Flight Price History

Seattle to Seoul · 30-day trend

Median fare $403 · 30-day low $362. Snapshots updated daily (last: Jun 26, 2026).

SEA → ICN · cheapest cached fare per day · last 30 days · ↓ 35%

$362 low$621 high

Median fare

$403

Across 30 daily snapshots

30-day low

$362

Cheapest seen

30-day high

$621

Most expensive seen

Now vs typical

+0%

Typical pricing

What this means

Each point on the chart above is the cheapest cached round-trip fare from Seattle (SEA) to Seoul (ICN) on that snapshot day, sourced nightly from our travel-data partner Travelpayouts.

The median is the typical asking price for this route across a rolling 30-day window — half of recent snapshots were cheaper, half more expensive. The low is what your fare-floor target should be if your dates are flexible; the high tells you what to walk away from.

Ready to book?

Cached prices give you the baseline. For your exact dates, search live fares — Aviasales checks every major OTA in one query.

Search SEA → ICN flights →Live prices on Aviasales →

See our best-time-to-book guide for SEA → ICN →Target price, booking window, weekday pattern.

Related travel pages

Data: 30-day rolling window of cheapest cached round-trip fares from Travelpayouts, snapshotted nightly. Actual fares for your specific dates and travel class will vary — we link to live search above for current pricing. Index last updated Jun 26, 2026.