Direct flights from Istanbul (IST) to Houston (IAH): 10 nonstop departures observed each week across 1 airline. 100% of the last 7 tracked flights arrived within 15 minutes of schedule. The median arrival is 20 minutes early. No cancellations were recorded across the 8 tracked flights. The nonstop covers 10,232 km, an estimated 13 hours 37 minutes in the air. Measured by Pro Flight Search from live flight boards at Istanbul and Houston. Updated 6 November 2026 at 19:30 UTC.
Today, IST → IAH
Fri 6 Nov · local times- 14:50 TK33Turkish Airlines Left 14:50 IAH est. 18:38In the air · sched 19:05
Checked IST board 22:30 · IAH board 13:18
of the last 7 tracked IST → IAH flights arrived within 15 minutes
Median arrival delay is −20 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
The week
scheduled departures · origin local timeEach 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 outcomesActual 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
Conditions are tightest at IST and IAH: a 23% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +-2 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Istanbul to Houston route actually runs
Pro Flight Search records official board updates for nonstop IST to IAH 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
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: Istanbul (IST) to Houston (IAH) route reliability, measured from operated flights on official airport boards.
https://proflightsearch.com/search-flights/IST-IAH
IST to IAH questions
Is IST–IAH running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IST–IAH?
Operators schedule morning departures around 09:00 from IST. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IAH delay card to confirm conditions when you'd arrive.
How long is the flight from IST to IAH?
Great-circle distance is 10,232 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 752–907 min gate-to-gate on this route.
How often does IST–IAH fly?
Turkish Airlines runs the route with about 10 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.