TK421 Turkish Airlines - Flight Status

Which is the frequency of flight TK421?
The flight TK421 is scheduled to flight on daily basis.

Which is the distance of flight TK421?
The distance between the two airports is 1713 kilometers.

Are the departure airport and arrival airport at the same Time Zone?
Yes, both airports are in the same timezone.

The following airline serve the same route between Istanbul and Moscow:
Turkish Airlines - Flight Number: TK407.

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: We have gathered available data from last twelve closed months, spanning from February 02, 2025 to March 22, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.