Everything else on this site costs nothing. These cost a little, and we list them because what you get is far bigger than the price.
AR$ 1,817 (AR$ 2,525.63 with an unregistered SUBE card), October 2026Line A opened in 1913 and was the first underground railway in Latin America. Several stations between Plaza de Mayo and Congreso keep their original tiles and iron columns.
Get off at Perú, the best-preserved station, then ride on to Primera Junta for the free historic tram on a weekend. Register the SUBE card online to pay the lower fare.
Source: Red SUBE, Argentina.gob.ar
AR$ 790 at most (AR$ 1,580 with an unregistered SUBE card), October 2026The commuter train from Retiro station runs north through the suburbs to Tigre, the town at the mouth of the Paraná delta, in about an hour. The riverfront, the fruit market and the walk along the Luján river are all free once you are there.
The cheapest day trip from the city by a wide margin. Leave before 10:00, and skip the tourist catamarans in favour of a walk along Paseo Victorica to the art museum's riverside terrace.
Source: Red SUBE, Argentina.gob.ar
AR$ 7,000 on Wednesdays (AR$ 14,000 other days), October 2026The private museum of Latin American art, with Frida Kahlo, Tarsila do Amaral, Diego Rivera and Antonio Berni in the permanent collection. Wednesday is half price for everyone and the museum opens an hour earlier, 11:00–20:00.
Not free, whatever older guides say, but half price is fair for the best collection of its kind. The museum runs open guided walks of the collection on Wednesdays at 17:00.
Source: MALBA
AR$ 742.81 to AR$ 1,151.36 by distance (double with an unregistered SUBE card), October 2026One city bus strings together half the places in this file: it starts in La Boca, runs up Paseo Colón past San Telmo and the Casa Rosada, through Retiro and along Av. Santa Fe to Palermo and Belgrano.
A sightseeing ride for the price of a fare. Board at the La Boca terminus to get a seat, and tell the driver your destination so the right fare is charged.
Source: Red SUBE, Argentina.gob.ar
The Colón is one of the great opera houses of the world and there is no free way to see the inside. The guided tour takes you into the horseshoe auditorium, the Golden Hall and the foyer. Book it on the theatre site a few days ahead, since the English-language slots sell out first.
Everything above is free. This is the only paid pick on the page, chosen because no free option replaces it.
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