This is a list of airlines that are based in Ontario which have an air operator's certificate issued by Transport Canada, the country's civil aviation authority.
| Airline | Image | IATA | ICAO | Callsign | Hub airport(s) or headquarters | Notes |
|---|---|---|---|---|---|---|
| 30000 Island Air |  | Parry Sound Harbour | 2000? - ?, charter rental and leasing service air operator based in Parry Sound, Ontario using de Havilland Canada DHC-2 Beaver | |||
| Air Ontario |  | GX | ONT | ONTARIO | London | 1987 - 2001, to Air Canada Jazz |
| Air Toronto | CS | CNE | CONNECTOR | Toronto Pearson | 1984-19991 | |
| AllCanada Express |  | CNX | CANEX | Toronto Pearson | 1992 - 2005 | |
| Austin Airways |  | AAW | Timmins/Victor M. Power | 1934 - 1987, to Air Ontario | ||
| Canada 3000 |  | 2T | CMM | ELITE | Toronto Pearson | 1988 - 2001, formerly Canada 2000; Canada 3000 Cargo sold to Cargojet and 2005 revival failed |
| City Express |  | Peterborough | 1971 - 1991, founded as Air Atonabee 1971 | |||
| Great Lakes Airlines | Sarnia Chris Hadfield | 1958 - 1983, to Air Ontario | ||||
| Intair |  | ND | INT | INTAIR | Toronto Pearson | 1989 - 1991, established by City Express as a successor to Skycraft Air Transport |
| Millardair |  | Toronto Pearson | 1962 - 1990, continued as aircraft maintenance and servicing firm Millard Air Incorporated (Millardair MRO) 1990-2012 | |||
| NAC Air | HMR | HAMMER | Thunder Bay | 2000 - 2008, North American Charters was 100% First Nations owned | ||
| NorOntair |  | NOA | NORONTAIR | Sault Ste. Marie | 1971 - 1996, airline operations of Ontario Northland Transportation Commission | |
| Odyssey International |  | OL | ODY | ODYSSEY | Toronto Pearson | 1988 - 1990, name, aircraft and some employees were merged with Nationair, and operated as a separate division of Nolisair for a short period of time |
| Ontario Central Airlines | NUN | NUNASI | Kenora | 1947 - 1991?, became Nunasi-Central Airlines in 1984 and then to Nunasi-Northland Airlines in 1987 | ||
| Ontario Express | 9X | OEL | PARTNER | 1980s - 1998, to Canadian Airlines | ||
| Pem-Air | PD | OEM | PEM-AIR | Pembroke | 1970 - 2002 | |
| Roots Air | 6J | SSV | SKYTOUR | Toronto Pearson | 2000 - 2001, part of Roots Canada, ceased operations when ownership acquired by Air Canada | |
| Skycraft Air Transport |  | Oshawa | 1977 - 1989, reincarnated in 1989 and operating until 1994. | |||
| Skyservice Airlines |  | 5G | SSV | SKYTOUR | Toronto Pearson | 1986 - 2010, differs from existing Skyservice Business Aviation - same owners |
| Soundair | SDR | SOUNDAIR | Toronto Pearson | 1973-1990, owned Odyssey International and Air Toronto. Previously Owen Sound Air Services. DBA Soundair Express. | ||
| Starratt Airways | Hudson, Kenora District | 1932 - 1942, to Canadian Pacific Airlines | ||||
| Vacationair |  | Toronto | 1988 - 1990, initiated by Gray Coach Lines | |||
| Vision Airways Corporation | V6 | VSN | VISION | Timmins/Victor M. Power | ? - 1994 | |
| Vistajet | VJT | VISTA | Ottawa, Toronto, Windsor | 1997 - 1997 | ||
| Zoom Airlines |  | Z4 | OOM | ZOOM | Ottawa Macdonald–Cartier | 2002 - 2008, named acquired for new XPO Airlines 2009 |
An airline alliance is an aviation industry arrangement between two or more airlines agreeing to cooperate on a substantial level. Alliances may provide marketing branding to facilitate travelers making inter-airline codeshare connections within countries. This branding may involve unified aircraft liveries of member aircraft.
Air Canada is the flag carrier and the largest airline of Canada, by size and passengers carried. Air Canada is headquartered in the borough of Saint-Laurent, Montreal, Quebec. The airline, founded in 1937, provides scheduled and charter air transport for passengers and cargo to 222 destinations worldwide. It is a founding member of the Star Alliance. Air Canada's major hubs are at Toronto Pearson International Airport (YYZ), Montréal–Trudeau International Airport (YUL), and Vancouver International Airport (YVR).
