Rare1 stop · 16.5h
BKK to BCNSpain
Barcelona
$516
usually $870
−41%
Most monthly lows $697–$881. Cheaper than every other month on record (5).
Flights · BKK → OPO
Bangkok to Porto
Best fare, round trip
$639
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Sun 15 Nov
- Return
- Thu 19 Nov
- Stay
- 4 nights
- Flight
- 2 stops · 18h
- Airline
Norse Atlantic
Cached fare — the booking search re-prices live before you pay.
PortugalPortoGranite, port wine and a river gorge through the middle — cheaper and steeper than Lisbon.Best windowMay–Jun · Sep–OctAirportsFrancisco Sá Carneiro (OPO)Every route into PortoFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes 2 stops and takes about 18 hours outbound, on a 4-night trip — ticketed under Norse Atlantic, which on a connecting fare need not operate every leg. At $639 for 10,538 km each way, that works out to about $30 per 1,000 km flown. That is well under the $44 per 1,000 km that long-haul fares on this board typically run. Of the 9 departure cities we track at a similar distance from Porto, this is the cheapest right now — 8% under the next one, São Paulo. That puts it in the cheaper half of the 32 routes of similar length we watch out of Bangkok, where the middle fare is $696. We have 2 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. Fare history here is still too short to name a cheap season. The best time to be in Porto: May–Jun · Sep–Oct.
The 2 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 6% lower than when tracking began on 22 Aug — $818 then versus $768 now, across 10 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 $639, on 15 Nov.
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 — 2 months of cached prices so far, too few to chart.
Route facts
- Airports
- Suvarnabhumi (BKK) · Don Mueang (DMK) ↔ Francisco Sá Carneiro (OPO)
- Flight time
- ≈18 hours outbound
- Distance
- ≈10,538 km each way
- Airlines on the board
- Norse Atlantic
- Itineraries
- Connections on current fares
- Best months to visit
- May–Jun · Sep–Oct
Good to know
BKK → OPO, answered.
How far in advance should I book BKK → 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. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Bangkok to Porto?
The current cheapest fares involve a connection, ticketed under Norse Atlantic. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
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 Porto?
Lock the flight first — then compare stays for 15–19 Nov · 4 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next BKK → OPO drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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