Istanbul to Seoul (IST–ICN) — Airlines, Schedules & Connections

IST Airport Page →
4,924 mi airlines 21/wk
On-time Some delays Frequent delays
Flight Schedule 8 flights Verified 3h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
TK90
TK Turkish
77W
2:15 AM
+03
6:20 PM
KST
10h 5m
M T W T F S S
Prices
OZ552
OZ Asiana
77L
5:20 PM
+03
9:35 AM+1
KST
10h 15m
M T W T F S S
Prices
TK20
TK Turkish
77W
6:25 PM
+03
9:05 AM+1
KST
8h 40m
M T W T F S S
Prices
KE956
KE Korean
781
9:45 PM
+03
1:55 PM+1
KST
10h 10m
M T W T F S S
Prices
TK91
TK Turkish
77W
12:10 AM
KST T1
5:55 AM
+03
11h 45m
M T W T F S S
Prices
OZ551
OZ Asiana
77L
9:35 AM
KST T2
3:45 PM
+03
12h 10m
M T W T F S S
Prices
TK21
TK Turkish
77W
10:45 AM
KST TT1
4:40 PM
+03
11h 55m
M T W T F S S
Prices
KE955
KE Korean
781
1:55 PM
KST T2
8:05 PM
+03
12h 10m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Istanbul to Seoul
3 carriers, 21 flights/week nonstop.
3 Airlines 21 Flights/wk 4,924 mi 8h 40m nonstop +6h ahead 57 1-stop hubs

IST–ICN is served by 3 airlines with nonstop service. Turkish Airlines, Korean Air and Asiana Airlines lead the route. The flight covers 4,924 miles in approximately 8h 40m. Beyond nonstop, 57 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop IST–ICN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
TK Turkish Airlines 11 77W 8h40-10h05 Star Alliance
KE Korean Air 5 781 10h10 SkyTeam
OZ Asiana Airlines 5 77L 10h15 Star Alliance
Aircraft on this route
77L Boeing 777-200LR – OZ
77W Boeing 777-300ER – TK
781 Boeing 787-10 Dreamliner – KE
Alliance coverage
Star Alliance: OZ + TK (16 flights/wk, 76%)
SkyTeam: KE (5 flights/wk, 24%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, IST to ICN direction.
Mon
2
flights
Tue
3
flights
Wed
3
flights
Thu
3
flights
Fri
4
flights
Sat
3
flights
Sun
3
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
21
Outbound / wk
21
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IST to ICN.
1-STOP
One-Stop Connections
57
Hubs
~11h
Fastest
~44h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,835
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.

Travel Essentials

Practical planning for this route.
Time Difference
+6h
Seoul is 6 hours ahead of Istanbul.
IST: +03 · ICN: KST

When it's 6:00 PM in Istanbul, it's 12:00 AM (next day) in Seoul.
Distance & Flight Time
4,924 mi / 7,924 km
Nonstop flight time is approximately 8h 40m to 10h 15m.
Visa & Entry

Turkish passport holders enter South Korea visa-free for up to 30 days. No advance application is needed, and the K-ETA requirement has been suspended for Turkish nationals through December 31, 2025, with extensions possible. Passport must be valid for at least 6 months beyond the date of entry. A return or onward ticket may be requested at immigration.

At Incheon International Airport (ICN), immigration takes fingerprints and a photo. The 30-day visa-free stay covers tourism and short business visits. For longer stays or work purposes, apply for the appropriate visa at the Korean Embassy in Ankara before departure. Turkey and South Korea have strong bilateral ties reinforced by Korean War history, and Korean immigration processes Turkish travelers efficiently.

Turkish Airlines operates direct flights from Istanbul (IST) to Incheon in about 10 hours 30 minutes. Korean Air also flies the route. South Korea uses the Korean won (KRW), trading at roughly 40 KRW per TRY 1. T-money cards work on all Seoul metro lines, buses, and taxis at KRW 1,400 per metro ride. Card payments work everywhere in South Korea. ATMs at airports and convenience stores (CU, GS25) accept international cards. Seoul metro signage is in Korean, English, Chinese, and Japanese.

