How much does a flight from São Paulo to Buenos Aires cost?

Based on 265 offers analyzed, São Paulo to Buenos Aires flights range from BRL 2540 to BRL 9209, with a median price of BRL 4096. Prices vary by travel date, booking timing, and airline. Search for current prices at https://letsfg.co/en/flights/sao-bue

What hidden fees should I expect on São Paulo to Buenos Aires flights?

Ancillary fees add an average of BRL 92 to the base fare on São Paulo–Buenos Aires flights — 2% of the base fare. G3 charges the most (BRL 132) while AR charges the least (BRL 32). See itemized fees at https://letsfg.co/en/flights/sao-bue

Which airline is cheapest on São Paulo to Buenos Aires including all fees?

G3 has the lowest median fare on São Paulo–Buenos Aires at BRL 3626 (median across 115 offers in October 2026). Check current prices at https://letsfg.co/en/flights/sao-bue

Which booking site has the cheapest SAO–BUE flights?

It depends on your dates — no single site is always cheapest. LetsFG searched 3 sources at once (direct airlines, travel agencies and meta-search) in October 2026; the lowest median was BRL 3130, and prices spanned BRL 1409 from cheapest to most expensive source. Run a live search and we surface the lowest, wherever it is, at https://letsfg.co/en/flights/sao-bue

Why do prices vary so much on São Paulo to Buenos Aires routes?

São Paulo–Buenos Aires prices span BRL 2540–BRL 9209 because 4 airlines with different pricing models compete on the route. Budget carriers median BRL 3626; full-service carriers median BRL 4730. Ancillary fees add BRL 32–BRL 132 depending on carrier. Find where your trip lands at https://letsfg.co/en/flights/sao-bue

Flights São Paulo → Buenos Aires

As of October 2026, economy flights from São Paulo to Buenos Aires have a typical range BRL 3139–5057, median BRL 4096. Full range across all 265 offers: BRL 2540–9209. We analyzed 265 offers from 4 airlines in a single price check.

265 offersavg BRL 92 in feesFresh · October 2026

Search São Paulo → Buenos Aires — see your price →

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: São Paulo → Buenos Aires

Based on 265 offers · October 2026. Prices and availability change — run a live search to confirm.

GOLBRL 2540

3h–27h 20mDirect availableNight (21–00)

Bags included

Search GOL

LATAM AirlinesBRL 3115

2h 45m–14hDirect availableMorning (06–12)

Search LATAM Airlines

Aerolineas ArgentinasBRL 4027

3h–24h 15mDirect availableMorning (06–12)

Bags included

Search Aerolineas Argentinas

Sky AirlineBRL 5021

12h 35mMin 1 stopEvening (18–21)

Carry-on: BRL 10Checked: BRL 22

Non-refundable

Search Sky Airline

Bag & seat fees: São Paulo → Buenos Aires

Add-on pricing from the cheapest available offer per airline · October 2026 · BRL

Airline	Carry-on	Checked bag	Seat selection
GOL	Included	—	—
LATAM Airlines	—	—	—
Aerolineas Argentinas	Included	—	—
Sky Airline	BRL 10	BRL 22	—

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 São Paulo to Buenos Aires cost?

Based on 265 offers · October 2026

São Paulo to Buenos Aires flights ranged from BRL 2540 to BRL 9209 across 265 offers analyzed in October 2026. The chart below shows how prices distributed across all 265 offers.

P10: BRL 3139P25: BRL 3648P50: BRL 4096P75: BRL 4630P90: BRL 5057

These 265 offers (October 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 BRL 3648 and BRL 4630

What hidden fees do São Paulo to Buenos Aires flights charge?

Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on São Paulo to Buenos Aires routes. The breakdown below is based on 265 offers analyzed in October 2026.

Ancillary fee breakdown by carrier
Carrier	Avg fee (BRL)	% of base fare
G3	132	4%
LA	67	2%
AR	32	1%
H2	37	1%

GOL: base ~BRL 3494 + fees BRL 132 = ~BRL 3626 total. Aerolíneas Argentinas: base ~BRL 4822 + fees BRL 32 = ~BRL 4854 total.

GOL's BRL 132 ancillary fees narrow the gap with Aerolíneas Argentinas's lower-fee model — the BRL 1328 base difference shrinks to BRL 1228 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 itinerary

Which airline is cheapest from São Paulo to Buenos Aires?

4 airlines flew São Paulo to Buenos Aires in this dataset. 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 (GOL), fares ranged BRL 3028–4829 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 (BRL)	Median (BRL)	Fees (BRL)
GOL	115	3028–4829	3626	132 (4%)
LATAM Airlines	121	3749–4973	4315	67 (2%)
Aerolíneas Argentinas	28	4192–6650	4854	32 (1%)
Sky Airline	1	—	5021	37 (1%)

Where do the best São Paulo → 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 meta-search 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: São Paulo to Buenos Aires flights

São Paulo–Buenos Aires had 265 offers analyzed. Median price: BRL 4096.
G3 charges 4.2x more in ancillary fees than AR — BRL 132 vs BRL 32 avg per booking.
The same route priced BRL 1409 apart depending on where it was booked — the lowest median was BRL 3130. 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 São Paulo to Buenos Aires cost?: Based on 265 offers analyzed, São Paulo to Buenos Aires flights range from BRL 2540 to BRL 9209, with a median price of BRL 4096. Search for your specific dates →
What hidden fees should I expect on São Paulo to Buenos Aires flights?: On average, ancillary fees (bags, seat selection) add BRL 92 to the base fare on São Paulo to Buenos Aires flights. See itemized fees for your itinerary →
Which airline is cheapest on São Paulo to Buenos Aires including all fees?: GOL has the lowest median fare on São Paulo to Buenos Aires at BRL 3626 (median across 115 offers in our snapshot). Check which airline wins on your dates →
Which booking site has the cheapest São Paulo–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 BRL 3130. Run a live search and we'll find the cheapest for you →
Why do prices vary so much on São Paulo to Buenos Aires routes?: São Paulo to Buenos Aires has 4 airlines competing, creating a price range from BRL 2540 to BRL 9209 across 265 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →

4 airlines compete on this route — we check every one

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