TK21 Turkish Airlines - Flight Status

Below, you can find details about Turkish Airlines flight TK21, which currently operates between the airports of Seoul - Seoul Incheon International Airport (Airport Code ICN) and Istanbul - Istanbul Airport (Airport Code IST).
This flight data pertains specifically to the flight's details for Tuesday, April 28, 2026.

Table of contents:
Flight Status Codeshare Flights Additional Information Alternative Flights Punctuality and delays Last Past Flights TK21

TK21 On Time performance:

n/a

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

TK21 Turkish Airlines from Seoul

This flight is not scheduled for April 28, 2026.

Airline information

Turkish Airlines

Departure

Seoul (ICN)

April 25, 2026

Seoul Incheon International Airport

Arrival

Istanbul (IST)

April 25, 2026

Istanbul Airport

Disclaimer

The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.istanbul-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Codeshare Flights

This flight is shared with other airlines, this means that these other flights are the same:

- OZ6933 - Asiana Airlines

Additional Information

Which is the frequency of flight TK21?
The flight TK21 is scheduled to flight on Monday, Wednesday, Friday, Saturday on a weekly basis.

Which is the distance of flight TK21?
The distance between the two airports is 7927 kilometers.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Seoul: 2026-04-28 14:19:19
Current Time in Istanbul: 2026-04-28 08:19:19

Alternative Flights

The following airlines serves the same route between Seoul and Istanbul:

Korean Air
- Flight Number: KE955.

Asiana Airlines
- Flight Number: OZ551.

Turkish Airlines
- Flight Number: TK91.

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights TK21

Date

Departure

Arrival

Duration

Aircraft

Status

Monday
27 April

12:19
Seoul (ICN)

17:50
Istanbul (IST)

11h 31min

Boeing 777-300

Landed - Delayed

Saturday
25 April

10:14
Seoul (ICN)

15:55
Istanbul (IST)

11h 41min

Boeing 777-300

Landed - On-time

Friday
24 April

10:05
Seoul (ICN)

15:25
Istanbul (IST)

11h 20min

Boeing 777-300

Landed - On-time

Wednesday
22 April

13:06
Seoul (ICN)

18:35
Istanbul (IST)

11h 29min

Boeing 777-300

Landed - Delayed

Monday
20 April

12:38
Seoul (ICN)

18:10
Istanbul (IST)

11h 32min

Boeing 777-300

Landed - Delayed

Saturday
18 April

10:29
Seoul (ICN)

15:55
Istanbul (IST)

11h 26min

Boeing 777-300

Landed - On-time

Friday
17 April

10:41
Seoul (ICN)

16:05
Istanbul (IST)

11h 24min

Boeing 777-300

Landed - On-time

Wednesday
15 April

10:42
Seoul (ICN)

16:05
Istanbul (IST)

11h 23min

Boeing 777-300

Landed - On-time

Monday
13 April

11:50
Seoul (ICN)

17:10
Istanbul (IST)

11h 20min

Boeing 777-300

Landed - Delayed

Saturday
11 April

11:23
Seoul (ICN)

16:40
Istanbul (IST)

11h 17min

Boeing 777-300

Landed - Delayed