Route brief · SAO → OPO
São Paulo → Porto
$784
−19% vs typical
seasonal median $970 · difference $186
May 11 '27 – Jun 11 '27 · 31 nights
Azul AirlinesNonstop
- Usual monthly lows
- $864–$1,311
- Board rank
- Stronger than 52%
- Route sample
- 5 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefOPOPortoGranite, port wine and a river gorge through the middle — cheaper and steeper than Lisbon.Best windowMay–Jun · Sep–OctAirportsFrancisco Sá Carneiro (OPO)All routes into PortoWhen this route gets cheap.
Cached-fare history: across 5 months, May is the cheapest for SAO → OPO. Best time to be there: May–Jun · Sep–Oct.
Fares bottom out in May around $784 and peak in September near $1,393 — a $609 spread across the 5 months we track. The cheapest itinerary we are tracking flies Azul Airlines nonstop and takes about 10 hours outbound, on a 31-night trip. At $784 for 8,194 km each way, that works out to about $48 per 1,000 km flown. That is about the $44 typical of long-haul fares here. Across the 10 departure cities we track at a similar distance from Porto, this fare ranks 6th — 1.9× the $420 we hold from Chicago. That puts it in the cheaper half of the 36 routes of similar length we watch out of São Paulo, where the middle fare is $943.
The 7 days we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 5% lower than when tracking began on Aug 8 — $987 then versus $937 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 $805, on Nov 30.
- Sun, Sep 6$1,483
- Sat, Sep 12$1,531
- Tue, Oct 6$915
- Thu, Oct 8$934
- Thu, Oct 15$939
- Sun, Nov 15$898
- Mon, Nov 30$830
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.
Cheapest in May · around $784
19% below the $970 typical fare
Cheapest round-trip fare found per month · São Paulo → Porto · cached-price history
Route facts
- Airports
- Guarulhos (GRU) · Congonhas (CGH) · Viracopos (VCP) ↔ Francisco Sá Carneiro (OPO)
- Flight time
- ~10 hours outbound
- Distance
- ~8,194 km each way
- Typical price
- $970 round-trip (seasonal median)
- Airlines on the board
- Azul Airlines
- Itineraries
- Nonstop available
- Best months to visit
- May–Jun · Sep–Oct
SAO → OPO, answered.
Is $784 a good price for São Paulo to Porto?
Only slightly. The seasonal median is around $970 round-trip and this fare is 19% under it, about $186. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from São Paulo to Porto?
Across 5 months of cached-fare history, May comes out cheapest on this route. The best months to actually be in Porto are May–Jun · Sep–Oct — when those overlap, that's your window.
How far in advance should I book SAO → Porto?
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 5 months of cached fares, May 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 Porto?
Yes — the current board includes nonstop fares (Azul Airlines). The outbound leg runs around 10 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 Porto?
Lock the flight first — then compare stays for May 11 '27 – Jun 11 '27 · 31 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next SAO → OPO drop reaches you as soon as we find it.
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