
WestJet is owned by Onex Corporation, a Toronto-based private equity firm that acquired the airline in December 2019 for approximately CAD $5 billion. Onex holds a 75 percent controlling stake. In October 2025, Delta Air Lines purchased 12.7 percent, Korean Air 10 percent, and Air France-KLM 2.3 percent, giving foreign strategic partners a combined 25 percent minority stake. WestJet remains privately held and headquartered in Calgary, Alberta.
| Brand | Parent Company | Ownership Type |
|---|---|---|
| WestJet | Onex Corporation | Wholly owned |
WestJet was founded in 1996 by a group of five Canadian aviation entrepreneurs: Clive Beddoe, Tim Morgan, David Neeleman, Mark Hill, and Don Bell. The airline launched operations on February 29, 1996, with three Boeing 737-200 aircraft and approximately 200 employees serving six destinations in western Canada. The founders modeled WestJet on the low-cost carrier approach pioneered by Southwest Airlines in the United States, focusing on point-to-point service, a single aircraft type, and low operating costs.
The airline grew rapidly through the late 1990s and early 2000s, expanding from its western Canadian base into eastern Canada. By 2000, WestJet was flying to major cities across the country and had begun challenging Air Canada's dominance on domestic routes. The carrier went public in 1999, listing on the Toronto Stock Exchange under the ticker WJA. The IPO raised capital that funded fleet expansion and route development.
In 2003, WestJet began installing winglets on its Boeing 737-700 and 737-800 aircraft, becoming a North American pioneer in the technology. Winglets reduce fuel consumption by up to 2.7 percent per flight. The airline also adopted Required Navigation Performance (RNP) procedures, becoming the first Canadian airline to integrate the GPS-based precision approach technology into its flight operations.
WestJet launched WestJet Encore in 2014, a regional subsidiary operating Bombardier Q400 turboprop aircraft (later rebranded as De Havilland DHC-8-400). Encore expanded service to smaller Canadian communities that could not support mainline jet service, broadening WestJet's domestic network reach.
The airline took delivery of its first Boeing 787-9 Dreamliner in January 2019, marking its entry into long-haul international service. The 787-9 enabled WestJet to launch transatlantic routes to London, Paris, and Dublin from Calgary. The widebody fleet gave WestJet the range to compete with Air Canada on intercontinental routes for the first time.
The Boeing 737 MAX grounding in March 2019, following two fatal accidents worldwide, forced WestJet to halt operations with its 13 MAX 8 jets. The grounding complicated the Onex acquisition by reducing WestJet's valuation, and the purchase price was adjusted downward. WestJet returned the MAX to service in January 2021 after Transport Canada approved recertification.
Onex Corporation completed its acquisition of WestJet on December 11, 2019, taking the airline private. Under Onex ownership, WestJet underwent a strategic repositioning. In October 2022, CEO Alexis von Hoensbroech and Alberta Premier Jason Kenney announced a partnership designating Calgary International Airport as WestJet's sole global connecting hub. The airline committed to basing its entire Boeing 787 Dreamliner fleet in Calgary and planned to double capacity at the airport before the end of the decade.
WestJet launched Swoop, an ultra-low-cost carrier, in June 2018 to compete with Flair Airlines and other budget entrants. Swoop operated Boeing 737-800 aircraft on price-driven routes. On October 28, 2023, WestJet shut down Swoop and folded its operations into the mainline brand, citing the need to streamline operations amid fierce competition.
In March 2022, WestJet announced its intent to acquire Sunwing Airlines and Sunwing Vacations, a Canadian leisure carrier and tour operator. The federal government approved the takeover in March 2023 despite a Competition Bureau warning that the deal would likely result in higher prices and reduced service. WestJet completed the acquisition in May 2023 and announced it would wind down Sunwing Airlines as a separate carrier, integrating it into the mainline business within two years. Sunwing Vacations continues as a tour operator brand.
In September 2025, WestJet placed an order for 60 Boeing 737 MAX 10 aircraft and 7 additional 787-9 Dreamliners, the largest-ever Canadian order of Boeing airplanes. The order supports WestJet's fleet modernization and growth strategy, with the 737 MAX 10 offering lower per-seat costs and the 787-9 enabling new long-haul route opportunities from Calgary.
The October 2025 stake sale to Delta, Korean Air, and Air France-KLM marked a new phase in WestJet's evolution. The strategic investments position WestJet for deeper network integration with three major global carriers, potentially including future alliance membership.
What does Onex Corporation do?
Onex Corporation is a private equity and asset management firm that invests and manages capital on behalf of its shareholders and global institutional clients. The firm operates through Onex Partners for upper middle-market buyouts, ONCAP for smaller middle-market investments, and Onex Credit for private credit strategies. Onex has approximately $55.8 billion in assets under management and has completed over 50 platform acquisitions since inception.
Is Onex Corporation publicly traded?
Yes. Onex Corporation is listed on the Toronto Stock Exchange under the symbol ONEX. The company has been publicly traded since its 1999 IPO. Despite being publicly traded, Onex operates as a private equity firm, generating revenue primarily through management fees and carried interest from its investment funds.
Who founded Onex Corporation?
Onex Corporation was founded in 1984 by Gerald W. Schwartz, a Canadian businessman who previously worked at Bear Stearns in New York. Schwartz established Onex as one of Canada's first private equity firms and continues to serve as Founder and Non-Independent Chairman. Robert Le Blanc currently serves as CEO.
What companies does Onex own?
