| Name | Type | IATA | ICAO | City |
|---|---|---|---|---|
| Island Marina Water Aerodrome | Closed Airport | - | CA-0578 |
Barry's Bay |
| Island View Water Aerodrome | Seaplane Base | - | CSV6 |
Lake Scugog |
| Ivanhoe Airstrip | Small Airport | - | CA-0518 |
Ivanhoe |
| Jarvis RCAF | Closed Airport | - | CA-0434 |
Nanticoke |
| Jellicoe Airport | Closed Airport | - | CA-0173 |
- |
| Jenny's Landing Water Aerodrome | Seaplane Base | - | CA-0922 |
Kennisis Lake |
| John C. Munro Hamilton International Airport | Medium Airport Scheduled | YHM | CYHM |
Hamilton |
| Juergensen Field | Small Airport | - | CPG7 |
Centre Wellington |
| Jumping Cairbou Lake Water Aerodrome | Closed Airport | - | CA-0613 |
Temagami |
| Kakabeka Falls Airport | Small Airport | - | CKG8 |
Kakabeka Falls |
| Kamaniskeg Lake Water Aerodrome | Seaplane Base | - | CNP5 |
Combermere |
| Kapuskasing Airport | Medium Airport | YYU | CYYU |
Kapuskasing |
| Kars / Rideau Valley Air Park | Small Airport | - | CPL3 |
Kars |
| Kasabonika Airport | Medium Airport Scheduled | XKS | CYAQ |
Kasabonika |
| Kashabowie/Upper Shebandowan Lake Seaplane Base | Seaplane Base | - | CKF5 |
- |
| Kashechewan Airport | Small Airport Scheduled | ZKE | CZKE |
Kashechewan |
| Katrine (Three Mile Lake) Water Aerodrome | Seaplane Base | - | CTM5 |
Burk's Falls |
| Kawartha Lakes Municipal Airport | Small Airport | - | CNF4 |
Lindsay |
| Keene/Elmhirst's Resort Seaplane Base | Seaplane Base | - | CNQ6 |
- |
| Keewaywin Airport | Small Airport Scheduled | KEW | CPV8 |
Keewaywin |
| Kelly Lake Heliport | Heliport | - | CSU8 |
Sudbury |
| Kenakskaniss Airport | Closed Airport | - | CA-0185 |
- |
| Kenmore Aerodrome | Small Airport | - | CA-1185 |
Kenmore |
| Kennisis Lake Seaplane Base | Seaplane Base | - | CKS2 |
Kennisis Lake |
| Kenora Airport | Medium Airport Scheduled | YQK | CYQK |
Kenora |
| Kenora (Lake of the Woods District Hospital) Heliport | Heliport | - | CJG6 |
Kenora |
| Kenora Seaplane Base | Seaplane Base | - | CJM9 |
- |
| Kilbride (Bot) | Heliport | - | CCB8 |
- |
| Killarney Airport | Small Airport | - | CPT2 |
Killarney |
| Killarney (Killarney Mountain Lodge) Seaplane Base | Seaplane Base | - | CKY4 |
Killarney |
| Kincardine Municipal Airport | Medium Airport | YKD | CYKM |
Kincardine |
| Kincardine (South Bruce Grey Health Centre Hospital) Heliport | Heliport | - | CPU2 |
Kincardine |
| Kingbridge Heliport | Heliport | - | CA-0950 |
King City |
| King City Airport | Closed Airport | - | CA-0011 |
King City |
| Kingfisher Lake Airport | Small Airport Scheduled | KIF | CNM5 |
Kingfisher Lake |
| Kingston Airfield | Closed Airport | - | CA-0312 |
Kingston |
| Kingston (General Hospital) Heliport | Heliport | - | CPJ7 |
Kingston |
| Kingston Norman Rogers Airport | Medium Airport | YGK | CYGK |
Kingston |
| Kingston / Riverland Airfield | Small Airport | - | CRL9 |
Kingston |
| Kippen Airfield | Closed Airport | - | CA-0908 |
Seaforth |
| Kirkfield / Balsam Lake Airfield | Small Airport | - | CKD8 |
Kirkfield |
| Kirkland Lake Airport | Medium Airport | YKX | CYKX |
Kirkland Lake |
| Kohler Airstrip | Closed Airport | - | CA-0436 |
Cayuga |
| Lac La Croix Water Aerodrome | Seaplane Base | - | CJU9 |
- |
| Lake Muskoka/Alport Bay Seaplane Base | Seaplane Base | - | CLM3 |
- |
| Lake Muskoka/Boyd Bay Seaplane Base | Seaplane Base | - | CBB3 |
Lake Muskoka |
| Lake Muskoka / Cottage Air Seaplane Base | Seaplane Base | - | CCA4 |
Bracebridge |
| Lake Muskoka East (Milford Bay) Seaplane Base | Seaplane Base | - | CMB6 |
Milford Bay |
| Lake Muskoka/Mortimer'S Point Seaplane Base | Seaplane Base | - | CNC7 |
