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JFK to Seoul fares show a $394 median over the past 30 days; watch for occasional dips toward $241 within a typical booking window.
Written from this route's 30-day price index (30 daily samples). Article last regenerated Oct 31, 2026.
See full numbers and stats on the JFK → ICN price history page.
Fares between JFK and Seoul over the last 30 days ranged from $241 to $426, with a median of $394. That's a 77% spread, which is wide — this isn't a route where you can expect price stability regardless of when you check. However, the middle half of observed fares (p25 to p75) clustered between $308 and $396, suggesting that while the extremes exist, a large chunk of day-to-day pricing is more predictable than the full range implies.
The data doesn't let us pinpoint a specific booking lead time that reliably softens prices — we only have a 30-day snapshot of cached fares, not a longitudinal view of how prices move as departure approaches. What we can say is that the $241 low is well below the p25 mark of $308, meaning it was likely a one-off or short-lived fare rather than something to count on. Travelers budgeting for this route should anchor expectations around the $308–$396 range and treat anything near $241 as a pleasant surprise rather than a target.
We don't have visibility into a dominant carrier or day-of-week patterns in this dataset, so we can't make claims about specific airlines or departure days being cheaper — and we won't invent that detail. The honest takeaway: expect to pay somewhere in the $300s for JFK–Seoul, budget flexibility for the wide spread, and don't bank on replicating the $241 low. The caveat worth repeating is that this is a 30-day cross-section, not a forward-looking forecast — it tells you what fares have looked like recently, not what they'll do next.
Why we regenerated this article: Median fare ↓ 10% ($439 → $394). We only rewrite when the underlying price index actually moves — stable weeks keep the previous take.
AI-authored from this route's 30-day price index. Article last regenerated Oct 31, 2026. Fares shift continuously — confirm at booking.