Cheapest one-way tickets
Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.
Round trips
The cheapest return tickets found recently, price for the whole trip.
Plan the rest of the trip
Price calendar
The lowest one-way fare found for each day over the next 60 days. A dash means no recent fare; you can still pick that day.
October 2026
November 2026
Lowest fares by month
In the fares found this week, November has the lowest: from $99 one-way, against $169 in October. Pick a month to see its cheapest date.
Show as a table
| Month | Cheapest one-way | Date | Stops |
|---|---|---|---|
| October | $169 | Sat, Oct 31 | 1 stop |
| November | $99 | Sat, Nov 28 | Nonstop |
| December | $113 | Wed, Dec 2 | Nonstop |
| January 2027 | $132 | Fri, Jan 22 | Nonstop |
| February 2027 | $126 | Tue, Feb 16 | 1 stop |
| March 2027 | $120 | Thu, Mar 4 | Nonstop |
| April 2027 | $130 | Wed, Apr 14 | 1 stop |
| May 2027 | $110 | Tue, May 4 | Nonstop |
| June 2027 | $146 | Mon, Jun 21 | Nonstop |
| July 2027 | $152 | Thu, Jul 22 | Nonstop |
| August 2027 | $164 | Mon, Aug 23 | Nonstop |
| September 2027 | — |
Fares and weather by month
The lowest one-way fare found for each month, next to the weather in Santiago. Average daily high and low and monthly precipitation, 1991–2020 normals.
| Oct2026 | Nov | Dec | Jan2027 | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lowest fare | $169 | $99 | $113 | $132 | $126 | $120 | $130 | $110 | $146 | $152 | $164 | – |
| High °C | 23° | 27° | 29° | 30° | 30° | 28° | 23° | 19° | 16° | 16° | 18° | 20° |
| Low °C | 9° | 10° | 12° | 14° | 13° | 12° | 9° | 7° | 5° | 4° | 5° | 7° |
| Precipitation mm | 12 | 5 | 3 | 1 | 1 | 4 | 18 | 43 | 80 | 50 | 44 | 25 |
Source: Santiago on Wikipedia, CC BY-SA 4.0.
Questions travellers ask
What is the cheapest month to fly from Buenos Aires to Santiago?
In the fares found this week, November has the lowest: from $99 one-way, against $169 in October.
What is the weather in Santiago in November?
In November, the cheapest month to fly, the average daily high in Santiago is 27 °C and the low 10 °C.
Are there direct flights from Buenos Aires to Santiago?
Yes. Recent fares include nonstop flights with JetSmart, LATAM Airlines Group, Aerolineas Argentinas and Sky Airline.
How long is the flight from Buenos Aires to Santiago?
A nonstop flight takes about 2h 16m. The distance is 713 mi.
Which day of the week is cheapest to fly?
In the fares we have, Tuesday departures are the cheapest, with a typical lowest fare of $129. Friday is the priciest at about $158.
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