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Chicago → Seoul flights

Chicago to Seoul fares median $459 over 30 days, ranging $286–$608 — watch for dips into the $400s and book when you see them.

ORD–Seoul: median $459, but bottom quartile dips near $408

Key takeaways

Median fare of $459 across 30 daily snapshots — a reasonable baseline for budgeting this route
Wide 113% spread between low ($286) and high ($608) shows real volatility, not a stable fare floor
Bottom quartile sits at $408 — fares at or below this level represent the better end of what's actually available
Top quartile reaches $494, meaning a quarter of observed fares ran noticeably above the median
With only 30 samples, this is a decent snapshot but not a long-term seasonal pattern — treat it as a current-conditions read

30-day price trend

ORD → ICN · cheapest cached fare per day · last 30 days · ↑ 20%

$286 low$608 high

See full numbers and stats on the ORD → ICN price history page.

The full picture

The $286–$608 range on Chicago to Seoul is unusually wide — a 113% spread from low to high — which tells us this route doesn't have a tight, predictable fare floor right now. That volatility cuts both ways: patient searchers have a real shot at fares well under the median, but there's also meaningful downside risk if you wait and the market moves against you. The bottom quartile marker of $408 is a useful target — fares at or below that level are genuinely in the better tier of what's been observed, not just noise.

We don't have enough resolution in this data to say when in the booking horizon (e.g., 2 weeks out vs. 2 months out) prices actually soften — the snapshots capture a 30-day window of cached fares, not a full booking-curve study. What we can say is that given the spread, checking prices repeatedly over a few weeks is more likely to pay off than committing to the first fare you see, especially since the gap between p25 ($408) and p75 ($494) is nearly $90 — real money that a bit of patience could capture.

No dominant carrier was visible in this data, so we can't speak to airline-specific patterns, seasonal alliance pricing, or whether nonstop vs. connecting itineraries are driving the swings — Chicago-Seoul routes typically involve a mix of both, which alone could explain a good chunk of the spread. The honest caveat: 30 days of snapshots is a reasonable current-conditions read, but it's not a multi-season history, so treat these numbers as a snapshot of recent market behavior rather than a guarantee of what you'll see next month.

Ready to look at fares?

Search ORD → ICN on Aviasales →See the price history →

Related travel pages

Why we regenerated this article: Price spread widened by 40 points. 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 Sep 26, 2026. Fares shift continuously — confirm at booking.