| Norristown to Manerbio | 4,141.09 mi (6,664.44 km) |
| Norristown to Manfredonia | 4,521.68 mi (7,276.94 km) |
| Norristown to Maniago | 4,223.69 mi (6,797.37 km) |
| Norristown to Mantova | 4,176.14 mi (6,720.85 km) |
| Norristown to Maranello | 4,200.18 mi (6,759.53 km) |
| Norristown to Marano di Napoli | 4,473.04 mi (7,198.66 km) |
| Norristown to Marano Vicentino | 4,185.38 mi (6,735.72 km) |
| Norristown to Marcianise | 4,473.27 mi (7,199.02 km) |
| Norristown to Marcon | 4,226.86 mi (6,802.47 km) |
| Norristown to Mareno di Piave | 4,219.40 mi (6,790.46 km) |
| Norristown to Margherita di Savoia | 4,541.82 mi (7,309.35 km) |
| Norristown to Mariano Comense | 4,089.68 mi (6,581.71 km) |
| Norristown to Marigliano | 4,483.57 mi (7,215.61 km) |
| Norristown to Marino | 4,374.62 mi (7,040.27 km) |
| Norristown to Marostica | 4,193.25 mi (6,748.38 km) |
