Dulles (IAD) to Istanbul (IST)
Flight time
≈ 11h 13m
Bearing
48° NE
Dulles (IAD) to Istanbul (IST) is 5,211 miles (8,387 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–IST
Filed traffic dataIn May 2026, Turkish Airlines was the only carrier flying nonstop IAD–IST; the Boeing 787-9 was the most common aircraft at 69% of departures; flights ran 85% full.
Departures
124
May 2026
Seats
39,111
both directions
Passengers
33,151
both directions
Load factor
84.8%
RPM ÷ ASM
Who flies IAD–IST?
Turkish Airlines was the only carrier to fly nonstop IAD–IST in May 2026 (124 departures).
- TK
Turkish Airlines
124 departures · 39,111 seats
Share of departures100.0%84.8%
Load
What plane flies IAD–IST?
In May 2026, the Boeing 787-9 flew 69% of IAD–IST departures — more than any other aircraft type.
- Boeing 787-9
85 departures · 83.5% load
68.5% - Boeing 777-300ER
39 departures · 87.1% load
31.4%
How has IAD–IST traffic changed?
Nonstop IAD–IST departures rose from 120 in June 2025 to 124 in May 2026.
Monthly nonstop IAD–IST traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
120 departures · 33,993 passengers
88.0%
Load
July 2025
123 departures · 35,603 passengers
89.5%
Load
August 2025
124 departures · 35,141 passengers
87.3%
Load
September 2025
120 departures · 32,932 passengers
84.6%
Load
October 2025
122 departures · 32,915 passengers
83.0%
Load
November 2025
111 departures · 30,995 passengers
85.8%
Load
December 2025
126 departures · 34,712 passengers
86.2%
Load
January 2026
120 departures · 33,617 passengers
86.3%
Load
February 2026
90 departures · 23,799 passengers
80.3%
Load
March 2026
0 departures · 0 passengers
—
Load
April 2026
120 departures · 30,938 passengers
83.0%
Load
May 2026
124 departures · 33,151 passengers
84.8%
Load
By direction
Each direction is filed separately — they rarely match.
IAD → IST
87.8% full
62 departures · 17,147 passengers
IST → IAD
81.7% full
62 departures · 16,004 passengers
Nonstop IAD–IST traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Istanbul
TR
İstanbul Airport
Coordinates
41.27°N, 28.73°E
Hemisphere
N · E
Frequently asked
How far is Dulles (IAD) from Istanbul (IST)?
IAD to IST is 5,211 miles (8,387 km / 4,528 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to IST?
A nonstop covers the 5,211-mile great-circle distance in roughly 11h 13m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–IST?
In May 2026, the Boeing 787-9 flew the largest share of departures (68.5%), followed by the Boeing 777-300ER (31.4%).
What mileage do I earn flying IAD–IST?
Distance-based programs credit off the 5,211-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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