Two US investment firms are racing to close one of European aviation’s most watched deals. With Castlelake facing a firm-offer-or-walk-away deadline of 5pm this Sunday, 3 August, and Apollo following four days later on 7 August, the outcome of a two-month takeover battle will be determined within days. But the question of who wins the bid may matter less than what either winner plans to do with the prize.
This is a story that started as opportunism, became a bidding war, and has ended up as something considerably more significant: a stress test of whether European aviation’s ownership rules are fit for purpose in an era of globalised capital, and a defining moment for the future of the low-cost model on this continent.
How we got here
When Castlelake first disclosed it was “in the early stages of considering a possible offer” for easyJet on 29 May, the airline’s market capitalisation had fallen by roughly 40% over the preceding twelve months to approximately £3 billion. The Iran conflict had sent jet fuel prices sharply higher, forward bookings were softening, and easyJet had reported a pre-tax loss of £552 million for the first half of its financial year. The share price, which had touched 820p in 2021, was trading at 394p.
easyJet’s board called the approach “highly opportunistic.” They were right on the timing but the subsequent five bids, a rival entry from one of the world’s largest alternative asset managers, and a final agreed price of 715p per share suggest the airline had indeed been significantly undervalued. The bids represent an 81% premium to the 28 May closing price, and the share price has risen more than 80% since Castlelake’s interest first became public.
What followed was a textbook escalation under UK Takeover Code rules. Castlelake’s first three offers, at 560p, 600p and 625p, were all unanimously rejected. On 25 June, after the fourth rejection at 650p, easyJet took the pivotal step of opening limited commercial data to Castlelake, a signal, in standard City practice, that the board was prepared to deal at the right price. A fifth bid at 690p followed on 4 July, and on 5 July the board announced it was minded to recommend. The deal appeared settled.
Then, on 8 July, Apollo arrived.
Apollo’s £7.15 per share proposal, submitted without prior public disclosure and accepted by the board in principle within 48 hours, turned a closed negotiation into an open auction. As one analyst put it drily, by naming a price it would accept, the board handed any rival with a chequebook a floor to step over. Apollo simply stepped over it.
On price alone, Apollo leads by 25p per share, lifting the total equity value from £5.23 billion to £5.7 billion. But for easyJet’s board, shareholders, and employees, the more important differences are structural.
The break-up question
Castlelake’s background is in aviation finance and aircraft leasing. Analysts, including Bernstein, warned that realising value at the level Castlelake was paying would require heroic cost restructuring, and its track record, buying into distressed carriers and subsequently selling stakes, as it did with SAS, fuelled credible concern about an asset-driven outcome. Fleet disposal, sale-and-leaseback arrangements, and the separation of the Holidays business were all discussed as scenarios.
Apollo’s stated position is different. It has pledged to back easyJet’s existing strategy, including up-gauging the fleet with A321XLRs, scaling the Holidays business, and enhancing the ancillary and loyalty offering, and has specifically committed to keeping the business whole.
Apollo has also previously invested in Aeromexico, Atlas Air and Virgin Atlantic, and through its Perseus Aviation platform operates aircraft leasing, financing and asset management, with funds linked to Apollo having participated in an agreement to acquire Air Lease Corporation, one of the world’s largest commercial aircraft lessors. That combination of strategic intent and aviation finance infrastructure is seen as giving Apollo a more credible operational case.
Whether Apollo’s public commitments survive contact with the realities of private ownership is a different question, and one that shareholders should weigh carefully.
The brand and Stelios
easyJet does not own its own name. It licenses the “easy” brand from easyGroup, the vehicle of founder Sir Stelios Haji-Ioannou, whose family holds roughly 15% of the airline and collects a 0.25% royalty on its revenue. Stelios departed the board in 2010 following a prolonged strategic dispute and has declined to comment publicly on the bids. But his position is pivotal: no deal that requires shareholder approval can proceed comfortably without his acquiescence.
Apollo has explicitly committed to keeping the brand licence agreement with easyGroup in place without changes, a pledge clearly designed to secure Stelios’s support, or at least neutralise his opposition. Castlelake made no equivalent commitment.
The stub equity alternative
Both bids include a partial equity alternative allowing shareholders to roll their existing stakes into the private vehicle rather than taking cash. For Stelios specifically, this matters: accepting cash would crystallise a taxable event, while rolling equity allows him to participate in any future upside without triggering an immediate disposal. Apollo’s offer to preserve the brand royalty alongside the rollover option addresses the two things Stelios cares most about.
The regulatory question nobody has fully answered
The biggest unresolved issue hanging over both bids is not price it is legality.
EU aviation rules are clear: any airline operating within the bloc must be majority owned and effectively controlled by EU nationals to retain its operating licences and traffic rights. Both Apollo and Castlelake are American-led entities, with Castlelake ultimately controlled by Canada’s Brookfield Asset Management.
Castlelake’s solution was to partner with Irish nationals Peter Bellew and Mark Breen in a structure where EU investors would hold 51% of the acquisition vehicle. easyJet’s board criticised this as “opaque.”
Bellew’s credentials are impeccable, he served as easyJet’s own COO between 2020 and 2023, having previously held senior roles at Ryanair, Malaysia Airlines and Riyadh Air, but the board’s concern was about the ownership structure’s clarity and durability, not about Bellew personally.
