Exceptional1 stop · 17.5h
BOS to BKKThailand
Bangkok
$506
usually $1,140
−56%
Most monthly lows $915–$1,187. Cheaper than every other month on record (5).
- Travel dates
- 7 Mar '27 – 17 Apr '27 · 41 nights
- Airline
Turkish Airlines· $18 per 1,000 km
Flights · BOS → SAO
Boston to São Paulo
Best fare, round trip
$834
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Fri 23 Oct
- Return
- Fri 13 Nov
- Stay
- 21 nights
- Flight
- Nonstop · 9.5h
- Airline
LATAM
Cached fare — the booking search re-prices live before you pay.
BrazilSão 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)Every route into São PauloFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking flies LATAM nonstop and takes about 9.5 hours outbound, on a 21-night trip. At $834 for 7,746 km each way, that works out to about $54 per 1,000 km flown. That is above the $44 per 1,000 km typical of long-haul fares here. Across the 19 departure cities we track at a similar distance from São Paulo, this fare ranks 14th — 54% above the $542 from Mexico City. For context, the middle fare among the 23 routes of similar length we watch out of Boston is $753. We have 1 month 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. Fare history here is still too short to name a cheap season. The best time to be in São Paulo: Mar–May · Sep–Nov.
The 2 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 27% higher than when tracking began on 8 Aug — $592 then versus $750 now, across 15 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 25 Oct.
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 15 Oct 2026
We are still collecting this route's months — 1 month 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
Good 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. Our guide Why flight prices change covers 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 17 October). 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 23 Oct – 13 Nov · 21 nights.
Browse hotelsMissed 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.
Follow this route’s feedKeep browsing
Related routes on the board.
Rare1 stop · 17h
BOS to TYOJapan
Tokyo
$910
usually $1,730
−47%
Most monthly lows $1,262–$1,730. Cheaper than every other month on record (3).
GreatNonstop · 8.5h
BOS to ISTTürkiye
Istanbul
$518
usually $800
−35%
Most monthly lows $760–$892. Cheaper than every other month on record (8).
Rare1 stop · 19h
MUC to SAOGermany
Munich
$940
usually $1,575
−40%
Most monthly lows $981–$1,575. Cheaper than every other month on record (3).
Great1 stop · 13h
DUB to SAOIreland
Dublin
$718
usually $1,020
−30%
Most monthly lows $804–$1,175. Cheaper than every other month on record (5).
Good1 stop · 11h
MIA to SAOUnited States
Miami
$560
usually $755
−26%
Most monthly lows $594–$755. Cheaper than every other month on record (3).
