Athens Airport Reworks Its Growth Plan Into a €950 Million Phased Build as Traffic Keeps Climbing

AIA's board pointed to three forces reshaping the plan: passenger volumes that have grown faster than earlier projections, the practical complexity of building major new terminal capacity while keeping a live, high-traffic hub running, and geopolitical uncertainty that has made airlines' and financiers' longer-range planning harder to pin down. Rather than lock in a single, monolithic construction commitment against that uncertain backdrop, the board opted for a structure that lets the airport reassess and adjust scope between phases as conditions evolve.

That flexibility cuts both ways. It reduces the airport's exposure if traffic growth slows or construction costs spike further, but it also means passengers waiting for relief from a terminal built for a smaller Athens will have to wait through a longer, more incremental rollout rather than a single decisive capacity jump.

Michail Kefalogiannis chairs AIA's board, and the airport's leadership has changed hands recently: Giorgos Kallimasias took over as CEO in February 2026, succeeding Yiannis Paraschis after a 19-year tenure. Kallimasias has framed the recalibrated investment as a way to protect both capacity and service quality while positioning Athens as what he has called a resilient and dynamic aviation hub despite regional headwinds.

What's in the first phase

The work is not starting from zero. According to the airport's disclosures, the first phase of construction is already underway and centers on expanding the South Main Terminal Pier and the Satellite Terminal — the two pieces of infrastructure most directly tied to gate capacity and aircraft parking during peak periods, when Athens' summer Mediterranean traffic and the shoulder-season city-break market both spike simultaneously.

Two further elements are targeted for completion in 2027: a new multi-storey car park intended to relieve ground-access congestion, and expansion of the North-West Apron, which adds parking stands for aircraft. A VIP Terminal upgrade is also slated to finish in 2027, part of a broader push across large European airports to capture higher-margin premium and private-aviation traffic alongside mainline growth.

The more consequential piece of the plan — a new North Terminal — is pushed further out. AIA says the tender for that project is planned for the second half of 2027, meaning the airport's most significant single addition to gate and check-in capacity will not begin construction in earnest for well over a year. That North Terminal is the component most closely tied to any eventual move toward the 40-million-passenger design capacity; until its scope and timeline firm up, the phased plan effectively defers the airport's biggest strategic bet.

The traffic behind the decision

The recalibration is happening against a backdrop of continued growth rather than distress. Athens handled 15.75 million passengers in the first half of 2026, up 4.5% on the same period a year earlier. The growth was not evenly split: domestic traffic rose 5.1% while international traffic grew 4.2%, reflecting continued strength in Greece's inbound tourism economy alongside steady demand from Greek travelers flying within the country. The pace of growth also decelerated through the half — the airport recorded 8.1% growth in the first quarter before slowing to 2.2% in the second quarter, a deceleration that likely factored into the board's more cautious, phased approach to committing capital.

On the financial side, Athens' revenue performance diverged somewhat from its traffic growth. Earlier in 2026, the airport disclosed that revenue had actually fallen for a comparable period, a result the airport attributed in part to a discount applied to its Passenger Service Fee — the per-passenger charge airports levy to fund operations and capital works. That dynamic, where passenger volumes rise but fee-driven revenue does not rise in lockstep, adds another layer of pressure on how the airport times and finances a multi-hundred-million-euro construction program: more passengers moving through security lines and gates does not automatically translate into more capital available to build the gates they need.

Athens in the wider European airport-investment picture

Athens' recalibration lands amid a broader wave of capital spending by European hub airports racing to keep pace with recovered and, in many cases, record post-pandemic demand. Heathrow reported a record first half of 2026, handling 40 million passengers with particularly strong growth on Asia-Pacific routes. Hong Kong International Airport — outside Europe but a useful comparator among major hub operators — saw first-half traffic jump 11.7% to 32.8 million. VINCI Airports, the French infrastructure group that operates dozens of airports worldwide, reported more than 159 million passengers across its network in the same six-month window.

