Route brief · SEL → SIN
Seoul → Singapore
$225
−20% vs typical
seasonal median $280 · difference $55
Sep 17 – Sep 21 · 4 nights
T'way AirNonstop
- Usual monthly lows
- $262–$298
- Board rank
- Stronger than 55%
- Route sample
- 6 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefSINSingaporeA city that treats an airport as a national monument — and prices its stopover fares to tempt you.Best windowFeb–AprAirportsChangi (SIN)All routes into SingaporeWhen this route gets cheap.
Cached-fare history: across 6 months, Sep is the cheapest for SEL → SIN. Best time to be there: Feb–Apr.
Fares bottom out in September around $225 and peak in December near $354 — a $129 spread across the 6 months we track. The cheapest itinerary we are tracking flies T'way Air nonstop and takes about 6.5 hours outbound, on a 4-night trip. At $225 for 4,672 km each way, that works out to about $24 per 1,000 km flown. That is well under the $39 that medium-haul fares on this board typically run. Across the 5 departure cities we track at a similar distance from Singapore, this fare ranks 3rd — 1% above the $223 from Delhi. It is also the 3rd cheapest of the 9 routes of similar length we watch out of Seoul.
Cheapest day in the next 3 months: Sep 28 · $234 (15% below median)
Tap any day → live search
The median cached fare across this calendar is 14% higher than when tracking began on Aug 8 — $250 then versus $284 now, across 8 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 $190, on Sep 26.
Cheapest in Sep · around $225
20% below the $280 typical fare
Cheapest round-trip fare found per month · Seoul → Singapore · cached-price history
Route facts
- Airports
- Incheon (ICN) · Gimpo (GMP) ↔ Changi (SIN)
- Flight time
- ~6.5 hours outbound
- Distance
- ~4,672 km each way
- Typical price
- $280 round-trip (seasonal median)
- Airlines on the board
- T'way Air
- Itineraries
- Nonstop available
- Best months to visit
- Feb–Apr
SEL → SIN, answered.
Is $225 a good price for Seoul to Singapore?
Yes — the seasonal median for this route is around $280 round-trip. At $225 you're 20% below that, saving about $55, which we rate good for this route.
What is the cheapest month to fly from Seoul to Singapore?
Across 6 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Singapore are Feb–Apr — when those overlap, that's your window.
How far in advance should I book SEL → Singapore?
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, Sep comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Seoul to Singapore?
Yes — the current board includes nonstop fares (T'way Air). The outbound leg runs around 6.5 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 Singapore?
Lock the flight first — then compare stays for Sep 17 – Sep 21 · 4 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next SEL → SIN drop reaches you as soon as we find it.
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