| Port Neches to Manerbio | 5,390.90 mi (8,675.82 km) |
| Port Neches to Manfredonia | 5,774.21 mi (9,292.69 km) |
| Port Neches to Maniago | 5,468.06 mi (8,800.00 km) |
| Port Neches to Mantova | 5,425.81 mi (8,731.99 km) |
| Port Neches to Maranello | 5,451.36 mi (8,773.12 km) |
| Port Neches to Marano di Napoli | 5,728.61 mi (9,219.31 km) |
| Port Neches to Marano Vicentino | 5,432.80 mi (8,743.25 km) |
| Port Neches to Marcianise | 5,728.51 mi (9,219.15 km) |
| Port Neches to Marcon | 5,473.66 mi (8,809.00 km) |
| Port Neches to Mareno di Piave | 5,465.27 mi (8,795.50 km) |
| Port Neches to Margherita di Savoia | 5,794.66 mi (9,325.61 km) |
| Port Neches to Mariano Comense | 5,339.60 mi (8,593.25 km) |
| Port Neches to Marigliano | 5,738.86 mi (9,235.81 km) |
| Port Neches to Marino | 5,629.95 mi (9,060.54 km) |
| Port Neches to Marostica | 5,440.26 mi (8,755.26 km) |