Getting to IST

Istanbul Metro M11 Gayrettepe–İstanbul Havalimanı line connects the airport to the broader metro network; from Gayrettepe (Mecidiyeköy/Levent area) the journey is about 35 minutes (₺60–70 with Istanbulkart). The line runs roughly 5am to midnight.Havaist express buses serve Taksim, Kadıköy, and other major hubs (₺50–80, 45–90 minutes depending on traffic). Taxis use a meter; expect ₺400–600 from Taksim or Sultanahmet. The airport is 35km northwest of the city; traffic on the O-7 motorway can be severe during peak hours.

Getting from ICN

AREX Direct Train to Seoul Station (43 min, ₩11,000) is a reserved-seat express. The All-Stop train serves Hongik University, City Hall, and other inner-city stations (66 min, ₩4,550). T2 passengers board at a dedicated T2 stop before T1; don't exit early. City Check-in at Seoul Station allows bag drop and boarding pass printing before the train for select airlines.Limousine buses serve major hotel zones and neighborhoods (₩16,000–18,000). Taxis from ICN to central Seoul cost ₩65,000–90,000; use only official orange (general) or black (deluxe) cabs from the designated stands. KakaoTaxi (ride-hail) operates from the airport.

Seoul Climate

Humid continental climate. Winters are cold and dry (−8 to 2°C, December–February) with occasional snow and wind chill. ICN handles snow well, though heavy falls delay operations. Summer monsoon (Changma) runs late June through July with heavy continuous rain. Typhoons can affect operations August–September with short notice.

Spring brings Yellow Dust (hwangsa) from China. Fine particulate storms reduce visibility and occasionally disrupt flights in March–April. Autumn (October–November) is the best flying season: clear skies, low humidity, 8–18°C. Pack layers for spring and fall. Summer is hot and humid (25–32°C).

IST–ICN Quick Facts

Key statistics for the Istanbul to Seoul route.
Route details
Distance4,924 mi / 7,924 km
Flight time8h 40m to 10h 15m
Time difference+6 hours
Airlines (nonstop)3
Weekly flights21 out / 21 return
1-stop connections57 hubs
Origin: IST
IATA / ICAOIST / LTFM
TimezoneEurope/Istanbul
Passengers/yr80.1M
Elevation325 ft / 99 m
Destination: ICN
IATA / ICAOICN / RKSI
TimezoneAsia/Seoul
Passengers/yr71.2M
Elevation23 ft / 7 m

Frequently Asked Questions

Common questions about IST to ICN flights.
Nonstop flights from İstanbul Airport to Incheon International Airport take approximately 8h 40m to 10h 15m. The route covers 4,924 miles.
3 airlines operate nonstop service: Korean Air, Asiana Airlines and Turkish Airlines.
There are approximately 21 nonstop flights per week from IST to ICN. The return direction has about 21 weekly flights.
Yes, 1-stop connections are available through GYD, CIT, CAI, DAC, TFU, OSL, TAS, VIE, NRT, ALA, MUC, PEK, CAN, BUD, MNL, LHR, DOH, FCO, PVG, PRG, AMS, HND, XIY, DPS, AUH, FRA, HKG, MAD, BCN, TPE, HAN, DXB, MXP, EWR, SGN, CDG, CPH, BKK, LIS, NQZ, HEL, KUL, DEL, SIN, ORD, LAX, ADD, SFO, JFK, SEA, ATL, BOS, YYZ, IAD, DTW, YVR and DFW. These options provide additional schedule flexibility.
Seoul is 6 hours ahead of Istanbul.
Yes, return flights from ICN to IST are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from IST to ICN

İstanbul Airport (IST) and Incheon International Airport (ICN) are connected by nonstop service from Korean Air, Asiana Airlines and Turkish Airlines. With 21 weekly departures, this is a well served route.

IST to ICN Flight Duration and Schedule

Nonstop flight time from IST to ICN ranges from 8 hours 40 minutes to 10 hours 15 minutes. The route covers a distance of 4,924 miles (7,924 km). There are approximately 21 weekly flights outbound and 21 return, totaling 42 flights per week in both directions.

Connecting Options and Alternatives

57 one-stop connections are available, with the fastest taking approximately 11 hours via GYD. Two-stop connections are also available via intermediate hubs.