Cheap flights from Lisbon to Buenos Aires from $513 LIS → AEP, EZE
Lisbon Portela Airport (LIS) → Jorge Newbery Airport (AEP), Ministro Pistarini Airport (EZE)
The cheapest return found recently is $1,018 with LATAM Airlines Group, 6 Mar 2027 – 28 Mar 2027, found yesterday. The cheapest one-way found recently is $513 with Gol Transportes Aéreos, 21 Jun 2027, found 5 days ago.
- Cheapest one-way found recently
- $513, found 5 days ago
- Cheapest return found recently
- $1,018, 6 Mar 2027 to 28 Mar 2027
- Usual return price
- $1,066 to $1,241
- Cheapest month to fly
- March 2027, return fares from $1,018 found in the last 7 days
Return
The cheapest return fare on each of 3 departure dates is usually $1,066 to $1,241.
Cheapest return found recently
$1,018
6 Mar 2027 – 28 Mar 2027 · LATAM Airlines Group
Lisbon Portela Airport (LIS) → Jorge Newbery Airport (AEP)
Leaves 8:50 a.m. · Return leaves 2:05 a.m. · 39 h 15 min of travel, both ways together
out 1 stop, back 1 stop · via Sao Paulo-Guarulhos International Airport (GRU) · overnight connection · 13 h connection
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$1,018 6 Mar 2027 – 28 Mar 2027found yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 50 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $781 to $1,145.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 9 Dec to 6 Mar 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 22-night return fares leaving within 3 days of 6 Mar 2027 to compare.
Every date we hold
56 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 9 Dec – 19 Dec | $1,367 | LATAM Airlines Group | Lisbon Portela Airport (LIS) → Ministro Pistarini Airport (EZE) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 20 Feb 2027 – 27 Feb 2027 | $1,114 | LATAM Airlines Group | Lisbon Portela Airport (LIS) → Jorge Newbery Airport (AEP) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 6 Mar 2027 – 28 Mar 2027 | $1,018 | LATAM Airlines Group | Lisbon Portela Airport (LIS) → Jorge Newbery Airport (AEP) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
March 2027 is the cheapest month — from $1,018.
Airlines on the cheapest dates: LATAM Airlines Group.
One-way
Not enough comparable prices yet for a usual one-way price.
Cheapest one-way found recently
$513
21 Jun 2027 · Gol Transportes Aéreos
Lisbon Portela Airport (LIS) → Jorge Newbery Airport (AEP)
Leaves 11:40 p.m. · 17 h trip
1 stop
found 5 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$513 21 Jun 2027found 5 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
On 9 Nov, the cheapest one-way we saw was $513.
At $513, the cheapest one-way found recently costs the same.
One day is a short history, so treat this as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other one-way fares leaving within 3 days of 21 Jun 2027 to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Jun 2027 | $513 | Gol Transportes Aéreos | Lisbon Portela Airport (LIS) → Jorge Newbery Airport (AEP) | 1 stop | found 5 days ago | Open this trip |
Airlines on the cheapest dates: Gol Transportes Aéreos.
Premium cabin fares from Lisbon to Buenos Aires
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 6 Mar 2027 – 28 Mar 2027 in another cabin: Premium economy · Business · First
Today's prices for 21 Jun 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Lisbon to Buenos Aires?
Return
Fares 90 to 179 days before departure were typically 17% lower than 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (50 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $1,181 | $948 | +20% | 15 |
| 30–59 days | $1,081 | $943 | +10% | 40 |
| 60–89 days | $1,544 | $1,257 | +57% | 22 |
| 90–179 days | $984 | $781 | Cheapest seen | 50 |
| 180+ days | $1,213 | $1,007 | +23% | 21 |
One-way
Not enough history yet: we have one day of one-way prices, 9 Nov, and compare booking times once 3 booking ranges have 7 days each.
Live price for these dates
The cheapest return found recently is for 6 Mar 2027 – 28 Mar 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Lisbon to Buenos Aires?
The cheapest return found recently is $1,018 with LATAM Airlines Group, 6 Mar 2027 to 28 Mar 2027, found yesterday. The cheapest return fare on each of 3 departure dates is usually $1,066 to $1,241.
How much is a one-way flight from Lisbon to Buenos Aires?
The cheapest one-way found recently is $513 with Gol Transportes Aéreos, 21 Jun 2027, found 5 days ago.
What is the cheapest month to fly from Lisbon to Buenos Aires?
March 2027 is the cheapest month for a return, from $1,018, 6 Mar 2027 to 28 Mar 2027, found yesterday.
How far ahead should I book a flight from Lisbon to Buenos Aires?
In 50 days of prices between 24 Sept and 12 Nov, return fares 90 to 179 days before departure were typically 17% lower than 14 to 29 days before departure.
How long is the flight from Lisbon to Buenos Aires?
The cheapest one-way found recently, with Gol Transportes Aéreos on 21 Jun 2027, takes 17 h with 1 stop.
Which airlines have the cheapest flights from Lisbon to Buenos Aires?
Between 9 Dec and 6 Mar 2027, LATAM Airlines Group has the cheapest return on all 3 departure dates we hold.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work