Route guide

Seoul to Istanbul (ICN-IST): Nonstop Upgrade & Award Space

Turkish Airlines, Korean Air, and Asiana Airlines fly nonstop between Seoul (ICN) and Istanbul (IST), roughly 19 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every ICN to IST departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

See ICN to IST on the interactive map Get started free
19
Nonstop flights a week
4,931 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every ICN to IST 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 Seoul to Istanbul 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 ICN to IST 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 ICN to IST on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seoul to Istanbul nonstop

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

  • Turkish Airlines
  • Korean Air
  • Asiana Airlines
See ICN to IST on the interactive map →

Frequently asked questions about ICN to IST

How far is Istanbul from Seoul?
ICN to IST covers about 4,931 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from ICN to IST?
Turkish Airlines, Korean Air, and Asiana Airlines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all three of them.
How many flights a week are there from ICN to IST?
About 19 nonstop flights a week run between Seoul and Istanbul in the current schedule, operated by Turkish Airlines, Korean Air, and 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 ICN to IST?
Open the ICN to IST calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Seoul to Istanbul route, and 2LNR will notify you when space opens. It's free to start.

Never miss ICN to IST upgrade or award space

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

Get started free