TK401Turkish Airlines · IST → LED
live · 3m ago
Route confirmed Turkish Airlines

TK401 IstanbulIST · 08:00 St. PetersburgLED

TK401 by Turkish Airlines flies from Istanbul (IST) to St. Petersburg (LED) for the Tue, Oct 20 departure.

Right nowEn route to St. Petersburg · off blocks 08:00 · on schedule
En route

en route from IST to LED

En routeTK401 · position estimated
ISTIstanbulLEDSt. Petersburg
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 08:00.

Typical gate push+30 minmedian posted departure

Where the minutes go

last 7 operations · gate push → arrival
0+45+90+135 min
10-20
+0 gate
10-19
+120 gate
10-18
+135 gate
10-17
+25 gate
10-16
+40 gate
10-15
+30 gate
10-14
+0 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

0 cancelled · 7 operations tracked

The route today

live boards
ISTIstanbulOn-time likelyIST delay board →
LEDSt. PetersburgOn-time likelyLED delay board →
IST→LEDevery carrier, schedules and on-time historyRoute intelligence →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Istanbul to St. Petersburg flights today

same route · Turkish Airlines
TK405departs 01:10
TK3068departs 06:40
TK6891departs 11:00
TK399departs 19:30
TK403departs 20:30
TK479departs 21:45

If TK401 is cancelled, these are the other Turkish Airlines nonstop flights from Istanbul to St. Petersburg on the same day, with scheduled departure times in IST local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How TK401 actually runs

Pro Flight Search has tracked every published board update for TK401 across the IST and LED boards: schedule changes, gate pushes and actual clocks. Usually departs ~30 min late. Based on 7 confirmed departures · 2/7 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how TK401 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-20IST 08:00 (+0)LED
10-19IST 08:00 10:00 (+120)LED
10-18IST 08:00 10:15 (+135)LED
10-17IST 08:00 08:25 (+25)LED
10-16IST 08:00 08:40 (+40)LED
10-15IST 08:00 08:30 (+30)LED
10-14IST 08:00 (+0)LED

Board clocks recorded as IST and LED published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — TK401 Istanbul to St. Petersburg on-time performance, measured from the IST and LED airport boards.

Canonical URL
https://proflightsearch.com/flight/TK401
How we measure this →