Flights San Francisco → Buenos Aires
As of November 2026, economy flights from San Francisco to Buenos Aires have a typical range USD 1068–5308, median USD 1337. Full range across all 107 offers: USD 796–10908. We found 36% of 107 offers from budget carriers (around USD 1305) and 64% from full-service carriers (around USD 1337).
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: San Francisco → Buenos Aires
Based on 107 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: San Francisco → Buenos Aires
Add-on pricing from the cheapest available offer per airline · November 2026 · USD
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Frontier | — | — | — |
| Alaska Airlines | Included | USD 35 | — |
| Sun Country Air | — | — | — |
| Delta | — | USD 35 | — |
| American Airlines | — | USD 35 | — |
| United Airlines | Included | USD 70 | — |
| LATAM Airlines | — | USD 40 | — |
| Avianca | — | USD 30 | — |
| Aeromexico | Included | Included | — |
| Copa Airlines | — | USD 40 | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from San Francisco to Buenos Aires cost?
Based on 107 offers · November 2026
San Francisco to Buenos Aires flights ranged from USD 796 to USD 10908 across 107 offers analyzed in November 2026. Two fare clusters detected: budget fares around 1302 and premium fares around 5346 The chart below shows how prices distributed across all 107 offers.
These 107 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between USD 1168 and USD 1579
What hidden fees do San Francisco to Buenos Aires flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on San Francisco to Buenos Aires routes. The breakdown below is based on 107 offers analyzed in November 2026.
| Carrier | Avg fee (USD) | % of base fare |
|---|---|---|
| F9 | 10 | 1% |
| AS | 45 | 5% |
| SY | 15 | 2% |
| DL | 34 | 2% |
| AA | 57 | 5% |
| UA | 64 | 2% |
| LA | 70 | 3% |
| AV | 40 | 1% |
| AM | 0 | 0% |
| CM | 55 | 2% |
Alaska Airlines: base ~USD 919 + fees USD 45 = ~USD 964 total. Frontier Airlines: base ~USD 1012 + fees USD 10 = ~USD 1022 total.
Alaska Airlines's USD 45 ancillary fees narrow the gap with Frontier Airlines's lower-fee model — the USD 93 base difference shrinks to USD 58 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.Fee levels vary significantly across carriers on this route — some carriers charge 50%+ above the base fare in ancillary fees.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from San Francisco to Buenos Aires?
13 airlines flew San Francisco to Buenos Aires in this dataset. The route shows a clear split between low-cost and full-service carriers. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (Alaska Airlines), fares ranged USD 830–1098 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (USD) | Median (USD) | Fees (USD) |
|---|---|---|---|---|
 Alaska Airlines | 2 | 830–1098 | 964 | 45 (5%) |
 Sun Country Airlines | 1 | — | 969 | 15 (2%) |
 Frontier Airlines | 2 | 893–1150 | 1022 | 10 (1%) |
 American | 5 | 1068–1135 | 1074 | n/a |
 Delta | 4 | 920–1284 | 1104 | n/a |
 United | 4 | 1038–1146 | 1105 | n/a |
 American Airlines | 21 | 1068–1457 | 1305 | 57 (4%) |
 AM | 5 | 1270–1501 | 1337 | 0 (0%) |
 Delta Air Lines | 19 | 1232–1888 | 1475 | 34 (2%) |
 LATAM Airlines | 22 | 1284–4971 | 1520 | 70 (5%) |
 Avianca | 3 | 1480–5689 | 2122 | 40 (2%) |
 Copa Airlines | 1 | — | 2545 | 55 (2%) |
 United Airlines | 18 | 1104–5323 | 3398 | 64 (2%) |
Where do the best San Francisco → Buenos Aires prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: San Francisco to Buenos Aires flights
- Full-service carriers on San Francisco–Buenos Aires cost 1.5x more than budget airlines (USD 1576 vs USD 1022 median; overall median USD 1337).
- LA charges 7.0x more in ancillary fees than F9 — USD 70 vs USD 10 avg per booking.
- The same route priced USD 726 apart depending on where it was booked — the lowest median was USD 1074. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from San Francisco to Buenos Aires cost?
- Based on 107 offers analyzed, San Francisco to Buenos Aires flights range from USD 796 to USD 10908, with a median price of USD 1337. Search for your specific dates →
- What hidden fees should I expect on San Francisco to Buenos Aires flights?
- On average, ancillary fees (bags, seat selection) add USD 53 to the base fare on San Francisco to Buenos Aires flights. See itemized fees for your itinerary →
- Which airline is cheapest on San Francisco to Buenos Aires including all fees?
- Alaska Airlines has the lowest median fare on San Francisco to Buenos Aires at USD 964 (median across 2 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest San Francisco–Buenos Aires flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was USD 1074. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on San Francisco to Buenos Aires routes?
- San Francisco to Buenos Aires has 13 airlines competing, creating a price range from USD 796 to USD 10908 across 107 offers. There are two distinct fare clusters on this route: budget options and premium fares. Find where your trip lands in the distribution →
13 airlines, two price clusters — find which fits your budget
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