Route guide

Iwanuma to Seoul (SDJ-ICN): Nonstop Upgrade & Award Space

Asiana Airlines flies the SDJ to ICN nonstop about 5 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every SDJ to ICN departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

Data current as of July 22, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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5
Nonstop flights a week
791 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every SDJ to ICN departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Iwanuma to Seoul to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SDJ to ICN departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SDJ to ICN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Iwanuma to Seoul nonstop

Carriers operating SDJ to ICN nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Asiana Airlines
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Frequently asked questions about SDJ to ICN

How far is Seoul from Iwanuma?
SDJ to ICN covers about 791 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SDJ to ICN?
Asiana Airlines is currently the only airline flying SDJ to ICN nonstop. 2LNR tracks confirmed upgrade and award space on every Asiana Airlines departure.
How many flights a week are there from SDJ to ICN?
About 5 nonstop flights a week run between Iwanuma and Seoul in the current schedule, operated by Asiana Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on SDJ to ICN?
Open the SDJ to ICN calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Iwanuma to Seoul route, and 2LNR will notify you when space opens. It's free to start.

Never miss SDJ to ICN upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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