Seattle-Tacoma International ⇄ Istanbul SEA–IST
Airlines flew 713 flights between Seattle-Tacoma International SEA in Seattle, WA and Istanbul, Turkey IST in Istanbul, TR in the twelve months to July 2026, both directions together: 193,544 passengers in 234,888 seats, 82% of them filled, and 12,437,484 pounds of freight. 6,070 miles, on 1 airline: Turk Hava Yollari A.O. (713).
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 62 |
| 2/25 | 41 |
| 3/25 | 61 |
| 4/25 | 60 |
| 5/25 | 62 |
| 6/25 | 78 |
| 7/25 | 80 |
| 8/25 | 80 |
| 9/25 | 85 |
| 10/25 | 81 |
| 11/25 | 43 |
| 12/25 | 58 |
| 1/26 | 62 |
| 2/26 | 40 |
| 4/26 | 60 |
| 5/26 | 62 |
| 6/26 | 70 |
| 7/26 | 72 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 15,992 |
| 2/25 | 10,153 |
| 3/25 | 14,536 |
| 4/25 | 15,152 |
| 5/25 | 15,513 |
| 6/25 | 18,880 |
| 7/25 | 22,053 |
| 8/25 | 23,446 |
| 9/25 | 22,807 |
| 10/25 | 19,533 |
| 11/25 | 12,175 |
| 12/25 | 16,312 |
| 1/26 | 16,549 |
| 2/26 | 10,861 |
| 4/26 | 16,548 |
| 5/26 | 16,647 |
| 6/26 | 18,464 |
| 7/26 | 20,202 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Turk Hava Yollari A.O. TK | 713 | 193,544 | 82% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Airbus Industrie A350-900 | 709 | 329 | 192,368 |
| Boeing 777-300/300ER/333ER | 2 | 349 | 632 |
| B787-900 Dreamliner | 2 | 300 | 544 |
SEA → IST this direction alone · flown January 2025 to July 2026
356 flights, 94,726 passengers in 117,444 seats, 4,027,148 pounds of freight. Turk Hava Yollari A.O. 356.
IST → SEA this direction alone · flown January 2025 to July 2026
357 flights, 98,818 passengers in 117,444 seats, 8,410,336 pounds of freight. Turk Hava Yollari A.O. 357.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Seattle-Tacoma International SEA and Istanbul, Turkey IST; all routes.