Chicago → Seoul flights

Target $430–$621 on ORD–ICN — spread is wide, timing matters

Key takeaways

• Median fare is $621, based on 30 daily snapshots of the cheapest available cached fares on this route.
• Bottom-quartile fares sit at $430, meaning 25% of observed prices came in at or below that level — a realistic target for patient shoppers.
• The low was $421 and the high $874 — a spread of 108%, signaling this route is highly price-volatile and rewards active monitoring.
• The middle 50% of fares fell between $430 and $690, giving you a practical "fair price" band to benchmark any quote against.
• No dominant carrier pattern is identifiable from this dataset, so comparing across airlines — rather than defaulting to one — is especially important here.

30-day price trend

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

The full picture

Chicago O'Hare to Seoul Incheon is a competitive transpacific route, but the data tells a story of meaningful price swings rather than a stable, predictable fare environment. With a spread of 108% between the observed low ($421) and high ($874), where you land on that range depends heavily on when you look and how far out you book. The median of $621 is a useful anchor — if you're quoted significantly above that, there's a reasonable chance cheaper inventory exists or will open up. The bottom quartile threshold of $430 is the real target: fares in that range do appear in this dataset, but they represent the better end of what the market offers, not the norm.

On a route of this distance (roughly 13–14 hours nonstop), fares typically soften in two windows: well in advance (often 3–5 months out for international transpacific travel) and occasionally in close-in periods when carriers move unsold premium inventory or discount economy to fill planes. The $421 floor observed here likely reflects one of those periodic dips. Setting a price alert at or below $500 and checking back across multiple booking platforms gives you the best shot at catching similar softness without having to time the market perfectly.

Day-of-week departure patterns and carrier-specific behavior aren't distinguishable from this dataset, so it would be misleading to point you toward a specific airline or departure day as categorically cheaper. What the data does support is range-based discipline: treat anything below $500 as a strong buy, $621 as the median benchmark, and anything above $750 as a signal to wait if your travel dates are flexible. One honest caveat: 30 snapshots capture a snapshot in time and may not reflect seasonal demand shifts — summer and Korean holiday periods (Chuseok, Lunar New Year) can push fares well above the ranges shown here.

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