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Cheap flights Madrid to Buenos Aires: how to pay less on the long haul
The Madrid–Buenos Aires route regularly shows return fares from €550 — remarkable for a 12-hour flight — because three airlines compete nonstop and several more fight for one-stop traffic. Start by searching and booking your Madrid–Buenos Aires flight with TopTravelCentre: fares on this corridor swing by hundreds of euros depending on the month.
Who flies the route
- Iberia — daily nonstops from Barajas T4, the schedule backbone of the route.
- Air Europa — nonstop service, frequently the cheapest of the direct options.
- Aerolineas Argentinas — the Argentine flag carrier, nonstop, with connections across Argentina.
- LATAM, Avianca, American and others — one-stop itineraries via Lima, Bogota, Sao Paulo or the US, occasionally undercutting the nonstops.
Nonstop is the smart default here: one-stop routings add 4–8 hours on a route that is already an overnight flight, so they only make sense with savings above €150.
Airports
Madrid-Barajas (MAD). Nonstops to Buenos Aires leave from T4/T4S (Iberia, and partners) or T1/T2 depending on carrier. Metro line 8 and the C-1 train reach the centre in under 40 minutes. Connecting through Madrid from elsewhere in Europe? Allow 3 hours minimum — this is a long-haul departure with passport checks at the gate.
Buenos Aires Ezeiza (EZE). The international airport, about 45–60 minutes from the city centre by taxi, remis or the Manuel Tienda León bus. Note the domestic airport (Aeroparque, AEP) is separate: if you’re flying on to Patagonia or Iguazu, leave at least 4 hours between arrival and a domestic connection, and remember many Argentine domestic fares only include cabin bags.
Flight time
The nonstop Madrid to Buenos Aires flight takes around 12 h 45 min — one of the longest routes out of Spain. The return is about 11 h 30 min with tailwinds. One-stop routings via Lima or Bogota total 16–20 hours.
Cheapest months and prices
Indicative return fares in economy, “from”, checked on public flight search engines and official airline sites:
| Season | Indicative fare |
|---|---|
| March–May (Argentine autumn) | from €550 |
| June–August (southern winter, low demand) | from €600 |
| September–November | from €650 |
| December–February (Argentine summer + holidays) | €850+ |
Argentina’s seasons are flipped: their summer (December–February) is the expensive window, and the cheapest fares cluster in the shoulder months of March–May.
Currency is the other big variable. Argentina’s economy makes on-the-ground costs swing for foreign visitors, but airfares in euros from Spain are stable — the fare you see is the fare you pay. One thing that does move prices: Argentine residents flying home for the holidays crowd the December and January departures months in advance, so those flights sell out early and expensively. If your dates are flexible, check the March–May window now — the difference versus December routinely tops €300.
Tips to pay less
- Book 3–5 months ahead — long-haul fares to Argentina rise sharply inside 6 weeks of departure.
- Fly midweek: Tuesday and Wednesday departures are consistently €80–150 below weekend fares.
- Watch Air Europa sales: they set the route’s floor several times a year; Iberia usually matches within days.
- Compare one-stop itineraries via Lima or Bogota only if they save €150+ — the extra hours at 12+ hours of flying are a real cost.
- Consider an open-jaw: into Buenos Aires, out of Santiago. Two airlines, two countries, sometimes for less than a simple return — see our Madrid to Santiago de Chile guide.
Frequently asked questions
How long is the flight from Madrid to Buenos Aires? About 12 h 45 min nonstop; the return is roughly 11 h 30 min thanks to favourable winds.
Which airlines fly direct? Iberia, Air Europa and Aerolineas Argentinas fly Madrid–Buenos Aires nonstop.
What is the cheapest month? April and May, followed by the southern winter months of June–August.
Is it cheaper to book Madrid–Buenos Aires separately from a domestic Argentine flight? Almost always, yes. Domestic fares within Argentina are volatile and luggage rules are strict; book your international return first and buy domestic legs (Buenos Aires–Bariloche, Iguazu, Ushuaia) on their own, checking the baggage allowance for each.
Do I need a visa for Argentina? Most European passport holders enter visa-free for up to 90 days. Check official requirements before booking.
Book your flight today
Three nonstop airlines and fares from €550 make Buenos Aires one of the best-value long-haul destinations from Spain. Search and book your Madrid–Buenos Aires flight with TopTravelCentre, and if South America is calling more broadly, see our guides to cheap flights Madrid to Bogota or the complete cheap flights playbook.