| TLR | KTLR | Mefford Field | Tulare | |
| - | - | Melbourne Mun - Miller | Melbourne | |
| - | - | Melon | Rocky Ford | |
| CIL | - | Melsing Creek Airport | Council | |
| - | - | Memaloose | Imnaha | |
| MHL | KMHL | Memorial Municipal Airport | Marshall | |
| - | - | Memphis Memorial | Memphis | |
| - | - | Memphis Municipal | Memphis | |
| - | - | Menard Co | Menard | |
| - | - | Mendota | Mendota | |
| - | - | Menomonie Mun-Score | Menomonie | |
| - | - | Mentone | Mentone | |
| - | - | Mercer Co | Aledo | |
| - | KHZE | Mercer Co Regional | Hazen | |
| BLF | KBLF | Mercer County Airport | Bluefield | |
| - | KMMK | Meriden Markham Municipal | Meriden | |
| - | KNMM | Meridian Nas | Meridian | |
| - | - | Merillat | Tecumseh | |
| - | KSCD | Merkel Sylacauga Municipal | Sylacauga | |
| MRI | PAMR | Merrill Field | Anchorage | |
| RRL | KRRL | Merrill Municipal Airport | Merrill | |
| COI | KCOI | Merritt Island Airport | Cocoa | |
| - | - | Merrymeeting | Bowdoinham | |
| - | - | Mesquite | Mesquite | |
| MFH | - | Mesquite Airport | Mesquite | |
| - | KHQZ | Mesquite Metro | Mesquite | |
| - | - | Methow Valley State | Winthrop | |
| MTX | - | Metro Field | Fairbanks | |
| - | - | Metropolis Municipal | Metropolis | |
| ODM | - | Metropolitan Area Airport | Oakland | |
| - | KMHP | Metter Municipal | Metter | |
| CEV | KCEV | Mettle Field | Connersville | |
| - | KLXY | Mexia-Limestone Co | Mexia | |
| - | - | Mexico Farms | Cumberland | |
| - | - | Mexico Memorial | Mexico | |
| - | - | Meyers-Diver'S | Tecumseh | |
| MIO | KMIO | Miami Airport | Miami | |
| JDM | - | Miami Downtown Heliport | Miami | |
| OXD | KOXD | Miami University Airport | Oxford | |
| - | - | Miami-Roberts Co | Miami | |
| - | - | Michael | Cicero | |
| DPG | KDPG | Michael Army Air Field | Dugway | |
| MGC | KMGC | Michigan City Airport | Michigan City | |
| - | - | Micro | Stuart | |
| - | - | Mid Continent | Hayti | |
| - | - | Mid Florida Air Svc | Eustis | |
| - | - | Mid Valley | Los Lunas | |
| - | - | Mid Valley | Weslaco | |
| - | - | Mid-America Industrial | Pryor | |
| - | - | Mid-Atlantic Soaring Center | Fairfield | |