Cheap flights from Santiago to Buenos Aires from $81 SCL → AEP, EZE

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $131 to $227.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 18 Nov to compare.

Every date we hold

464 fares on 18 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $144.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $46 to $71.

At $81, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

Yes. Among one-way fares leaving within 3 days of 5 Mar 2027, 8 Mar 2027 costs $61: $21 less than the cheapest found recently.

JetSmart · Arturo Merino Benitez Airport (SCL) → Jorge Newbery Airport (AEP) · nonstop · found 4 days ago

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Every date we hold

220 fares on 37 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $50.

Return

Fares 60 to 89 days before departure were typically 43% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 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.

One-way

Fares 90 to 179 days before departure were typically 59% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 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.

How much is a return flight from Santiago to Buenos Aires?

The cheapest return found recently is $210 with Sky Airline, 18 Nov to 25 Nov, found 2 days ago. The cheapest return we hold, of any age, is $144 with Sky Airline, 13 Jan 2027 to 19 Jan 2027, found 7 days ago. The cheapest return fare on each of 18 departure dates is usually $195 to $240.

How much is a one-way flight from Santiago to Buenos Aires?

The cheapest one-way found recently is $81 with JetSmart, 5 Mar 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $50 with Sky Airline, 13 Dec, found 7 days ago. The cheapest one-way fare on each of 37 departure dates is usually $64 to $89.

What is the cheapest month to fly from Santiago to Buenos Aires?

January 2027 is the cheapest month for a return, from $144, 13 Jan 2027 to 19 Jan 2027, found 7 days ago. December 2026 is the cheapest month for a one-way, from $50, 13 Dec, found 7 days ago.

Every date in January 2027

Every date in December 2026

How far ahead should I book a flight from Santiago to Buenos Aires?

In 49 days of prices between 24 Sept and 11 Nov, return fares 60 to 89 days before departure were typically 43% lower than 0 to 6 days before departure. One-way fares 90 to 179 days before departure were typically 59% lower than 0 to 6 days before departure.

Is there a direct flight from Santiago to Buenos Aires?

Yes, the cheapest nonstop return found recently is $210 with Sky Airline, 18 Nov to 25 Nov, found 2 days ago. The cheapest nonstop one-way found recently is $81 with JetSmart, 5 Mar 2027, found 2 days ago.

How long is the flight from Santiago to Buenos Aires?

The cheapest nonstop one-way found recently, with JetSmart on 5 Mar 2027, takes 2 h 7 min from Arturo Merino Benitez Airport (SCL) to Jorge Newbery Airport (AEP).

Which airlines have the cheapest flights from Santiago to Buenos Aires?

Between 16 Nov and 20 Mar 2027, Sky Airline has the cheapest return on 10 of the 18 departure dates we hold, and JetSmart on 8. Between 25 Nov and 1 Sept 2027, Sky Airline has the cheapest one-way on 21 of the 37 departure dates we hold, and JetSmart on 16.