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Dallas → Seoul flights

DFW to Seoul fares show a $445 median across 27 days of fares; the bottom quartile sits at $442, so near-floor pricing is attainable with some monitoring.

DFW–Seoul fares cluster near $445 — book near the low end

Key takeaways

Median fare is $445, with the bottom quartile (p25) barely below it at $442 — meaning a large share of days price near the floor.
Observed range runs from $442 to $611, a 38% spread, so there's real upside risk if you wait too long or search on a bad day.
The top quartile (p75) starts at $550, over $100 above the median — avoiding that upper band is the main savings lever here.
With the median sitting just $3 above the lowest fare seen, there's little evidence of deep below-median outliers to chase.
Sample size is 27 daily snapshots — solid enough to trust the median and spread, though it's one route-month, not a full seasonal picture.

30-day price trend

DFW → ICN · cheapest cached fare per day · last 28 days · ↓ 12%

$442 low$611 high

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

The full picture

The data shows a fairly tight floor for DFW–Seoul: the median fare ($445) is almost identical to the lowest fare observed ($442), and the 25th percentile matches that low almost exactly. This suggests that on most days, fares hover near their best achievable level rather than spiking unpredictably downward — the real variability is on the upside. The 38% spread between low and high, driven by a top quartile that starts at $550 and tops out at $611, tells us the risk in this route isn't missing a rare deal, it's accidentally booking during a higher-priced stretch.

We don't have booking-window data (days-until-departure) in this dataset, only a 27-day rolling sample of cached fares, so we can't responsibly claim fares soften at a specific point in the booking calendar. What we can say is that because the median and p25 are so close together, a traveler checking fares on a handful of different days is fairly likely to land near $445 rather than needing to time things precisely — the main risk is the tail above $550, which seems to represent a smaller subset of higher-fare days rather than the norm.

No single carrier's pricing pattern is distinguishable from this data — it reflects cached cheapest fares across the route, not a breakdown by airline, so we can't speak to day-of-week or carrier-specific behavior. The honest takeaway: with a 38% spread, this isn't a low-volatility route, but the clustering near the floor is a good sign for travelers who check prices across a few different days rather than booking on the first search. The caveat is that 27 days of snapshots is a single month-long window — it tells us about recent pricing behavior, not guaranteed future patterns across seasons.

Ready to look at fares?

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

Related travel pages

Why we regenerated this article: Median fare ↓ 16% ($531 → $445). 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 17, 2026. Fares shift continuously — confirm at booking.