Against that backdrop, Athens' 15.75 million first-half passengers keep it a mid-sized but fast-growing European gateway, well behind Heathrow's scale but growing at a healthy clip that outpaces many larger, more mature hubs. The airport's decision to phase rather than front-load its capital program echoes a pattern seen elsewhere in the industry this year, as airport operators balance ambitious long-term capacity targets against near-term construction cost inflation, labor availability, and the harder-to-quantify risk that geopolitical shocks — from regional conflicts affecting Mediterranean and Middle East routing to broader macroeconomic uncertainty — could blunt travel demand before a decade-long building program is complete.

For airlines serving Athens, the practical near-term implication is that the pinch points travelers already notice during peak summer weeks — congested piers, limited apron space, queuing at older terminal infrastructure — will ease only gradually, gate by gate and apron stand by apron stand, rather than through a single new terminal opening. The South Main Terminal Pier and Satellite Terminal work already underway should provide the first relief, but the North Terminal that would represent the airport's most transformative addition remains, for now, a 2027 tender rather than a 2026 groundbreaking.

AIA has not disclosed a detailed year-by-year capital expenditure breakdown for the €950 million figure, nor specified how the financing will be split between shareholder equity, airport charges, and debt. The airport operates under a 50-year concession agreement, now running through June 2046, and its ownership is split among several parties: Greece's privatization fund HRADF holds 30%, the state-backed GROWTHFUND holds 25%, German infrastructure specialist AviAlliance and an affiliated capital vehicle together hold 40%, and the Copelouzos family holds the remaining 5%. That mixed public-private structure means both the Greek state and private infrastructure investors have a direct financial stake in how the phasing decision plays out.

The regulatory squeeze behind slower revenue

The revenue pressure that shaped the board's caution has a specific regulatory root. Athens operates under a price-cap framework that limits the airport's return on equity from its regulated "Air Activities" — chiefly passenger and aircraft charges — to 15%. When the airport's profitability ran ahead of that cap, regulators required AIA to apply a temporary 30% discount to its Passenger Terminal Facility charge, the fee airlines pay per departing passenger, running from October 1, 2025 through April 30, 2026. The mechanism is designed to hand excess profits back to airlines and, indirectly, travelers rather than let the airport bank them, but it also means a period of the airport's strongest passenger growth in years coincided with one of its weakest revenue quarters: first-quarter 2026 total revenue fell 5.7%, or €7.1 million, to €117.9 million, even as traffic rose 8.1% in the same quarter. Profit for the quarter dropped by roughly 28%.

That mismatch between rising footfall and falling regulated income is precisely the kind of financing puzzle that makes a phased, adjustable construction program more attractive than a single locked-in commitment. With the discount now expired as of May 2026, AIA's regulated revenue should normalize somewhat in the second half of the year, but the episode illustrates why airport management was reluctant to commit the full scope of a €1.3 billion program on a fixed timeline while a chunk of its expected cash flow was still constrained by regulatory clawback.

Sources

• Athens airport to phase €950 million expansion as traffic rises — Cyprus Mail
• Athens International Airport Launches €1.3 Billion Expansion – Target 40 Million Passengers by 2032 — Greek City Times
• George Kallimasias succeeds Yannis Paraschis at the helm of Athens Airport — TornosNews.gr
• Record Half For Heathrow Driven By Asia-Pacific Growth — Aviation Week
• Hong Kong International Airport press release, 2026 — Hong Kong International Airport
• VINCI Airports – Traffic as of June 30, 2026 — GlobeNewswire
• Athens Airport Q1 profit falls 28% on passenger charge discount — Investing.com
• Athens International Airport (AIA): 8.1% rise in passenger traffic, but profit decline due to regulated charges in Q1 2026 — Tornos News
• Athens International Airport S.A. — Wikipedia