San Francisco to Buenos Aires flights
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- Lowest observed
- €387, departing 6 Jan 2027 (Last checked: 11 Oct 2026)One-way fare · Priced departure days checked in the last 14 days: 84Check live prices for this route
- Airlines seen
- Alaska Airlines, Arajet, Copa Airlines, Frontier Airlines, Hahn Air Technologies, JetBlue +4 more
- Typical journey time
- 21h 20m
Your next trip, last seen at €387
Lowest observedLATAM Airlines · 2 stops · One wayWhen to fly
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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.
About this route
Explore the fares we observed from San Francisco to Buenos Aires. Prices move often, so pick your dates to see the latest options.
- Route distance
- 10,410 km
- Typical journey time
- 21h 20m
- Airlines seen
- Alaska Airlines, Arajet, Copa Airlines, Frontier Airlines, Hahn Air Technologies, JetBlue +4 more
- Seen on fares with a connection
- United Airlines, LATAM Airlines, Frontier Airlines, Alaska Airlines, Sky Airline, JetSmart
- Alternative airports
- AEP
Route-level information; individual journeys vary.
We have not observed non-stop service on this route; the fares shown include at least one stop.
A clearer picture of your fare
Airport to city: straight-line distance
- San Francisco International Airport (SFO) → San Francisco, city gazetteer reference point (37.7749, -122.4194): ≈ 18 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 San Francisco to Buenos Aires: January 2027, from €387 (checked 11 Oct 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| October 2026 | €439 | 19 |
| November 2026 | €418 | 29 |
| December 2026 | €388 | 23 |
| January 2027 | €387 | 11 |
Lowest fare by day of the week
Cheapest day of the week from San Francisco to Buenos Aires: Wednesday, from €387 (checked 11 Oct 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €417 | 12 |
| Tuesday | €410 | 11 |
| Wednesday | €387 | 13 |
| Thursday | €388 | 11 |
| Friday | €404 | 13 |
| Saturday | €418 | 12 |
| Sunday | €395 | 12 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest one-way fare we saw per airline
Cheapest airline from San Francisco to Buenos Aires: LATAM Airlines, from €387 (checked 11 Oct 2026).
| Airline | Lowest fare | Priced days |
|---|---|---|
| LATAM Airlines | €387Jan 6, 2027 | 13 |
| Frontier Airlines | €388Dec 31, 2026 | 15 |
| Alaska Airlines | €404Jan 1, 2027 | 5 |
| United Airlines | €418Nov 12, 2026 | 46 |
One-way fares checked in the last 14 days. An airline listed here had a fare on at least 3 departure days. Each figure is the lowest we saw, not a guaranteed fare. Connecting itineraries are included; the date is the departure day of that fare.
Frequently asked
How much is a flight from San Francisco to Buenos Aires?
The lowest fare we have observed is €387, found on 11 Oct 2026. Prices move, so read it as a floor rather than a quote.
When is the cheapest month to fly from San Francisco to Buenos Aires?
Cheapest month from San Francisco to Buenos Aires: January 2027, from €387 (checked 11 Oct 2026).
Are there direct flights from San Francisco to Buenos Aires?
Our data holds no non-stop flight from San Francisco to Buenos Aires. The fares on this page include at least one stop.
Which airlines fly from San Francisco to Buenos Aires?
These are the carriers we have seen on the route: Alaska Airlines, Arajet, Copa Airlines, Frontier Airlines, Hahn Air Technologies, JetBlue +4 more.
How long does the flight from San Francisco to Buenos Aires take?
The average journey time across the 82 fares we observed is 23h 56m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed San Francisco to Buenos Aires fares were non-stop?
None of the 84 fares we observed was non-stop; every one included at least one stop. That describes our observations, not every flight that operates.
Which day of the week is cheapest from San Francisco to Buenos Aires?
Cheapest day of the week from San Francisco to Buenos Aires: Wednesday, from €387 (checked 11 Oct 2026).
Which airline has the lowest fare from San Francisco to Buenos Aires?
Cheapest airline from San Francisco to Buenos Aires: LATAM Airlines, from €387 (checked 11 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: 11 Oct 2026