IST → BOSIstanbul to Boston

live

Direct flights from Istanbul (IST) to Boston (BOS): 7 nonstop departures observed each week across 1 airline. The median arrival is 11 minutes late. No cancellations were recorded across the 4 tracked flights. The nonstop covers 7,727 km, an estimated 10 hours 24 minutes in the air. Measured by Pro Flight Search from live flight boards at Istanbul and Boston. Updated 13 September 2026 at 23:27 UTC.

IST Istanbul smooth · +0
BOS Boston smooth · +14
7,727 km · ~10h 24m est.
departs 16:407x weekly
Under pressure · 1 airline · 7x weekly · nonstop
62 / 100

route health from live IST and BOS delay boards

Median arrival delay is +11 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+11 minacross the last 4 operated legs
Flight time~10h 24mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
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 days
Turkish AirlinesTK

Flights TK81 16:40 daily

History

operated legs · board outcomes
09-13TK81dep +0 → arr+11
09-12TK81dep +0 → arr+4
09-11TK81dep +0 → arr+10
09-10TK81arrived+24

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ISTIstanbul +0 min smooth ⛅ mostly cloudy · N 10 kt Full IST delay board →
BOSBoston +14 min smooth 🌫 overcast · 5 kt Full BOS delay board →

Weather lens

Current conditions put the pressure at BOS: 45% odds of a 15+ minute delay and around +26 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Istanbul to Boston route actually runs

Pro Flight Search records official board updates for nonstop IST to BOS 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 Boston (BOS) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/IST-BOS
How we measure this →

IST to BOS questions

Is IST–BOS running on time right now?

Some delays possible. The arrival side at BOS is the weaker end, route health score 62/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from IST to BOS?

Great-circle distance is 7,727 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 575–692 min gate-to-gate on this route.

How often does IST–BOS fly?

Turkish Airlines runs the route with about 7 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 IST and arrival-side delay at BOS, 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.