SkyTeam is one of the world's three major airline alliances. Founded in June 2000, SkyTeam was the last of the three alliances to be formed, the first two being Star Alliance and Oneworld, respectively. Its annual passenger count is 630 million (2019), the second largest of the three major alliances. As of January 2019, SkyTeam consists of 19 carriers from five continents and operates with the slogan "Caring more about you". It also operates a cargo alliance named SkyTeam Cargo, which partners ten carriers, all of them SkyTeam members. Its centralised management team, SkyTeam Central, is based at the World Trade Center Schiphol Airport on the grounds of Amsterdam Airport Schiphol in Haarlemmermeer, Netherlands.
The Regional Aerodrome Bern-Belp, marketed as Bern Airport, officially referred to as Regionalflugplatz Bern-Belp in German, is a regional aerodrome serving Bern, the capital of Switzerland. The aerodrome is located within the town limits of Belp, and used to feature scheduled flights to some European metropolitan and several leisure destinations. It handled 183,319 passengers in 2016, a decrease of 3.5 percent over 2015.
Sudan Airways is the national airline of Sudan, headquartered in Khartoum. Since 2012, the company has been fully owned by the Government of Sudan.
ABX Air, Inc., formerly Airborne Express, is a cargo airline headquartered at Wilmington Air Park near the City of Wilmington, Ohio, USA. ABX Air operates scheduled, ad hoc charter and ACMI freight services. It also provides flight support services and training. ABX Air is owned by Air Transport Services Group.
Air Macau Company Limited is the flag carrier of Macau. It operates services to 24 destinations in Mainland China, Indonesia, Japan, Singapore, South Korea, Taiwan, Thailand and Vietnam, from the airline's home base at Macau International Airport. In 2014, Air Macau carried 2.12 million passengers with an average load factor of 68.20% and carried 15,900 tonnes of cargo and mail.
Okay Airways is an airline headquartered in Daxing District, Beijing, People's Republic of China. It operates passenger flight services and dedicated cargo services. Its main hubs are Tianjin Binhai International Airport and Xi'an Xianyang International Airport, with a secondary hub is Changsha Huanghua International Airport.
Ottawa/Macdonald–Cartier International Airport is the main international airport serving Ottawa, Ontario, Canada, and its metropolitan area as well as Gatineau, Quebec known as the National Capital Region. It is named after the Canadian statesmen and two of the "founding fathers of Canada", Sir John A. Macdonald and Sir George-Étienne Cartier. Located 5.5 nautical miles south of downtown Ottawa in the south end of the city, it is Canada's eighth-busiest airport, Ontario's second-busiest airport by airline passenger traffic, with 2,992,334 passengers in 2022. The airport is a home base for Canadian North.
Buffalo Airways is a family-run airline based in Yellowknife, Northwest Territories, Canada, established in 1970. Buffalo Airways was launched by Bob Gauchie and later sold to one of his pilots, Joe McBryan. It operates charter passenger, charter cargo, firefighting, and fuel services, and formerly operated scheduled passenger service. Its main base is at Yellowknife Airport (CYZF). It has two other bases at Hay River/Merlyn Carter Airport (CYHY) and Red Deer Regional Airport (CYQF). The Red Deer base is the main storage and maintenance facility. The airline is also the subject of the History television reality series Ice Pilots NWT.
Heraklion International Airport "Nikos Kazantzakis" is the primary airport on the island of Crete, Greece, and the country's second busiest airport after Athens International Airport. It is located about 5 kilometres (3.1 mi) east of the main city centre of Heraklion, near the municipality of Nea Alikarnassos. It is a shared civil/military facility. The airport is named after Heraklion native Nikos Kazantzakis, a Greek writer and philosopher. Nikos Kazantzakis Airport is Crete's main and busiest airport, serving Heraklion (Ηράκλειο), Aghios Nikolaos, Malia (Mάλλια), Hersonissos (Χερσόνησος), Stalida (Σταλίδα), Elounda (Ελούντα) and other resorts.
Aviation in Singapore is a key component of the Singaporean economy. Besides currently the sixth busiest airport and the fourth busiest air cargo hub in Asia, the Singaporean aviation industry is also a significant aerospace maintenance, repair and overhaul centre.
Prince Edward Air Ltd. was an airline headquartered in Charlottetown, Prince Edward Island, Canada. The airline offered a variety of services including: scheduled cargo, ad-hoc charter, air medevac, maintenance, sales and service.
Southern Airways Express is a commuter airline operating across the United States with headquarters in Palm Beach, Florida. Southern Airways acts as a local service airline for dozens of cities across all U.S. time zones. Approximately one third of its routes are subsidized through the Essential Air Service program by the United States Department of Transportation.
Delta Connection is a regional airline brand name for Delta Air Lines, under which a number of individually owned regional airlines primarily operate short- and medium-haul routes. Mainline major air carriers often use regional airlines to operate services via code sharing agreements in order to increase frequencies in addition to serving routes that would not sustain larger aircraft as well as for other competitive or operational reasons.
