Merlo
Introduction
Merlo is the head city of the partido of the same name and the seat of its municipal government. It sits within the Greater Buenos Aires urban area, in Buenos Aires Province, Argentina.
Getting around
Getting around Merlo is shaped by its position within Greater Buenos Aires, west of the capital, so most journeys involve the suburban rail network or the region's dense bus system. The train is generally the fastest and most popular way to reach Merlo from Buenos Aires: the city sits on the Sarmiento Line, with frequent services departing from Once Station, and the arrival station is centrally located, making it a convenient drop-off if your accommodation is near the middle of town. Local buses, known as colectivos, run an extensive, high-frequency network connecting Merlo with central Buenos Aires and neighbouring districts, and they are often the easiest way to reach a specific address that isn't close to the station. To ride buses and trains in the region you need the unified SUBE card, which you can buy and top up at kiosks and railway stations; bus drivers do not accept cash, so pick one up early. Taxis and ride-hailing apps both operate in the area and are a useful fallback when public transport doesn't go where you need, or when you're travelling late or with luggage. Because the rail station is central, much of the core of Merlo is reachable on foot once you arrive by train, but beyond the centre the city spreads into the wider metropolitan area, so walking suits short local errands rather than crossing the city. Merlo has no civil airport of its own, so you'll arrive through Ezeiza, the main international gateway, or Aeroparque Jorge Newbery for domestic and neighbouring-country flights; from either, your realistic options are a taxi or pre-booked transfer for a direct ride, or transport into Buenos Aires followed by the Sarmiento Line train from Once Station. The train route is the cheaper choice, the taxi or transfer the simpler one, especially with luggage or at an awkward hour. At night, stay on well-lit streets and keep an eye on your bags on public transport.Three days in Merlo
Day one: Begin in Merlo itself, a district of Buenos Aires Province within Greater Buenos Aires. Take the Sarmiento Line from Once Station in Buenos Aires to reach it, using a SUBE card for the local train. Because Merlo sits within the province, taxis are also an option once you arrive. Settle into the neighbourhood and get your bearings on foot.
Day two: Use Merlo as your base for exploring the wider area. The Sarmiento Line connects you back toward Buenos Aires, so you can travel in for the day and return in the evening. If you are arriving from abroad, note that Ezeiza and Aeroparque Jorge Newbery are the two airports serving the region, and both are reached via Buenos Aires rather than directly from Merlo.
Day three: Spend a final day in Merlo before continuing your journey. Whether you are heading onward to Buenos Aires or out to Argentina more broadly, the Sarmiento Line and local taxis are your main ways of getting around. Plan your departure with the SUBE card in hand and allow time for the trip back to Once Station.