecibo to Marcianise | 4,932.18 mi (7,937.58 km) |
| Arecibo to Marcon | 4,793.40 mi (7,714.24 km) |
| Arecibo to Mareno di Piave | 4,793.98 mi (7,715.16 km) |
| Arecibo to Margherita di Savoia | 5,023.49 mi (8,084.53 km) |
| Arecibo to Mariano Comense | 4,642.52 mi (7,471.42 km) |
| Arecibo to Marigliano | 4,940.96 mi (7,951.71 km) |
| Arecibo to Marino | 4,841.33 mi (7,791.37 km) |
| Arecibo to Marostica | 4,761.18 mi (7,662.38 km) |
