
402 "City of Winnipeg" Squadron is a Royal Canadian Air Force squadron based in Winnipeg, Manitoba, Canada

400 "City of Toronto" Tactical Helicopter and Training Squadron is part of 1 Wing, and as such a lodger unit of Canadian Forces Base Borden. The squadron operates the CH-146 Griffon.

No. 401 Tactical Fighter Squadron, a.k.a. "City of Westmount" Squadron, is a Royal Canadian Air Force squadron based at CFB Cold Lake. During World War II it was a fighter squadron and is notable for having fought in the Battle of Britain. Postwar, the squadron operated in Canada as an auxiliary squadron, reserve squadron and a helicopter and training squadron. In 2015 it was reactivated as a Tactical Fighter Squadron.

403 "City of Calgary" (Helicopter) Operational Training Squadron is a squadron of the Royal Canadian Air Force (RCAF) located at Canadian Forces Base Gagetown. It is equipped with CH-146 Griffons and provides operational aircrew training to the crews who will fly the helicopter. The squadron also conducts operational test and evaluation, develops aviation tactics and carries out operations in support of the 1 Wing mission. It also supports the local Army requirements of the Combat Training Centre. It was founded as No. 403 Squadron RCAF.

404 Maritime Patrol and Training Squadron is a long range patrol and training squadron in the Royal Canadian Air Force. The squadron was originally No. 404 Squadron of the Royal Canadian Air Force (RCAF).

405 Long Range Patrol Squadron is a unit of the Royal Canadian Air Force (RCAF) within the Canadian Forces, initially formed as No. 405 Squadron RCAF during the Second World War.

406 "City of Saskatoon" Maritime Operational Training Squadron is a Royal Canadian Air Force (RCAF) unit of the Canadian Armed Forces. Based at 12 Wing Shearwater since 1972, it is responsible for crew training on the Sikorsky CH-148 Cyclone since summer of 2016. The squadron was formed during World War II as part of RAF Fighter Command.

407 Long Range Patrol Squadron is a long range and maritime patrol squadron of the Royal Canadian Air Force. It is located at 19 Wing Comox, on Vancouver Island, British Columbia, and operates the CP-140 Aurora.

408 Tactical Helicopter Squadron is a unit of 1 Wing, Kingston. It is co-located with 1 Canadian Mechanized Brigade Group at Canadian Forces Base (CFB) Edmonton.

409 Tactical Fighter Squadron is a unit of the Royal Canadian Air Force. The squadron operates the CF-18 Hornet from CFB Cold Lake in Alberta, Canada.

410 Tactical Fighter Operational Training Squadron, nicknamed the "Cougars", is a Royal Canadian Air Force aircraft squadron currently located at Canada's primary training base for the CF-18, at Cold Lake, Alberta. The squadron was formed during the Second World War as an RCAF squadron under the Royal Air Force (RAF), at RAF Ayr, near Prestwick, in Scotland.

No. 411 "City of York" Squadron RCAF was a Second World War Royal Canadian Air Force squadron that operated as part of RAF Fighter Command in Europe with the Supermarine Spitfire.

No. 412 Transport Squadron is one of three Royal Canadian Air Force (RCAF) transport squadrons attached to Ottawa, Ontario. The squadron operates with a strength of about 29 out of the Pilot Officer John Gillespie Magee, Jr. Annex. The Annex officially opened on January 11, 1995.

413 Transport and Rescue Squadron is an air force squadron of the Canadian Armed Forces. It was originally a flying boat squadron of the Royal Canadian Air Force during the Second World War. It currently operates the C-130 Hercules and the CH-149 Cormorant in transport plus search and rescue roles at CFB Greenwood.

No. 414 Squadron RCAF is a Royal Canadian Air Force squadron. It is currently located in Ottawa and conducts electronic warfare support training for other units in the Canadian Armed Forces.

415 Long Range Patrol Force Development Squadron is an air squadron of the Royal Canadian Air Force that first saw service during the Second World War.

416 "City of Oshawa" Tactical Fighter Squadron was a unit of the Canadian Forces and the Royal Canadian Air Force. The squadron operated the CF-18 Hornet fighter jet from CFB Cold Lake in Alberta, Canada. In 2006, 416 TFS stood down and was amalgamated with 441 Tactical Fighter Squadron to form 409 Tactical Fighter Squadron.
417 Combat Support Squadron is an Air Force unit with the Canadian Forces. Based at CFB Cold Lake it provides helicopter support to the base operations. Since 1994, it has also provided search and rescue.

No. 418 "City of Edmonton" Search And Rescue Squadron RCAF is a unit of the Royal Canadian Air Force, formed during World War II.

419 Tactical Fighter Training Squadron is a unit of the Royal Canadian Air Force. The squadron was originally formed during the Second World War and is currently based at CFB Cold Lake. It is responsible for advanced tactical fighter training for pilots of the RCAF and as part of the NATO Flying Training in Canada (NFTC) program using nine CT-155 Hawk trainers.

No. 421 Squadron RCAF was a unit of the Royal Canadian Air Force. It was the last RCAF fighter squadron to be formed in the UK during World War II.

No. 422 Squadron RCAF was a unit of the Royal Canadian Air Force, formed during World War II.

423 Maritime Helicopter Squadron is a unit of the Canadian Forces under Royal Canadian Air Force. It currently operates the Sikorsky CH-148 Cyclone from CFB Shearwater in Nova Scotia, Canada.

