Buenos Aires Subway Extension to Aeroparque Proposed
Argentina · Urban Infrastructure
Key Facts
—The proposal. UBA transport experts want to reconfigure Lines E, F, G, and H to reach Aeroparque Jorge Newbery and Puerto Madero.
—Current status. The plan is an academic exercise with no legal force, tender, or approved city funding behind it.
—Official projects. Only Line F, running from Barracas to Palermo, has an authorised tender and defined budget as of mid-2026.
—The missing links. Puerto Madero has no Subte service, and Aeroparque lacks any high-capacity rail connection despite decades of discussion.
—Surface alternatives. Recent bus-route changes and a road tunnel project near Aeroparque address airport access, but rely on roads rather than rail.
A team of transport specialists from the University of Buenos Aires has revived a technical proposal for a subway extension to Aeroparque and Puerto Madero, aiming to close two of the city’s most persistent transit gaps, though the plan remains an academic blueprint with no official backing.
What the UBA plan actually proposes
The project, presented by specialists from the UBA Department of Transport, is not a single-line addition but an integral redesign of the Subte network. It reimagines the roles of Lines E, F, G, and H to create new north–south corridors and finally bring rail service to Aeroparque Jorge Newbery and Puerto Madero.
Line E would be converted into a diametral line crossing the city centre and continuing along Avenida Libertador, Pueyrredón, and Las Heras up to Plaza Italia. This would create a major transfer hub with Line D and improve connections with the Catalinas business district and the macro-centre.
Lines H and F would see their northern terminals reconfigured. Crucially, Line F would be extended toward the Río de la Plata, enabling rail interchanges and providing the backbone for a Subte-based connection to Aeroparque and even Ciudad Universitaria.
Line G, meanwhile, would be traced under Avenida Córdoba instead of Santa Fe, with stations at 9 de Julio, Florida, and Catalinas before entering Puerto Madero along Avenida Juana Manso — giving the waterfront district its first true subway access.
Why Aeroparque and Puerto Madero remain disconnected
Puerto Madero is one of Buenos Aires’ most modern and dense business and residential districts, yet no subway line currently serves it. Several past master plans mentioned extending Line B or adding a branch beyond Leandro N.
Alem, but these ideas never advanced beyond conceptual stages and no official project is in force today.
Aeroparque presents an equally striking gap. The Belgrano Norte commuter rail line runs directly behind the airport terminal, and multiple proposals over the years have suggested simply building a station there — a relatively low-cost intervention compared to new tunnels.
A Subte station at Aeroparque was the second most-voted transport idea in a 2017 public consultation, yet no station has been built and no Subte access to the airport has ever entered official planning.
The UBA proposal responds directly to these long-recognised missing links: a domestic airport without high-capacity rail access and a central waterfront district without Subte service. International practice generally favours rail or metro links to major airports, and the plan would align Buenos Aires with that paradigm by exploiting existing railway corridors and Subte lines.
The official reality: what is actually being built
It is essential to distinguish between the UBA academic proposal and the projects that have legal force and funding. As of mid-2026, there is no official, tendered project specifically to extend the Subte to Aeroparque or Puerto Madero.
The city’s main concrete initiative is the new Line F, a north–south axis between Barracas and Palermo approved under Resolution RESOL-2025-568-MIGC and now entering tendering.
Line F aims to connect Barracas, Constitución, San Cristóbal, Monserrat, San Nicolás, Recoleta, and Palermo, with transfers to all six existing lines and the Roca Railway. Its approved alignment does not include an extension to Aeroparque, and project engineers have explicitly noted that no northern prolongation beyond Palermo is contemplated in the current contract for economic reasons.
The long-term expansion of the Subte is legally based on Ley 670/01, which defines new Lines F, G, and I and their general corridors. Aeroparque station or a Puerto Madero branch are not explicitly included in these laws, which is one reason engineers caution that significant route changes would require new legislation and financing.
Since the opening of Line E’s new stations at Correo Central, Catalinas, and Retiro in 2019, no new Subte stations are under construction, and no expansion tender other than Line F is active.
Surface fixes while the subway extension to Aeroparque waits
While the UBA Subte-to-Aeroparque proposal is not yet official, other infrastructure and bus-network changes pursue similar goals of better access. The national government issued Resolution 43/2026, modifying a bus line’s route to reach Aeroparque and improving short-term access by surface transport.
Another measure, Resolution 50/2026, reorganises Línea 195 with five different itineraries — basic and express — strengthening connectivity between Buenos Aires and the southern Greater Buenos Aires corridor. The Buenos Aires city government is also building the “Anillo de Pampa,” a major road and pedestrian-cyclist infrastructure intervention near Aeroparque that includes a two-way vehicle tunnel and a circular pedestrian bridge, designed to reduce travel times in this critical access zone.
These measures show that airport access is on the political agenda, but solutions so far rely on roads and buses rather than the kind of high-capacity rail extension advocated by UBA transport experts. At the national level, major rail tunnel projects like the Red de Expresos Regionales (RER) have been suspended and remain with no construction plans, underscoring the broader limitation on big transport works.
What a completed subway extension to Aeroparque would mean for the city
According to UBA’s analysis, turning Line E into a diametral line and extending F and G as proposed would create new transfer hubs at Plaza Italia, Catalinas, and downtown nodes. More direct north–south travel would cut journey times and ease congestion across the network.
Line F, even in its official Barracas–Palermo form, is expected to benefit over 300,000 daily users and relieve crowding on Line C.
Extending this logic to Aeroparque and Puerto Madero would connect high-demand employment, residential, and tourist zones to the rail network. Puerto Madero currently relies largely on limited bus service and car access; a Subte line entering via Juana Manso would transform accessibility for workers, residents, and visitors.
For investors and expats, improved fixed-rail connectivity to the domestic airport and the premium waterfront district would enhance property values and reduce friction for business travel — a tangible upgrade to Buenos Aires’ liveability and operational efficiency.
Frequently Asked Questions
Is the Buenos Aires Subte being extended to Aeroparque?
No. As of mid-2026, there is no official, tendered project to extend the Subte to Aeroparque Jorge Newbery.
The UBA proposal is a technical academic plan with no legal force or funding. The only new Subte line with an authorised tender is Line F, running from Barracas to Palermo, and its approved alignment does not include an airport extension.
Does any subway line serve Puerto Madero in Buenos Aires?
No subway line currently serves Puerto Madero. Several past master plans mentioned extending Line B or adding a branch beyond Leandro N.
Alem, but these never advanced beyond conceptual stages. The UBA proposal would route Line G under Avenida Juana Manso to provide the first true Subte access to the district.
What is the current status of Buenos Aires Subte expansion?
Since the opening of Line E’s new stations in 2019, no new Subte stations are under construction. The only active expansion tender is for Line F between Barracas and Palermo, approved under Resolution RESOL-2025-568-MIGC.
Long-term expansion is legally framed by Ley 670/01, which defines future Lines F, G, and I, but Aeroparque and Puerto Madero are not explicitly included in these laws.
Connected Coverage
Sources: UBA Department of Transport.
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