| - | CEL3 | Lutsel K'E | Lutsel K'E | |
| - | CJL5 | Lyncrest Airport | Winnipeg | |
| - | CYZY | Mackenzie | Mackenzie | |
| - | CJJ8 | Macklin | Macklin | |
| XMP | CFC4 | Macmillan Pass Airport | Macmillan Pass | |
| - | CJH3 | Maidstone | Maidstone | |
| YDK | - | Main Duck Island Airport | Main Duck Island | |
| YZE | CYZE | Manitoulin Airport | Gore Bay | |
| YEM | CYEM | Manitoulin East Municipal Airport | Manitowaning | |
| YMG | CYMG | Manitouwadge Airport | Manitouwadge | |
| YMW | CYMW | Maniwaki Airport | Maniwaki | |
| - | CFX4 | Manning | Manning | |
| - | CJQ4 | Maple Creek | Maple Creek | |
| YSP | CYSP | Marathon Airport | Marathon | |
| - | CCZ4 | Margaree | Margaree | |
| - | CFV6 | Margaret Lake | Margaret Lake | |
| YMC | - | Maricourt Airstrip | Maricourt | |
| - | CBM4 | Marilla | Marilla | |
| - | CNU8 | Markham | Toronto | |
| - | CSK3 | Mascouche Airport | Montreal | |
| YME | CYME | Matane Airport | Matane | |
| - | CJT2 | Matheson Island | Matheson Island | |
| - | CEV5 | Mayerthorpe | Mayerthorpe | |
| - | CAV4 | Mc Bride | Mc Bride | |
| - | CFC8 | Mc Donald'S Farm | Vulcan | |
| - | CFP4 | Mc Questen | Mc Questen | |
| - | CFL2 | Mcneill Petrocan | Empress | |
| - | CSL4 | Megantic | Megantic | |
| - | CJV9 | Melville Municipal | Melville | |
| YMB | CAD5 | Merritt Airport | Merritt | |
| YMR | - | Merry Island Airport | Merry Island | |
| - | CCB2 | Middle Stewiacke | Middle Stewiacke | |
| - | CBA4 | Midway | Midway | |
| - | CBM6 | Midway | Midway | |
| - | CBK7 | Mile 422 (Alaska Highway) | Toad River | |
| - | CEW5 | Milk River Airport | Milk River | |
| YMI | - | Minaki Airport | Minaki | |
| YLP | - | Mingan Airport | Mingan | |
| - | CFV3 | Mobil Bistcho | Mobil Bistcho | |
| - | CSD4 | Mont-Laurier | Mont-Laurier | |
| - | CSE5 | Montmagny | Montmagny | |
| YAD | - | Moose Lake Airport | Moose Lake | |
| - | CJB5 | Moosomin | Moosomin | |
| - | CJA3 | Morden | Morden | |
| - | CNS8 | Morrisburg | Morrisburg | |
| YMD | - | Mould Bay Airport | Mould Bay | |
| - | CBN6 | Mount Flett | Mount Flett | |
| - | CCE2 | Mount Pleasant | Mount Pleasant | |
| - | CPZ3 | Mountain View | Mountain View | |
| - | CBS4 | Mule Creek | Mule Creek | |