Route brief · HKG → SEL
Hong Kong → Seoul
$174
−17% vs typical
seasonal median $210 · difference $36
Sep 9 – Sep 17 · 8 nights
T'way AirNonstop
- Usual monthly lows
- $199–$267
- Board rank
- Stronger than 45%
- Route sample
- 9 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefSELSeoulPalaces wedged between skyscrapers, barbecue smoke at midnight, cafés that outnumber people.Best windowApr–May · Sep–OctAirportsIncheon (ICN) · Gimpo (GMP)All routes into SeoulWhen this route gets cheap.
Cached-fare history: across 9 months, Sep is the cheapest for HKG → SEL. Best time to be there: Apr–May · Sep–Oct.
Fares bottom out in September around $174 and peak in July near $301 — a $127 spread across the 9 months we track. The cheapest itinerary we are tracking flies T'way Air nonstop and takes about 4 hours outbound, on a 8-night trip. At $174 for 2,092 km each way, that works out to about $42 per 1,000 km flown. That is about the $41 typical of short-haul fares here. It is also the cheapest of the 7 routes of similar length we watch out of Hong Kong.
Cheapest day in the next 3 months: Sep 9 · $174 (19% below median)
Tap any day → live search
The median cached fare across this calendar is 4% higher than when tracking began on Aug 8 — $207 then versus $215 now, across 6 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 $174, on Sep 9.
September 2026
October 2026
Cheapest in Sep · around $174
17% below the $210 typical fare
Cheapest round-trip fare found per month · Hong Kong → Seoul · cached-price history
Route facts
- Airports
- Hong Kong (HKG) ↔ Incheon (ICN) · Gimpo (GMP)
- Flight time
- ~4 hours outbound
- Distance
- ~2,092 km each way
- Typical price
- $210 round-trip (seasonal median)
- Airlines on the board
- T'way Air
- Itineraries
- Nonstop available
- Best months to visit
- Apr–May · Sep–Oct
HKG → SEL, answered.
Is $174 a good price for Hong Kong to Seoul?
Only slightly. The seasonal median is around $210 round-trip and this fare is 17% under it, about $36. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from Hong Kong to Seoul?
Across 9 months of cached-fare history, Sep 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.
How far in advance should I book HKG → Seoul?
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 9 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 Hong Kong to Seoul?
Yes — the current board includes nonstop fares (T'way Air). The outbound leg runs around 4 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 Seoul?
Lock the flight first — then compare stays for Sep 9 – Sep 17 · 8 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next HKG → SEL drop reaches you as soon as we find it.
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