Singapore AirlinesSQ
Flights SQ391 13:10 Mo We Fr Su
live
Direct flights from Istanbul (IST) to Singapore (SIN): 11 nonstop departures observed each week across 2 airlines. 80% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 3 minutes early. No cancellations were recorded across the 5 tracked flights. The nonstop covers 8,680 km, an estimated 11 hours 38 minutes in the air. Measured by Pro Flight Search from live flight boards at Istanbul and Singapore. Updated 26 October 2026 at 19:07 UTC.
Today, IST → SIN
Mon 26 Oct · local times- 01:50 TK54Turkish Airlines Left 01:50 Landed 17:32 −8
- 13:15 SQ391Singapore Airlines Left 13:15 SIN est. 04:36In the air · sched 04:45
- 17:15 TK208Turkish Airlines Left 17:15 Landed 10:08 +8
- · TK168Turkish Airlines Departed Landed 08:42 −3
Checked IST board 21:19 · SIN board 03:07
IST
Istanbul
smooth · +0
SIN
Singapore
smooth · +0
8,680 km · ~11h 38m est.
Runs reliable · 2 airlines · 11x weekly · nonstop
80% on time
of the last 5 operated IST → SIN flights arrived within 15 minutes
Median arrival delay is −3 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−3 minacross the last 5 operated legs
Flight time~11h 38mestimated from route distance
Weekly departures11x2 direct airlines on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Singapore AirlinesTurkish Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomes10-26TK168arrived−3
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at IST and SIN: 23% odds of a 15+ minute delay and around +-1 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Istanbul to Singapore route actually runs
Pro Flight Search records official board updates for nonstop IST to SIN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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 — Istanbul (IST) to Singapore (SIN) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IST-SIN
IST to SIN questions
Is IST–SIN running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 86/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IST–SIN?
Operators schedule morning departures around 01:55 and evening departures around 17:00 from IST. Earlier flights typically land before destination-airport delays accumulate later in the day; check the SIN delay card to confirm conditions when you'd arrive.
How long is the flight from IST to SIN?
Great-circle distance is 8,680 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 643–774 min gate-to-gate on this route.
How often does IST–SIN fly?
2 carriers operate this route, around 22 flights a week between them. Compare carrier days and times in the airline list above.
.