Route brief · BOS → SAO

Boston → São Paulo

found 10h ago

$357

round-trip · too little price history on this route to compare

Nov 27 – Dec 5 · 8 nightsLATAMNonstop

Cached fare — the booking search re-prices live before you pay.

Destination briefSAOSão PauloNot pretty and not trying to be — the food, the music and the fares out of here beat Rio on every count.Best windowMar–May · Sep–NovAirportsGuarulhos (GRU) · Congonhas (CGH) · Viracopos (VCP)All routes into São Paulo

01Fare seasonality

When this route gets cheap.

Best time to be in São Paulo: Mar–May · Sep–Nov. Fare history for this route is still thin, so we make no seasonal call yet.

The cheapest itinerary we are tracking flies LATAM nonstop and takes about 9.5 hours outbound, on a 8-night trip. At $357 for 7,746 km each way, that works out to about $23 per 1,000 km flown. That is well under the $44 that long-haul fares on this board typically run. Of the 19 departure cities we track at a similar distance from São Paulo, this is the cheapest right now — 28% under the next one, New York. It is also the 2nd cheapest of the 27 routes of similar length we watch out of Boston. We have 3 months of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage.

The 8 days we hold a cached fare for

Tap a date → live search

The median cached fare across this calendar is 14% higher than when tracking began on Aug 8 — $592 then versus $675 now, across 4 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 $346, on Oct 25.

These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.

Cached fares · checked 22 Aug 2026

Seasonality data is still being collected for this route — 3 months of cached prices so far, too few to chart.

Route facts

Airports: Logan (BOS) ↔ Guarulhos (GRU) · Congonhas (CGH) · Viracopos (VCP)
Flight time: ~9.5 hours outbound
Distance: ~7,746 km each way
Airlines on the board: LATAM
Itineraries: Nonstop available
Best months to visit: Mar–May · Sep–Nov

02Good to know

BOS → SAO, answered.

How far in advance should I book BOS → São Paulo?

We do not publish a number for this, because we cannot measure it yet.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. See /guides/what-moves-a-flight-price/ for the levers we can measure.

Are there nonstop flights from Boston to São Paulo?

Yes — the current board includes nonstop fares (LATAM). The outbound leg runs around 9.5 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 São Paulo?

Lock the flight first — then compare stays for Nov 27 – Dec 5 · 8 nights.

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Missed it?

Cached fares expire. This route has a feed of its own — follow it and the next BOS → SAO drop reaches you as soon as we find it.

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