Route brief · SIN → OPO
Singapore → Porto
$698
round-trip · too little price history on this route to compare
Sep 20 – Oct 5 · 15 nights
Gulf Air2 stops
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.
Best time to be in Porto: May–Jun · Sep–Oct. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes 2 stops and takes about 17 hours outbound, on a 15-night trip — ticketed under Gulf Air, which on a connecting fare need not operate every leg. At $698 for 11,762 km each way, that works out to about $30 per 1,000 km flown. That is below the $40 typical of ultra-long-haul fares here. Of the 9 departure cities we track at a similar distance from Porto, this is the cheapest right now — 12% under the next one, Kuala Lumpur. That puts it in the cheaper half of the 23 routes of similar length we watch out of Singapore, where the middle fare is $764. 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.
The one day we hold a cached fare for
Tap a date → live search
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.
Route facts
- Airports
- Changi (SIN) ↔ Francisco Sá Carneiro (OPO)
- Flight time
- ~17 hours outbound
- Distance
- ~11,762 km each way
- Airlines on the board
- Gulf Air
- Itineraries
- Connections on current fares
- Best months to visit
- May–Jun · Sep–Oct
SIN → OPO, answered.
How far in advance should I book SIN → 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We do not publish a number for this, because we cannot measure it yet.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. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from Singapore to Porto?
The current cheapest fares involve a connection, ticketed under Gulf Air. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on August 20). 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 Sep 20 – Oct 5 · 15 nights.
Browse hotels ↗
Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next SIN → OPO drop reaches you as soon as we find it.
Follow SIN → OPO