The cheapest one-way ticket from Lisbon to Buenos Aires found recently is 488€, on 21 Jun (June 2027, one stop). The most expensive month is December 2026, from 654€. Round trips start at 878€, in March 2027. No direct flights were seen lately; the quickest connection takes 13h 20m. Airlines on this route: Gol Transportes Aéreos, EuroAtlantic Airways, LATAM Airlines Brasil, Air Europa, TAP Air Portugal, LATAM Airlines Group.
Lowest fare by month
| Month | One way | Round trip |
|---|---|---|
| November 2026 | 553€30 Nov · 2 stops | — |
| December 2026 | 654€11 Dec · 2 stops | 1816€19 Dec–1 Jan · 1 stop |
| January 2027 | 617€2 Jan · 1 stop | — |
| February 2027 | 493€18 Feb · 1 stop | — |
| March 2027 | — | 878€1 Mar–14 Mar · 1 stop |
| June 2027 | 488€21 Jun · 1 stop | — |
Cheapest days in June 2027
One way, per adult. Blank days: nobody searched them lately.
At a glance
- Airports
- LIS → AEP · EZE
- Airlines
- Gol Transportes Aéreos, EuroAtlantic Airways, LATAM Airlines Brasil, Air Europa, TAP Air Portugal, LATAM Airlines Group
- Direct flights
- No direct fares seen lately
The rest of the trip to Buenos Aires
- Internet when you land ↗An eSIM for the country, set up before you fly. Handy outside the EU, or when roaming costs extra.
- A ride from the airport ↗A driver waiting at arrivals, at a fixed price.
- Things to do in Buenos Aires ↗Tickets for museums, tours and sights.
Flight delayed by three hours or more, or cancelled? Under EU rules you may be owed up to €600. Check your claim.
Frequently asked questions
How much is a flight from Lisbon to Buenos Aires?
The cheapest one-way ticket found recently is 488€, in June 2027. A round trip starts at 878€. Fares are per adult and change often.
What is the cheapest month to fly from Lisbon to Buenos Aires?
June 2027, from 488€ one way. The most expensive is December 2026, from 654€.
Are there direct flights from Lisbon to Buenos Aires?
No direct fares were seen in recent days, only connections.
How long is the flight from Lisbon to Buenos Aires?
The shortest flight found takes 13h 20m, with a stop.
Which airlines fly from Lisbon to Buenos Aires?
Gol Transportes Aéreos, EuroAtlantic Airways, LATAM Airlines Brasil, Air Europa, TAP Air Portugal, LATAM Airlines Group.
Which airports do flights from Lisbon to Buenos Aires use?
They leave from LIS and land at AEP, EZE.
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Watch this routeFares are the lowest travellers found in recent days' searches, per adult. They change: check the price before you book. Booking links go to our travel partner and are affiliate links: if you book through them we earn a small commission, at no cost to you.