Turkish AirlinesTK92% on time
live
Direct flights from Washington (IAD) to Istanbul (IST): 7 nonstop departures observed each week across 1 airline. 92% of the last 13 operated flights arrived within 15 minutes of schedule. The median arrival is on schedule. No cancellations were recorded across the 13 tracked flights. The nonstop covers 8,388 km, an estimated 11 hours 15 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Istanbul. Updated 19 August 2026 at 05:52 UTC.
IAD
Washington
busy · +24
IST
Istanbul
smooth · +0
8,388 km · ~11h 15m est.
Runs reliable · 1 airline · 7x weekly · nonstop
92% on time
of the last 13 operated IAD → IST flights arrived within 15 minutes
Median arrival delay is +0 min. 0 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Search live fares for this route →Median arrival+0 minacross the last 13 operated legs
Flight time~11h 15mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 13
Current nonstop fares
IAD → IST · one way · economy · 1 adult
TodayChecking…Direct airline fares
TomorrowChecking…Direct airline fares
In one weekChecking…Direct airline fares
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Turkish 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 outcomes08-13TK9LCdeparted+0
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 IAD: 28% odds of a 15+ minute delay and around +2 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 Washington to Istanbul route actually runs
Pro Flight Search tracks every published board update for nonstop IAD to IST flights: 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. Fares link straight to the operating airline with no markups.
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 — Washington (IAD) to Istanbul (IST) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IAD-IST
IAD to IST questions
Is IAD–IST running on time right now?
Smooth skies ahead. The departure side at IAD is the weaker end, route health score 84/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from IAD to IST?
Great-circle distance is 8,388 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 622–749 min gate-to-gate on this route.
How often does IAD–IST fly?
Turkish Airlines runs the route with about 14 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at IAD and arrival-side delay at IST, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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