- Iroquois Falls AirportIdent: CNE4Serves: Iroquois Falls
- Ituna AirportIdent: CJM2Serves: Ituna
- Ivujivik AirportIdent: CYIKServes: Ivujivik
- Jan Lake AirportIdent: CKM4Serves: Jan Lake
- Janvier AirportIdent: CEP5Serves: Janvier
- Jaques Farms AirportIdent: CJF4Serves: Buffalo
- Jasper AirportIdent: CYJAServes: Jasper
- Jasper-Hinton AirportIdent: CEC4Serves: Hinton
- Jean Lake AirportIdent: CFF3Serves: Jean Lake
- Jean Marie River AirportIdent: CET9Serves: Jean Marie River
- John D'Or Prairie AirportIdent: CFG5Serves: John D'Or Prairie
- Johnson Lake AirportIdent: CFL9Serves: Johnson Lake
- Joliette AirportIdent: CSG3Serves: Joliette
- Juergensen FieldIdent: CPG7Serves: Centre Wellington
- Juniper AirportIdent: CCE3Serves: Juniper
- Kakabeka Falls AirportIdent: CKG8Serves: Kakabeka Falls
- Kamsack AirportIdent: CJN2Serves: Kamsack
- Kanawata Aeroparc AirportIdent: CSJ2Serves: Rivière-Windigo
- Kangiqsualujjuaq (Georges River) AirportIdent: CYLUServes: Kangiqsualujjuaq
- Kangiqsujuaq (Wakeham Bay) AirportIdent: CYKGServes: Kangiqsujuaq
- Kangirsuk AirportIdent: CYASServes: Kangirsuk
- Kars / Rideau Valley Air ParkIdent: CPL3Serves: Kars
- Kasba Lake AirportIdent: CJL8Serves: Kasba Lake
- Kashechewan AirportIdent: CZKEServes: Kashechewan
- Kaslo AirportIdent: CBR2Serves: Kaslo
- Kawartha Lakes Municipal AirportIdent: CNF4Serves: Lindsay
- Keewaywin AirportIdent: CPV8Serves: Keewaywin
- Kelvington AirportIdent: CKV2Serves: Kelvington
- Kerrobert AirportIdent: CJP2Serves: Kerrobert
- Killam-Sedgewick AirportIdent: CEK6Serves: Killam
- Killarney AirportIdent: CPT2Serves: Killarney
- Killarney Municipal AirportIdent: CJS5Serves: Killarney
- Kingfisher Lake AirportIdent: CNM5Serves: Kingfisher Lake
- Kingston / Riverland AirfieldIdent: CRL9Serves: Kingston
- Kipling AirportIdent: CKD5Serves: Kipling
- Kirby Lake AirportIdent: CRL4Serves: Kirby Lake
- Kitimat AirportIdent: CBW2Serves: Kitimat
- Kleena Kleene (Chilanko Lodge) AirportIdent: CA-0784Serves: Kleena Kleene
- Knee Lake AirportIdent: CJT3Serves: Knee Lake
- Knutsford AirfieldIdent: CA-0069Serves: Kamloops
- Kugaaruk AirportIdent: CYBBServes: Kugaaruk
- Kugluktuk AirportIdent: CYCOServes: Kugluktuk
- Kyle AirportIdent: CJB8Serves: Kyle
- Kégashka AirportIdent: CTK6Serves: Côte-Nord-du-Golfe-du-Saint-Laurent
- La Crete AirportIdent: CFN5Serves: La Crete
- La Grande-3 AirportIdent: CYADServes: La Grande-3
- La Loche AirportIdent: CJL4Serves: La Loche
- La Romaine AirportIdent: CTT5Serves: Le Golfe-du-Saint-Laurent
- La Sarre AirportIdent: CSR8Serves: La Sarre
- La Tuque AirportIdent: CYLQServes: La Tuque
- Lac Agile (Mascouche) AirportIdent: CSA2Serves: Lac Agile
- Lac Brochet AirportIdent: CZWHServes: Lac Brochet
- Lac du Bonnet AirportIdent: CYAXServes: Lac du Bonnet
- Lac La Biche AirportIdent: CYLBServes: Lac La Biche
- Lac-à-la-Tortue AirportIdent: CSL3Serves: Lac-à-la-Tortue
- Lachute AirportIdent: CSE4Serves: Lachute
- Lacombe AirportIdent: CEG3Serves: Lacombe
- Lampman AirportIdent: CJQ2Serves: Lampman
- Lampman/Spitfire Air AirportIdent: CA-0610Serves: Lampman
- Lancaster AirparkIdent: CLA6Serves: Bainsville