Route brief · SAO → EZE
São Paulo → Buenos Aires
$258
−36% vs typical
seasonal median $400 · difference $142
Sep 11 – Sep 17 · 6 nights
EthiopianNonstop
- Usual monthly lows
- $317–$414
- Board rank
- Stronger than 85%
- Route sample
- 9 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefEZEBuenos AiresEuropean bones, Latin hours — and a peso that has made this one of the cheapest big cities to spend a week in.Best windowOct–Dec · Mar–MayAirportsEzeiza (EZE) · Aeroparque (AEP)All routes into Buenos AiresWhen this route gets cheap.
Cached-fare history: across 9 months, Sep is the cheapest for SAO → EZE. Best time to be there: Oct–Dec · Mar–May.
Fares bottom out in September around $258 and peak in July near $568 — a $310 spread across the 9 months we track. The cheapest itinerary we are tracking flies Ethiopian nonstop and takes about 3 hours outbound, on a 6-night trip. At $258 for 1,701 km each way, that works out to about $76 per 1,000 km flown. That is above the $41 typical of short-haul fares here.
Day-level prices for the next 3 months
Tap any day → live search
The median cached fare across this calendar is 7% higher than when tracking began on Aug 8 — $331 then versus $353 now, across 5 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $247, on Sep 8.
September 2026
Cheapest in Sep · around $258
36% below the $400 typical fare
Cheapest round-trip fare found per month · São Paulo → Buenos Aires · cached-price history
Route facts
- Airports
- Guarulhos (GRU) · Congonhas (CGH) · Viracopos (VCP) ↔ Ezeiza (EZE) · Aeroparque (AEP)
- Flight time
- ~3 hours outbound
- Distance
- ~1,701 km each way
- Typical price
- $400 round-trip (seasonal median)
- Airlines on the board
- Ethiopian
- Itineraries
- Nonstop available
- Best months to visit
- Oct–Dec · Mar–May
SAO → EZE, answered.
Is $258 a good price for São Paulo to Buenos Aires?
Yes — the seasonal median for this route is around $400 round-trip. At $258 you're 36% below that, saving about $142, which we rate great for this route.
What is the cheapest month to fly from São Paulo to Buenos Aires?
Across 9 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Buenos Aires are Oct–Dec · Mar–May — when those overlap, that's your window.
How far in advance should I book SAO → Buenos Aires?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. What we can measure is which month is cheap: across 9 months of cached fares, Sep comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from São Paulo to Buenos Aires?
Yes — the current board includes nonstop fares (Ethiopian). The outbound leg runs around 3 hours.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Buenos Aires?
Lock the flight first — then compare stays for Sep 11 – Sep 17 · 6 nights.
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Missed it?
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