Onex's current portfolio includes WestJet (Canada's second-largest airline), Convex (specialty insurance), AirSprint (fractional jet ownership), and a significant minority stake in OneDigital (insurance brokerage and financial services), among other investments. The portfolio changes as Onex acquires new platform companies and exits existing investments through sales or public offerings.
How much did Onex pay for WestJet?
Onex Corporation acquired WestJet in December 2019 for approximately CAD $5 billion through its Onex Partners platform. The deal priced WestJet shares at $31 each, a 67 percent premium over the closing price before the offer. It was the largest private equity deal in aviation history at the time. In October 2025, Onex sold a 25 percent minority stake to Delta Air Lines, Korean Air, and Air France-KLM for approximately US $550 million, recouping its equity investment while retaining 75 percent control.
Did Onex try to buy Air Canada?
Yes. In 1999, Onex launched a hostile takeover bid for Air Canada, proposing to merge it with Canadian Airlines. A Quebec Superior Court ruled the bid illegal because Canadian law prohibited any single shareholder from controlling more than 10 percent of Air Canada. Onex withdrew its offer. Air Canada subsequently merged with Canadian Airlines without Onex's involvement. This experience gave Onex deep familiarity with Canadian aviation regulations, which proved valuable in the 2019 WestJet acquisition.
What is Onex's assets under management?
Onex Corporation has approximately $55.8 billion in assets under management as of 2026. Of this total, approximately $9.4 billion represents Onex's own investing capital. The Onex Partners platform alone manages approximately $17 billion. The firm's investors include public and private pension plans, sovereign wealth funds, insurance companies, family offices, and high-net-worth individuals globally.
WestJet has committed to reducing its environmental footprint through fleet modernization, operational efficiency, and sustainable aviation fuel. The airline's Boeing 737 MAX aircraft consume approximately 13 to 15 percent less fuel than the older 737-800 models they replace, reducing both CO2 emissions and operating costs. The 787-9 Dreamliner achieves similar efficiency gains on long-haul routes.
WestJet is a founding member of the Canadian Council for Sustainable Aviation Fuels (C-SAF), an industry-led initiative advancing the production and use of Canadian-made sustainable aviation fuel. In April 2024, WestJet acquired Shell Aviation's first SAF available for purchase in Canada. The airline supports the development of a domestic SAF supply chain to reduce reliance on imported fuel.
The airline has implemented drag reduction technology through a partnership with Aero Design Labs, testing modification kits designed to reduce fuel burn and improve aircraft efficiency. WestJet's fleet, with an average age under 10 years, is among the youngest of established North American carriers.
WestJet does not hold independently verified ESG certifications at the corporate level. Its sustainability disclosures are limited compared to publicly traded peers, since the airline is privately held and not subject to the same reporting requirements as companies listed on Canadian or US stock exchanges.
The following awards are verifiable through the organizations cited:
Sunwing Acquisition Scrutiny (2022 to 2023): The Competition Bureau of Canada warned that WestJet's acquisition of Sunwing Airlines and Sunwing Vacations would likely result in higher prices and decreased service, particularly for vacation packages. The federal government approved the deal in March 2023 with conditions, but consumer advocates raised concerns about reduced competition in the Canadian leisure travel market. WestJet subsequently announced it would wind down Sunwing Airlines as a separate carrier and integrate it into the mainline business.
Swoop Shutdown (2023): WestJet shut down its ultra-low-cost carrier Swoop on October 28, 2023, folding operations into the mainline brand. The move eliminated a dedicated budget option in the Canadian market and drew criticism from consumer advocates who argued it reduced price competition. WestJet countered that integrating Swoop would streamline operations and reduce complexity.
737 MAX Grounding (2019 to 2021): WestJet operated 13 Boeing 737 MAX 8 aircraft that were grounded worldwide in March 2019 following fatal crashes involving Lion Air and Ethiopian Airlines. The grounding disrupted WestJet's fleet planning and complicated the Onex acquisition. Transport Canada approved the aircraft's return to service in January 2021.
Labor Relations: WestJet has experienced periodic labor tensions. In 2022, the airline narrowly avoided a pilot strike when a last-minute agreement was reached with the Air Line Pilots Association. Labor negotiations remain an ongoing consideration as the airline integrates former Sunwing and Swoop employees into its operations.
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| Brand | Parent Company | Country | Founded | Market Position | Primary Market | Gender Target |
|---|---|---|---|---|---|---|
| Air Canada | Canada | 1937 | Premium | Canada | All-ages | |
| Porter Airlines | Canada | 2006 | Mid range | Regional | All Genders |
Transportation LogisticsOwned by Air Canada
Canada's flag carrier and largest airline, offering domestic, transborder, and international scheduled air service to more than 220 destinations worldwide.
Travel HospitalityOwned by Porter Aviation Holdings Inc.
Canadian regional airline operating Embraer E195-E2 jets and De Havilland Dash 8-400 turboprops across Eastern Canada, the US, and leisure destinations with complimentary service.
Market Positioning: WestJet competes with 2 brands in the same categories, ranging from mass market to luxury positioning.
Geographic Distribution: Competitors are headquartered across multiple regions, indicating global competition in this market segment.
Brand Heritage: Competitor brands range from established heritage brands to newer market entrants, with founding years spanning several decades.
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Porter Airlines operates independently without a large parent corporation.
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Kingfisher is owned by Kingfisher Airlines Limited, a public company, a different structure than WestJet's parent.
Travel HospitalityOwned by United Airlines Holdings, Inc.
Major US airline and world's largest by fleet size, serving 370-plus destinations across six continents from eight hubs. Founding member of Star Alliance.
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Travel HospitalityOwned by Booking Holdings
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