Great1 stop · 14h
SEL to ISTTürkiye
Istanbul
$390
usually $640
−39%
Most monthly lows $515–$679. Cheaper than every other month on record (8).
Flights · SEL → LIS
Seoul to Lisbon
Best fare, round trip
$639
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Fri 18 Dec
- Return
- Sun 3 Jan
- Stay
- 16 nights
- Flight
- 2 stops · 18h
- Airline
China Eastern
Cached fare — the booking search re-prices live before you pay.
PortugalLisbonTiled hills, custard tarts, Atlantic light — TAP’s hub wars keep this Europe’s cheapest gateway.Best windowMar–Jun · Sep–OctAirportsHumberto Delgado (LIS)Every route into LisbonFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes 2 stops and takes about 18 hours outbound, on a 16-night trip — ticketed under China Eastern, which on a connecting fare need not operate every leg. At $639 for 10,418 km each way, that works out to about $31 per 1,000 km flown. That is below the $44 per 1,000 km typical of long-haul fares here. Across the 12 departure cities we track at a similar distance from Lisbon, this fare ranks 2nd — 35% above the $474 from Los Angeles. That puts it in the cheaper half of the 45 routes of similar length we watch out of Seoul, where the middle fare is $763. 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 Lisbon: Mar–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 4% lower than when tracking began on 15 Aug — $770 then versus $738 now, across 12 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 $638, on 19 Dec.
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 17 Oct 2026
We are still collecting this route's months — 2 months of cached prices so far, too few to chart.
Route facts
- Airports
- Incheon (ICN) · Gimpo (GMP) ↔ Humberto Delgado (LIS)
- Flight time
- ≈18 hours outbound
- Distance
- ≈10,418 km each way
- Airlines on the board
- China Eastern
- Itineraries
- Connections on current fares
- Best months to visit
- Mar–Jun · Sep–Oct
Good to know
SEL → LIS, answered.
How far in advance should I book SEL → Lisbon?
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 Seoul to Lisbon?
The current cheapest fares involve a connection, ticketed under China Eastern. 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 Lisbon?
Lock the flight first — then compare stays for 18 Dec – 3 Jan '27 · 16 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SEL → LIS drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
Related routes on the board.
Great1 stop · 14h
SEL to FRAGermany
Frankfurt
$491
usually $760
−35%
Most monthly lows $660–$762. Cheaper than every other month on record (3).
GreatNonstop · 8.5h
SEL to HNLUnited States
Honolulu
$587
usually $890
−34%
Most monthly lows $617–$949. Cheaper than every other month on record (7).
RareNonstop · 3h
DUB to LISIreland
Dublin
$80
usually $155
−48%
Most monthly lows $81–$167. Cheaper than every other month on record (5).
RareNonstop · 3h
BRU to LISBelgium
Brussels
$94
usually $180
−48%
Most monthly lows $135–$207. Cheaper than every other month on record (6).
RareNonstop · 3h
MIL to LISItaly
Milan
$47
usually $85
−45%
Most monthly lows $67–$109. Cheaper than every other month on record (7).