Apollo, having arrived later, has been less specific. It has said it will take “all necessary steps” to win merger clearance and any approvals relating to the EU’s Foreign Subsidies Regulation, but has not disclosed the precise ownership architecture it proposes.
Concern over these regulatory hurdles helps explain why easyJet’s shares have consistently traded below the respective offer prices, the market is pricing in meaningful deal risk, even with board support.
This is the question that will define the viability of the deal more than any bidding increment. A US firm buying a UK airline that operates extensively across EU airspace post-Brexit, in a structure that must satisfy both UK merger rules and EU ownership regulations, is navigating genuinely complex territory.
The Foreign Subsidies Regulation, a relatively new EU instrument designed to prevent non-EU state subsidies distorting the single market, adds a further layer of scrutiny that neither bidder has fully addressed publicly.
What easyJet’s fleet and order book mean for either owner
Whatever the ownership outcome, the strategic asset at the heart of this transaction is the fleet. easyJet operates 356 aircraft, including 97 A320neo-family aircraft, 180 A320s and 79 A319s, of which 208 are owned outright. The airline is accelerating retirement of its A319s by 2029, with 17 aircraft deliveries planned in the remainder of FY26, followed by 30 in 2027 and 43 in 2028.
That order book is simultaneously an asset and a liability. For a financial buyer focused on near-term returns, the commitment to take delivery of 90 new aircraft within three years is a significant cash obligation. For a strategic buyer prepared to invest in the long-term, the same order book represents a competitive moat, narrowing the gauge gap with Ryanair’s 737 MAX fleet, improving seat-mile economics, and reducing the fuel burn per passenger that has become existential in an environment of structurally higher jet fuel prices.
Alton Aviation Consultancy director Augusto Viansson Ponte told Reuters: “You can jump in and get a turnkey operation playing in a world where it’s going to be very, very difficult for others to come in and play at the same level.”
That observation cuts to the heart of why both firms want easyJet: it is not just an airline, it is a network, a slot portfolio, a digital holidays engine and a fleet order book that a new entrant could not replicate.
What the broader industry should read into this
The easyJet saga did not begin in a vacuum. It is happening alongside a wider consolidation wave across European short-haul aviation: Air France-KLM and Lufthansa competing for TAP Air Portugal, Ryanair continuing its steady capacity expansion, and Wizz Air managing through its own operational challenges. The middle ground, where easyJet has always operated, caught between the ultra-low-cost model and the legacy carriers, is under sustained structural pressure.
A successful privatisation of easyJet, under either bidder, would remove from public markets an airline that has been a useful barometer of European short-haul demand, fuel exposure and consumer travel confidence. It would also, as Bernstein analysts noted in relation to the Castlelake bid, potentially reduce seat capacity in intra-European aviation if the new owner proves less committed to growth than the public company has been and that supply tightening, if it materialises, would benefit Ryanair, Wizz Air and Jet2 directly.
“While shareholders will cheer a bidding war that increases the windfall, the risk of piling on debt into the business as part of the process runs the risk of underperformance in the future,” said Chris Beauchamp, chief market analyst at IG. That concern, leverage, debt service, and the pressure private ownership places on capacity and network decisions, is one that lessors, MRO providers, airports and suppliers with commercial exposure to easyJet should be tracking closely.
The three scenarios for the next ten days
Scenario one: Apollo firms up, Castlelake walks away. The most likely outcome on current information. Castlelake’s deadline is Sunday. Without board support and with due diligence still outstanding, tabling a firm offer above 715p without access to easyJet’s full books would be a significant risk. If Castlelake walks away on 3 August, Apollo becomes the sole bidder and the focus shifts to the detail of its firm offer, specifically the ownership structure, the financing package, and the regulatory commitments, which must be announced by 7 August.
Scenario two: Castlelake returns above 715p. Having raised its bid five times from 560p to 690p, Castlelake has demonstrated it has the financial capacity to go higher. If it genuinely believes easyJet is worth more than 715p, and if the commercial information it accessed in late June supports that view, a sixth bid above Apollo’s price is possible. That would reopen the contest, force Apollo to either match or walk away, and potentially push the final price above 730p or 740p. For shareholders, that is the best outcome. For easyJet’s long-term health, adding further leverage to fund a bidding war is a less comfortable prospect.
Scenario three: neither firm tables a firm offer. The least likely, but not inconceivable. If due diligence reveals material concerns, if regulatory advice is unfavourable, or if financing markets move against either bidder, both could walk away. Under Takeover Code rules, both would then be locked out from making a new approach for six months. easyJet’s shares would fall sharply, back towards the pre-bid range. The board, having revealed its willingness to deal at 690p, would face difficult questions from shareholders.
Conclusion
Whatever happens in the next ten days, the easyJet takeover saga has already told us something important about the low-cost sector: its assets are scarcer and more valuable than depressed public market valuations suggested, and there is deep institutional appetite from some of the world’s largest alternative asset managers to own them. The Iran conflict created the window. Castlelake opened it. Apollo walked through.
Key dates
- 3 August 2026, 5pm: Castlelake put-up-or-shut-up deadline
- 7 August 2026, 5pm: Apollo put-up-or-shut-up deadline
