Cheap Flights Buenos Aires to Lisbon: The Complete Guide

Argentina to Portugal is a long haul — around 10,400 km — and no airline flies it nonstop. The good news: cheap flights Buenos Aires to Lisbon start from roughly $900 return in low season, and the stopovers on this route are genuinely useful ones. Compare and book your flight with TopTravelCentre and see every airline combination — via Madrid, São Paulo, Rio or Bogotá — in a single search.

Portugal draws Argentines for good reason: shared language roots, euro-priced shopping, Atlantic coast, and some of the most affordable cities in Western Europe. Getting the airfare right takes a bit of strategy, so here is everything that matters on this route.

Airlines flying Buenos Aires to Lisbon

Every itinerary connects somewhere. These are the combinations that work best:

TAP Air Portugal via São Paulo (GRU) or Rio de Janeiro (GIG) — the natural route to Portugal. You fly LATAM or TAP to Brazil, then TAP’s nonstop Brazil–Lisbon leg. Booked as a single ticket with baggage checked through.
Iberia via Madrid (MAD) — a nonstop Ezeiza–Madrid flight (Iberia or Aerolíneas Argentinas) plus a short hop to Lisbon. Daily frequency and often competitive fares.
Aerolíneas Argentinas + TAP via São Paulo — a comfortable all-partner option departing Ezeiza or Aeroparque.
TAP via Bogotá (BOG) — TAP flies Bogotá–Lisbon nonstop, and it can be combined from Buenos Aires on one ticket.
Air France / KLM via Paris or Amsterdam — longer, but occasionally the cheapest fare to Portugal.

Low-cost carriers like LEVEL appear on the European leg via Barcelona sometimes. Only worth it if the saving is large — see our breakdown of layovers vs direct flights for why separate tickets are risky on two-continent trips.

Airports: Ezeiza and Humberto Delgado

Buenos Aires Ezeiza (EZE) handles all intercontinental flights and sits 35 km from the city centre. Departure formalities are slow, and Europe-bound flights cluster in the late afternoon and evening — arrive three hours before. Domestic flights use Aeroparque (AEP), closer to downtown; if your trip starts elsewhere in Argentina, budget for the transfer between the two airports.

Lisbon Humberto Delgado (LIS) is one of Europe’s most convenient airports: just 7 km from the centre, reachable by metro (red line) in 20–25 minutes or a €10–15 taxi. It is small for the traffic it carries, so security queues swell at peak times. For connections, allow 1 h 15 – 1 h 30. Continuing to Porto or Madeira is easy — frequent flights leave from the same terminal.

How much does it cost?

Indicative return fares per person:

Low season (March, May, October–November): from $900–$1,050
Shoulder season (April, June, September): from $1,050–$1,250
High season (December–January, July–August): from $1,250–$1,600

These are reference points — check your exact dates on TopTravelCentre for live fares, which move daily.

Best time to fly and book

November and March are consistently the cheapest months on this route.
Avoid December–January (Argentine summer plus holidays) and July–August (European summer).
Book 2–4 months ahead; for Christmas travel, 5–6 months.
Departing Monday to Thursday usually lowers the fare.
September–October is the sweet spot: excellent weather in Portugal and low-season prices. For broader timing tactics, see when to buy flights.

Money-saving tips

Compare Madrid vs São Paulo connections. These are the two cheapest gateways from Buenos Aires — the difference can exceed $150, so run both searches every time.
Always book one ticket. With connections spanning two continents, a delay is likely at some point; on a single ticket the airline must rebook you free.
Use the free stopover. TAP lets you add a stop in São Paulo or Rio in one direction on the way to Lisbon — or stop in Lisbon itself when flying onward through Europe. Two trips in one.
Travel hand-luggage only. The cheapest fares charge for checked bags; 8 kg of carry-on saves $80–$150 per leg.
Check Porto as an alternative. Flying into Porto and taking the 3-hour fast train south can be cheaper — and you see the Portuguese coast on the way.

If you’re combining Spain with Portugal, open-jaw tickets (into Lisbon, out of Madrid, or the reverse) are often priced like a simple return — see our Buenos Aires to Barcelona route guide for the Spanish side of the trip.

FAQs

How long is the trip from Buenos Aires to Lisbon? 15–20 hours depending on the connection. Via Madrid the transatlantic leg takes about 12 hours; via São Paulo the total runs 16–18 hours.

Is there a nonstop flight Buenos Aires–Lisbon? No, not on a regular schedule. The best options connect in São Paulo, Rio, Madrid or Bogotá with TAP or Iberia.

Do Argentines need a visa for Portugal? Not for tourism stays up to 90 days in the Schengen area with a valid passport. Border officers may ask for proof of accommodation, funds and medical insurance.

How do I get from Lisbon airport to the city centre? Red line metro in about 25 minutes, or a taxi for €10–15 — it is one of the closest airports to a city centre in Europe.

When is the best time to visit Lisbon? April–June and September–October: mild weather, beautiful light and fewer crowds than midsummer.

Book your flight to Lisbon

From the Río de la Plata to the Tagus on a single ticket. Search and book your Buenos Aires–Lisbon flight with TopTravelCentre and lock in the best fare available today.