424 Transport and Rescue Squadron, nicknamed "Tiger Squadron", is a Royal Canadian Air Force strategic transport and search and rescue unit based at Canadian Forces Base (CFB) Trenton in the Canadian province of Ontario. The squadron is the primary provider of search and rescue response for the Trenton Search and Rescue Region, which extends from Quebec City to the Rocky Mountains, and from the Canada–United States border to the North Pole, covering an area of over ten million square kilometres in Central, Western, and Northern Canada.

425 Tactical Fighter Squadron (French: 425e Escadron d'appui tactique, also "Alouette" Squadron, is a unit of the Royal Canadian Air Force. It operates CF-18 Hornet fighter jets from CFB Bagotville in Quebec, Canada. The squadron was originally formed during the Second World War.

427 Special Operations Aviation Squadron is a tactical helicopter unit that provides aviation support to Canadian Special Operations Forces Command. The squadron is based at CFB Petawawa, Ontario with a fleet of Bell CH-146 Griffon helicopters. It was founded during the Second World War as No. 427 Squadron RCAF.

No. 428 Squadron RCAF, also known as 428 Bomber Squadron, and 428 Ghost Squadron, was first a night bomber squadron in the Royal Canadian Air Force engaged in strategic bombing during World War II, as based in Yorkshire. At the end of the war the squadron moved to Nova Scotia before being disbanded in September 1945. In 1954 the squadron was reformed as 428 All-Weather (Fighter) Squadron, before being again disbanded in 1961.

429 Transport Squadron of the Royal Canadian Air Force is one of four squadrons attached to CFB Trenton in Trenton, Ontario. The squadron was originally formed as a bomber squadron of the Royal Canadian Air Force (RCAF) attached to RAF Bomber Command during the Second World War.

430 Tactical Helicopter Squadron is a unit of the Canadian Forces under the Royal Canadian Air Force. It operates Bell CH-146 Griffons from CFB Valcartier, near Quebec City in Quebec, Canada.

The Snowbirds, officially known as 431 Air Demonstration Squadron, are the military aerobatics or air show flight demonstration team of the Royal Canadian Air Force. The team is based at 15 Wing Moose Jaw near Moose Jaw, Saskatchewan. The Snowbirds' official purpose is to "demonstrate the skill, professionalism, and teamwork of Canadian Forces personnel". The Snowbirds are the first Canadian air demonstration team to be designated as a squadron.

No. 432 Squadron RCAF was a squadron of the Royal Canadian Air Force formed during the Second World War.

433 Squadron is a unit of the Royal Canadian Air Force. It operates CF-18 Hornet fighter jets from CFB Bagotville in Quebec, Canada.

No. 434 Squadron is a Royal Canadian Air Force bomber squadron that flew bombing operations over Europe during World War II and was later a post-war fighter and combat support unit. It was disbanded in 2000. The squadron was reactivated in May 2018 as 434 Operational Test and Evaluation.

435 Transport and Rescue Squadron, nicknamed "Chinthe Squadron", is a Royal Canadian Air Force strategic transport, aerial refueling and search and rescue unit based at Canadian Forces Base (CFB) Winnipeg in the province of Manitoba, Canada. The squadron flies four Lockheed CC-130H Hercules aircraft. In addition to being the only provider of tactical fighter air-to-air refueling in Canada, the squadron is a provider of primary search and rescue response for the largest search and rescue region in Canada, controlled from CFB Trenton. The squadron keeps an aircraft on constant readiness to deploy, with airborne Search and Rescue Technicians standing by to respond within 30 minutes of notification during weekdays and 2 hours at other times. The Trenton Search and Rescue Region, also covered by the 424 Transport and Rescue Squadron, extends from Quebec City to the Rocky Mountains, and from the Canada–United States border to the North Pole, covering most of Central, Western, and Northern Canada.

436 Transport Squadron is a unit of the Royal Canadian Air Force. It currently operates the CC-130J Super Hercules from 8 Wing Trenton in Trenton, Ontario.

437 Transport Squadron is a unit of the Canadian Armed Forces under the Royal Canadian Air Force, based at CFB Trenton in Ontario. The unit operates the CC-150 Polaris, and is responsible for long range military and VIP transportation.

439 Combat Support Squadron is a squadron of the Royal Canadian Air Force, based in Bagotville, Quebec.

440 Transport Squadron is a unit of the Canadian Armed Forces under the Royal Canadian Air Force. It is part of 8 Wing and works closely with Joint Task Force (North) located in Yellowknife, Northwest Territories.

441 Tactical Fighter Squadron was a unit of the Canadian Forces. It was originally formed as a unit of the Royal Canadian Air Force (RCAF) during the Second World War. The squadron operated the McDonnell Douglas CF-18 Hornet fighter jet from CFB Cold Lake in Alberta, Canada. It was deactivated in 2006.

442 Transport and Rescue Squadron is a Royal Canadian Air Force tactical transport and search and rescue unit based at Canadian Forces Base (CFB) Comox in the Canadian province of British Columbia. The squadron flies six De Havilland Canada CC-115 Buffalo STOL aircraft and five AgustaWestland CH-149 Cormorant rescue helicopters. One of each is on constant readiness to deploy in response to distress calls in the Victoria Search and Rescue Region, which includes most of British Columbia and the territory of Yukon as well as 560,000 square kilometres in the Pacific Ocean, up to 600 nm offshore. The squadron also serves as the Operational Training Unit for the CH-149 Cormorant helicopter and the CC-115 Buffalo airplane.

443 "City of New Westminster" Maritime Helicopter Squadron is a Canadian Armed Forces helicopter squadron under Royal Canadian Air Force, located on Vancouver Island, British Columbia. It was originally a Second World War Royal Canadian Air Force squadron that operated as part of RAF Fighter Command in Europe with the Supermarine Spitfire.