
BRU to STOSweden
Stockholm
$41
usually $135
−70%
Most monthly lows $125–$136. Cheaper than every other month on record (3).
Display prices in
Flights · BRU → SEL
Best fare, round trip
$476
−41%
below its usual $800
you keep $324
Most of this route’s monthly lows fall between $664 and $814. The drop beats 89% of measured fares on the board, over 6 observed months.
Cached fare — the booking search re-prices live before you pay.
South KoreaSeoulPalaces wedged between skyscrapers, barbecue smoke at midnight, cafés that outnumber people.Best windowApr–May · Sep–OctAirportsIncheon (ICN) · Gimpo (GMP)Every route into SeoulFare seasonality
Fares bottom out in November around $451 and peak in May near $827, 83% dearer, across the 6 months we track. The cheapest itinerary we are tracking makes one stop and takes about 11.5 hours outbound, on a 6-night trip — ticketed under Air China, which on a connecting fare need not operate every leg. At $476 for 8,705 km each way, that works out to about $27 per 1,000 km flown. That is well under the $44 per 1,000 km that long-haul fares on this board typically run. Across the 27 departure cities we track at a similar distance from Seoul, this fare ranks 3rd — 4% above the $458 from Istanbul. That puts it in the cheaper half of the 36 routes of similar length we watch out of Brussels, where the middle fare is $719. The best time to be in Seoul: Apr–May · Sep–Oct.
Day-level prices for the next 4 months
Press a day to compare its fares
The median cached fare across this calendar is 28% higher than when tracking began on 8 Aug — $679 then versus $866 now, across 18 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 $451, on 29 Nov.
Cached day-level data for this route is sparse — 12 of 109 days priced, from 50 tracked fares. The days below are shown as found, with no cheapest-day or below-median call.
October 2026
November 2026
December 2026
January 2027
Cheapest in Nov, around $451
44% below the $800 typical fare
Cheapest round-trip fare found each month, Brussels to Seoul, from cached prices.
Route facts
Good to know
Yes — the seasonal median for this route is around $800 round-trip. At $476 you're 41% below that, which we rate rare for this route.
Across 6 months of cached-fare history, Nov comes out cheapest on this route. The best months to actually be in Seoul are Apr–May · Sep–Oct — when those overlap, that's your window.
We do not publish a number for this, because we cannot measure it yet.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 6 months of cached fares, Nov comes out lowest on this route. Our guide Why flight prices change covers what does move a fare.
The current cheapest fares involve a connection, ticketed under Air China. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
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 Seoul?
Lock the flight first — then compare stays for 29 Nov – 5 Dec · 6 nights.
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