Your next trip, last seen at €45
Lowest observedWhen to fly
Explore datesMore dates worth a look
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The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
- Lowest observed
- €45, departing 24 Oct 2026 (Last checked: 7 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 85Check live prices for this route
- Airlines seen
- Aerolineas Argentinas, Sky Airline, LATAM Airlines, Boliviana de Aviación, JetSmart, KLM +1 more
- Reported fastest flight
- 2h
- Non-stop
- Yes
About this route
Explore the fares we observed from Santiago to Buenos Aires. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,140 km
- Reported fastest flight
- 2h
- Airlines seen
- Aerolineas Argentinas, Sky Airline, LATAM Airlines, Boliviana de Aviación, JetSmart, KLM +1 more
- Alternative airports
- AEP
Route-level information; individual journeys vary.
Published schedules report non-stop service with Aerolineas Argentinas, Sky Airline, LATAM Airlines. Check current timetables.
A clearer picture of your fare
Airport to city: straight-line distance
- Comodoro Arturo Merino Benítez International Airport (SCL) → Santiago, city gazetteer reference point (-33.4489, -70.6693): ≈ 12 km.
- Aeroparque Jorge Newbery (AEP) → Buenos Aires, city gazetteer reference point (-34.6084, -58.3732): ≈ 7 km.
- Ezeiza International Airport - Ministro Pistarini (EZE) → Buenos Aires, city gazetteer reference point (-34.6084, -58.3732): ≈ 28 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest month from Santiago to Buenos Aires: October 2026, from €45 (checked 7 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €45 | 20 |
| November 2026 | €46 | 30 |
| February 2027 | €46 | 25 |
| March 2027 | €45 | 10 |
Lowest fare by day of the week
Cheapest day of the week from Santiago to Buenos Aires: Wednesday, from €45 (checked 7 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €46 | 12 |
| Tuesday | €46 | 10 |
| Wednesday | €45 | 14 |
| Thursday | €46 | 13 |
| Friday | €46 | 12 |
| Saturday | €45 | 13 |
| Sunday | €46 | 11 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Santiago to Buenos Aires by days until departure (8 to 30 days): €45 (checked 7 Oct 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €47 | 8 |
| 8 to 30 days | €45 | 23 |
| 31 to 60 days | €46 | 19 |
| 61 days or more | €45 | 35 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Santiago to Buenos Aires?
The lowest fare we have observed is €45, found on 7 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from Santiago to Buenos Aires?
Cheapest month from Santiago to Buenos Aires: October 2026, from €45 (checked 7 Oct 2026).
Are there direct flights from Santiago to Buenos Aires?
Yes. We have seen non-stop flights on this route, flown by Aerolineas Argentinas, Sky Airline, LATAM Airlines.
Which airlines fly from Santiago to Buenos Aires?
These are the carriers we have seen on the route: Aerolineas Argentinas, Sky Airline, LATAM Airlines, Boliviana de Aviación, JetSmart, KLM +1 more.
How many of the observed Santiago to Buenos Aires fares were non-stop?
94 of the 101 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from Santiago to Buenos Aires?
Cheapest day of the week from Santiago to Buenos Aires: Wednesday, from €45 (checked 7 Oct 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide
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Recently observed fares. Prices may change.
Last checked: 7 Oct 2026