Port Carling |
| Lake Muskoka South Seaplane Base | Seaplane Base | - | CLM5 |
Lake Muskoka |
| Lake Rosseau/Arthurlie Bay Seaplane Base | Seaplane Base | - | CPF9 |
- |
| Lake Rosseau/Cameron Bay Seaplane Base | Seaplane Base | - | CPQ6 |
Rosseau |
| Lake Rosseau/John's Bay Seaplane Base | Seaplane Base | - | CLR2 |
Lake Rosseau |
| Lake Rosseau/Windermere Seaplane Base | Seaplane Base | - | CNP2 |
Windermere |
| Lake Scugog/Ball Point (Smith) Seaplane Base | Seaplane Base | - | CBP7 |
Ball Point |
| Lakeview Farm (Ottawa Gliding Club) Field | Closed Airport | - | CA-1202 |
Ottawa |
| Lancaster Airpark | Small Airport | - | CLA6 |
Bainsville |
| Lansdowne House Airport | Small Airport Scheduled | YLH | CYLH |
Lansdowne House |
| Laurel / Whittington Aerodrome | Small Airport | - | CLW3 |
Laurel |
| Lavant Private Field | Small Airport | - | CA-1223 |
- |
| Leamington Airport | Small Airport | - | CLM2 |
Leamington |
| Leaside Aerodrome | Closed Airport | - | CA-0486 |
Toronto |
| Lefroy Airport | Closed Airport | - | CA-1087 |
Lefroy |
| Listowel Airport | Small Airport | - | CPN5 |
Listowel |
| Little Current (Manitoulin Health Centre) Heliport | Heliport | - | CNT4 |
Little Current |
| Little Current Seaplane Base | Seaplane Base | - | CNZ9 |
- |
| Little's Farm | Small Airport | - | CA-0442 |
- |
| London Airport | Medium Airport Scheduled | YXU | CYXU |
London |
| London (Pioneer Airpark) | Small Airport | - | CPN8 |
London |
| London (University Hospital) Heliport | Heliport | - | CPR4 |
London |
| London (Victoria Hospital) Heliport | Heliport | - | CPW2 |
London |
| Long Branch Aerodrome | Closed Airport | - | CA-0487 |
Mississauga |
| Long Lake (Wavy) Water Aerodrome | Seaplane Base | - | CLL6 |
Sudbury |
| Long Sault Airstrip | Small Airport | - | CA-0514 |
Long Sault |
| Lorneville Airstrip | Small Airport | - | CA-0520 |
Kawartha Lakes |
| Lubitz Field | Small Airport | - | CLB2 |
Bright |
| Lucan Airport | Small Airport | - | CPS4 |
Lucan |
| Lucknow Airpark | Closed Airport | - | CA-1068 |
Lucknow |
| Lumsden Air Park | Small Airport | - | CNL7 |
Nobel |
| MacTier/Francis Island Seaplane Base | Seaplane Base | - | CPZ7 |
- |
| Madawaska Valley Airpark | Small Airport | - | CNZ4 |
Barry's Bay |
| Manitoulin East Municipal Airport | Medium Airport | YEM | CYEM |
Sheguiandah |
| Manitouwadge Airport | Medium Airport | YMG | CYMG |
Manitouwadge |
| Manitouwadge (General Hospital) Heliport | Heliport | - | CPU4 |
Manitouwadge |
| Manitowaning Seaplane Base | Seaplane Base | - | CPJ9 |
- |
| Mansfield Airport | Small Airport | - | CPV4 |
Mansfield |
| Maple Airport | Closed Airport | - | CA-0010 |
Vaughan |
| Marathon Airport | Medium Airport | YSP | CYSP |
Marathon |
| Marathon (Wilson Memorial Hospital) Heliport | Heliport | - | CPX2 |
Marathon |
| Markdale (Centre Grey General Hospital) Heliport | Heliport | - | CPD9 |
Markdale |
| Markham Stouffville Heliport | Heliport | - | CPH7 |
Toronto |
| Martin Lake Water Aerodrome. | Seaplane Base | - | CMA7 |
Orrville |
| Martin's Landing | Small Airport | - | CML5 |
Thunder Bay |
| Matawatchan Aerodrome | Small Airport | - | CMW3 |
Matawatchan |
| Mattawa Airport | Small Airport | - | CMA2 |
Mattawa |
| Mattawa Seaplane Base | Seaplane Base | - | CPT7 |
- |
| Maxville Airport | Small Airport | - | CA-0015 |
Maxville |
| Maxville (Bourdon Farm) Airport | Small Airport | - | CMB7 |
Maxville |
| McDonalds Corners Airstrip | Closed Airport | - | CA-1222 |
- |
| McIntosh Lake Water Aerodrome | Closed Airport | - | CA-0676 |
Algonquin Provincial Park |