Istanbul (IST) to Seattle (SEA)
Flight time
≈ 12h 55m
Bearing
341° N
Istanbul (IST) to Seattle (SEA) is 6,055 miles (9,745 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IST–SEA
Filed traffic dataIn May 2026, Turkish Airlines was the only carrier flying nonstop IST–SEA; the Airbus A350-900 was the most common aircraft at 100% of departures; flights ran 82% full.
Departures
62
May 2026
Seats
20,398
both directions
Passengers
16,647
both directions
Load factor
81.6%
RPM ÷ ASM
Who flies IST–SEA?
Turkish Airlines was the only carrier to fly nonstop IST–SEA in May 2026 (62 departures).
- TK
Turkish Airlines
62 departures · 20,398 seats
Share of departures100.0%81.6%
Load
What plane flies IST–SEA?
In May 2026, the Airbus A350-900 flew 100% of IST–SEA departures.
- Airbus A350-900
62 departures · 81.6% load
100.0%
How has IST–SEA traffic changed?
Nonstop IST–SEA departures fell from 78 in June 2025 to 62 in May 2026.
Monthly nonstop IST–SEA traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
78 departures · 18,880 passengers
78.5%
Load
July 2025
80 departures · 22,053 passengers
84.9%
Load
August 2025
80 departures · 23,446 passengers
89.1%
Load
September 2025
85 departures · 22,807 passengers
81.6%
Load
October 2025
81 departures · 19,533 passengers
73.3%
Load
November 2025
43 departures · 12,175 passengers
84.1%
Load
December 2025
58 departures · 16,312 passengers
85.5%
Load
January 2026
62 departures · 16,549 passengers
81.1%
Load
February 2026
40 departures · 10,861 passengers
82.5%
Load
March 2026
0 departures · 0 passengers
—
Load
April 2026
60 departures · 16,548 passengers
83.9%
Load
May 2026
62 departures · 16,647 passengers
81.6%
Load
By direction
Each direction is filed separately — they rarely match.
IST → SEA
80.8% full
31 departures · 8,245 passengers
SEA → IST
82.4% full
31 departures · 8,402 passengers
Nonstop IST–SEA 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 Istanbul (IST) from Seattle (SEA)?
IST to SEA is 6,055 miles (9,745 km / 5,262 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IST to SEA?
A nonstop covers the 6,055-mile great-circle distance in roughly 12h 55m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IST–SEA?
In May 2026, the Airbus A350-900 flew the largest share of departures (100.0%).
What mileage do I earn flying IST–SEA?
Distance-based programs credit off the 6,055-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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