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 21 times a week. Long-haul cabins on a corridor this busy are large but never idle: premium cabin inventory reshuffles around every schedule change, and the best dates go first. 2LNR tracks award seats on Turkish Airlines across every ICN to IST date, so you can see whether a seat exists before you move points.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

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21
Nonstop flights a week
4,931 mi
Nonstop distance
Free
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Seoul to Istanbul flight schedule

Scheduled nonstop departures for ICN to IST, last checked against our schedule feed on September 6, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Seoul (ICN) to Istanbul (IST)
Date Flight Airline Departs ICN Arrives IST Duration Aircraft
TK 91Turkish Airlines23:2005:0011h 40m77W
TK 21Turkish Airlines10:1515:4511h 30m77W
OZ 551Asiana Airlines10:2516:1011h 45m77L
KE 955Korean Air13:4019:4012h789
TK 91Turkish Airlines23:2005:0011h 40m77W
OZ 551Asiana Airlines10:2516:1011h 45m77L
TK 91Turkish Airlines23:2005:0011h 40m77W
TK 21Turkish Airlines10:1515:4511h 30m77W
OZ 551Asiana Airlines10:2516:1011h 45m77L
KE 955Korean Air13:4019:4012h789
TK 91Turkish Airlines23:2005:0011h 40m77W
TK 21Turkish Airlines10:1515:4511h 30m77W
OZ 551Asiana Airlines10:2516:1011h 45m77L
KE 955Korean Air13:4019:4012h789
TK 91Turkish Airlines23:2005:0011h 40m77W
KE 955Korean Air13:4019:4012h789
TK 91Turkish Airlines23:2005:0011h 40m77W
TK 21Turkish Airlines10:1515:4511h 30m77W
KE 955Korean Air13:4019:4012h789
TK 91Turkish Airlines23:2005:0011h 40m77W

Showing all 20 scheduled ICN to IST departures across the next 7 days with service. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline has not filed that value in the schedule data we hold. Aircraft are IATA equipment codes as filed, and can change up to departure.

See every ICN to IST date on the interactive map

Award seats on ICN to IST departures

2LNR tracks award seats on Turkish Airlines, date by date. Open the calendar for Seoul to Istanbul to see whether a seat exists before you move points, the next 14 days free on every product and the full horizon on Pro.

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.

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; the schedule table on this page lists each scheduled departure with its own times.
Which airlines fly nonstop from ICN to IST?
Turkish Airlines, Korean Air, and Asiana Airlines fly the route nonstop. 2LNR tracks award seats on Turkish Airlines.
How many flights a week are there from ICN to IST?
About 21 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, and the schedule table on this page shows what is scheduled next.
What time do flights from ICN to IST depart?
Scheduled ICN to IST nonstops in the next 7 days with service leave between 10:15 and 23:20, local time at Seoul. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
How do I check upgrade or award availability on ICN to IST?
Open the ICN to IST route on the interactive map or the matrix to see award seats by date on Turkish Airlines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

Never miss ICN to IST upgrade or award space

See what is open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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